bluuebunny/crossref_metadata_2025 huggingface dataset:
Streaming potential modeling in fractured rock: Insights into the identification of hydraulically active fractures
Authors: Roubinet D. , Linde N. , Jougnot D. , Irving J.
Published: May 2016

Numerous field experiments suggest that the self‐potential (SP) geophysical method may allow for the detection of hydraulically active fractures and provide information about fracture properties. However, a lack of suitable numerical tools for modeling streaming potentials in fractured media prevents quantitative interpretation and limits our understanding of how the SP method can be used in this regard. To address this issue, we present a highly efficient two‐dimensional discrete‐dual‐porosity approach for solving the fluid flow and associated self‐potential problems in fractured rock. Our approach is specifically designed for complex fracture networks that cannot be investigated using standard numerical methods. We then simulate SP signals associated with pumping conditions for a number of examples to show that (i) accounting for matrix fluid flow is essential for accurate SP modeling and (ii) the sensitivity of SP to hydraulically active fractures is intimately linked with fracture‐matrix fluid interactions. This implies that fractures associated with strong SP amplitudes are likely to be hydraulically conductive, attracting fluid flow from the surrounding matrix.
Cone angle control of the interaction of magnetic clouds with the Earth's bow shock
Authors: Turc L. , Escoubet C. P. , Fontaine D. , Kilpua E. K. J. , Enestam S.
Published: May 2016

We study the interaction of magnetic clouds (MCs) with the near‐Earth environment. Recent works suggest that the bow shock crossing may modify significantly the magnetic structure of an MC, and thus its ability to drive geomagnetic storms. This change is largely controlled by the bow shock configuration, which depends on the upstream interplanetary magnetic field (IMF) orientation. From the distribution of the magnetic field orientation in 152 Earth‐impacting MCs, we determine for the first time the typical shock configuration during MC events. We find that 56% (6.3%) of the time, the subsolar bow shock configuration is exclusively quasi‐perpendicular (quasi‐parallel). The rest of the time, both configurations coexist. Furthermore, using a subset of 63 MCs observed simultaneously in the solar wind and in the dayside magnetosheath, we determine the magnitude of the magnetic field alteration, how it depends on the shock configuration, and how it relates to the IMF cone angle.
Stroke multiplicity and horizontal scale of negative charge regions in thunderclouds
Authors: Williams Earle R. , Mattos Enrique V. , Machado Luiz A. T.
Published: May 2016

An X‐band polarimetric radar and multiple lightning detection systems are used to document the initial cloud‐to‐ground lightning flash in a large number (46 cases) of incipient thunderstorms, as part of the CHUVA‐Vale field campaign during the 2011/2012 spring‐summer in southeast Brazil. The results show an exceptionally low stroke multiplicity (87% of flashes with single stroke) in the initial ground flashes, a finding consistent with the limited space available for the positive leader extension into new regions of negative space charge in compact cells. The results here are contrasted with the behavior of ground flashes in mesoscale thunderstorms in previous studies. Additionally, we found evidence for a minimum scale (radar echo >20 dBZ) for lightning initiation (>3 km in radius) and that the peak currents of initial cloud‐to‐ground flashes in these compact thunderstorms are only half as large as return stroke peak currents in general.
Dense bottom gravity currents and their impact on pelagic methanotrophy at oxic/anoxic transition zones
Authors: Schmale Oliver , Krause Stefan , Holtermann Peter , Power Guerra Nicole C. , Umlauf Lars
Published: May 2016

We show that inflows of oxygenated waters into sulfidic layers have a strong impact on biogeochemical transformation at oxic/anoxic transition zones. Taking the pelagic methane dynamics in the Gotland Basin as an example, we performed our studies when one of the largest inflows ever recorded entered the Baltic Sea in March 2015. An inflowing gravity current transported oxic waters into the sulfidic deep layers and freshly generated a near‐bottom secondary redox interface. At the upper slope, where the inflowing water masses were vigorously turbulent and the main and secondary redox interfaces in close contact to each other, methane oxidation rates inside the transition zone were found to be higher compared to the weakly turbulent basin interior. At the main redox interface in the basin center, lateral intrusions of oxygenated waters into intermediate water depth may have stimulated the growth of the methanotrophic community and their activity.
Hillslope‐derived blocks retard river incision
Authors: Shobe Charles M. , Tucker Gregory E. , Anderson Robert S.
Published: May 2016

The most common detachment‐limited river incision models ignore the effects of sediment on fluvial erosion, yet steep reaches of mountain rivers often host clusters of large (>1 m) blocks. We argue that this distribution of blocks is a manifestation of an autogenic negative feedback in which fast vertical river incision steepens adjacent hillslopes, which deliver blocks to the channel. Blocks inhibit incision by shielding the bed and enhancing form drag. We explore this feedback with a 1‐D channel‐reach model in which block delivery by hillslopes depends on the river incision rate. Results indicate that incision‐dependent block delivery can explain the block distribution in Boulder Creek, Colorado. The proposed negative feedback may significantly slow knickpoint retreat, channel adjustment, and landscape response compared to rates predicted by current theory. The influence of hillslope‐derived blocks may complicate efforts to extract base level histories from river profiles.
Rational Co‐Design of Polymer Dielectrics for Energy Storage
Authors: Mannodi‐Kanakkithodi Arun , Treich Gregory M. , Huan Tran Doan , Ma Rui , Tefferi Mattewos , Cao Yang , Sotzing Gregory A. , Ramprasad Rampi
Published: May 2016

Although traditional materials discovery has historically benefited from intuition‐driven experimental approaches and serendipity, computational strategies have risen in prominence and proven to be a powerful complement to experiments in the modern materials research environment. It is illustrated here how one may harness a rational co‐design approach—involving synergies between high‐throughput computational screening and experimental synthesis and testing—with the example of polymer dielectrics design for electrostatic energy storage applications. Recent co‐design efforts that can potentially enable going beyond present‐day “standard” polymer dielectrics (such as biaxially oriented polypropylene) are highlighted. These efforts have led to the identification of several new organic polymer dielectrics within known generic polymer subclasses (e.g., polyurea, polythiourea, polyimide), and the recognition of the untapped potential inherent in entirely new and unanticipated chemical subspaces offered by organometallic polymers. The challenges that remain and the need for additional methodological developments necessary to further strengthen the co‐design concept are then presented.
Development of Acyclovir Loaded β‐Cyclodextrin‐g‐Poly Methacrylic Acid Hydrogel Microparticles: An In Vitro Characterization
Authors: Mahmood Asif , Ahmad Mahmood , Sarfraz Rai Muhammad , Usman Minhas Muhammad
Published: May 2016

In this work, successful efforts have been performed for solubility enhancement of acyclovir. pH‐sensitive β‐Cyclodextrin‐g‐poly methacrylic acid (MAA) hydrogel microparticles were developed. β‐Cyclodextrin, MAA, N,N‐methylene bisacrylamide were used as polymer, monomer, and cross‐linker, respectively. Nine different formulations (BM‐1 to BM‐9) were prepared by aqueous free radical polymerization. Developed microparticles were characterized for FTIR, Differential Scanning Calorimetry/Thermo Gravimetric Analysis, PXRD, energy‐dispersive x‐ray spectroscopy, SEM, TEM, optical microscopy, zeta sizer, percent equilibrium swelling (%ES), solubility studies, and in vitro drug release studies. Higher swelling results (83.68%) were obtained at pH 7.4 in less than 3 h. Porous surfaces with drug were seen in TEM images. Maximum release was observed at pH 7.4 (89.51%). Solubility enhancement was 7.38‐fold in water as compared to pure acyclovir. Thermal stability of grafted microparticles was increased up to 440.13°C. A potential approach for solubility enhancement was successfully developed.
CPR related thoracic injury: a comparison of CPR guidelines between 2005 and 2010
Authors: Oya Seiro , Shinjo Takafumi , Fujii Yasuhiro , Kamo Jun , Teruya Hideki , Kinoshita Hirohisa
Published: May 2016

Aim

The objective of this study was to investigate the incidence and characteristics of thoracic injuries associated with cardiopulmonary resuscitation (CPR) performed under the 2005 and the 2010 guidelines.

Methods

We evaluated patients who had an out‐of‐hospital cardiac arrest in 2010 (2005 group) and 2012 (2010 group). We analyzed the incidence and characteristics of rib fractures and pneumothoraces received during CPR as determined by medical records and image studies.

Results

Two hundred and ninety‐two patients in the 2005 group and 243 in the 2010 group were enrolled. The number of patients with rib fractures was greater in the 2010 group than in the 2005 group (123 [42.1%] versus 167 [68.7%], P < 0.001), and the number of pneumothorax patients with rib fractures was also higher (8 [2.7%] versus 21 [8.6%], P = 0.004). Of the 21 patients, four had a tension pneumothorax. The anterior–posterior diameter of the chest (APD) was smaller in patients with a pneumothorax and rib fractures than those without the injuries (166.0 mm [standard deviation 22.8] versus 176.2 mm [standard deviation 21.0], P = 0.04), and the APD for patients of Japanese descent was smaller than that of patients of European descent by more than 50 mm.

Conclusion

The number of rib fractures and pneumothoraces received during CPR increased significantly under the 2010 guidelines when compared with the 2005 guidelines. As the APD for patients of Japanese descent is smaller than that of patients of European descent, Japanese medical facilities need to be prepared for possible fatal adverse events associated with CPR under the current international guidelines.
Reversible selectivity of water/organic solvent mixtures in poly(lactic acid) film
Authors: Iida Ryo , Yonezu Tomoki , Shinkawa Yasuaki , Nagai Kazukiyo
Published: May 2016

The separation properties of water/organic solvent mixtures in poly(lactic acid) (PLA) films were investigated. The organic solvent flux increased linearly as the feed concentration increased, whereas the water flux was almost constant up to a feed concentration of 30 wt %. Interestingly, the permselectivity of PLA films was reversed from organic solvent selectivity to high water selectivity depending on the type of organic solvent. The permselectivity was strongly correlated with the solution concentration at which the solvent‐induced crystallization of the PLA films occurred. The selectivity of permeation, solution, and diffusion in water/organic solvent mixtures was determined by the expanded free volume of the PLA films as a result of the interaction between PLA and the water/organic solvent mixture. The permeability behavior of water/organic solvent mixtures in PLA films was very complex. However, it was found that this behavior could be predicted through immersion tests. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43822.
Fabrication of Polyaniline/Graphene/Polyester Textile Electrode Materials for Flexible Supercapacitors with High Capacitance and Cycling Stability
Authors: Shao Fu , Bian Shao‐Wei , Zhu Quan , Guo Mei‐Xia , Liu Si , Peng Yi‐Hang
Published: May 2016

Vertical polyaniline (PANI) nanowire arrays on graphene‐sheet‐coated polyester cloth (RGO/PETC) were fabricated by the in situ chemical polymerization of aniline. The 3D conductive network that was formed by the graphene sheets greatly enhanced the conductivity of PANI/RGO/PETC and improved its mechanical stability. PANI nanowire arrays increased the active surface area of PANI, whilst the hierarchically porous structure of the PANI/RGO/PETC electrode facilitated the diffusion of the electrolyte ions. Electrochemical measurements showed that the composite electrode exhibited a maximum specific capacitance of 1293 F g−1 at a current density of 1 A g−1. Capacitance retention was greater than 95 %, even after 3000 cycles, which indicated that the electrode material has excellent cycling stability. Moreover, the electrode structure endowed the PANI/RGO/PETC electrode with a stable electrochemical performance under mechanical bending and stretching.
Abbruch des rechtsrheinischen Pfeilers der Rheinbrücke Wesel
Authors: Groß Thomas , Neuhaus Holger
Published: May 2016

Nachdem im Jahr 2009 eine neue moderne Schrägseilbrücke über den Rhein für den Verkehr freigegeben wurde, waren die alte Brücke und deren Pfeiler im Rhein zurückzubauen. Für den Rückbau der Pfeiler war unter den schwierigen Bedingungen im Gewässerbereich eine Spundwandbaugrube zu errichten. Zum Schutz derselben war zusätzlich ein sehr großes Leitwerk als Schutz der Baugrube vor den großen auf dem Rhein fahrenden Schiffen herzurichten. Im Schutze der Baugrube wurde der alte massive Pfeiler konventionell abgebrochen. Nach dem Abbruch des Pfeilers bis weit unter die Gewässersohle waren das Leitwerk und die Baugrube wieder zurückzubauen. Die Arbeiten im Gewässerbereich und deren besondere Aufgabenstellungen werden hier beschrieben.

Demolition of the pillar at the right bank of the bridge over the river Rhine by Wesel

After a new modern cable‐stayed bridge across the Rhine was opened to traffic in 2009, the old bridge and its pillars has to be dismantled in the river Rhine. For the dismantling of the pillar a sheet piling pit was erected under the difficult conditions in the water sector. To protect it additionally a very large staging was built to protect the pit from damages with the large Rhine vessels travelling on the river Rhine. Under cover of the pit of the ancient massive pillars were dismantled conventionally. After dismantling the pillar deep below the riverbed, the staging and the pit were dismantled again. The work in the water sector and their special tasks are described.
Querkrafttragfähigkeit von Platten nahe Auflagern
Authors: Lantsoght Eva , van der Veen Cor , de Boer Ane , Walraven Joost
Published: May 2016

In Anbetracht steigender Verkehrslasten und geringer angesetzter Tragfähigkeiten in den vor Kurzem eingeführten Eurocodes steht in den Niederlanden die Querkrafttragfähigkeit vieler bestehender Brücken mit Stahlbetonmassivdecke zur Debatte. In den Normvorschriften werden jedoch günstige Wirkungsmechanismen, wie die Querkraftverteilung in den Platten, nicht berücksichtigt. Man benötigte Forschungsergebnisse, um das Verhalten von Stahlbetonplatten unter Einzellasten in der Nähe von Auflagern zu verstehen. Für diese Studie wurden Versuche an Platten und Balken durchgeführt. Sie zeigten, dass Platten unter konzentrierter Querkraftbelastung eine größere Tragfähigkeit haben als Balken. Das bedeutet, dass für Plattenbrücken ein höherer Belastungswert angesetzt werden kann, sodass weniger Brücken als bisher vermutet einer weiteren Prüfung bedürfen.

Shear capacity of slabs close to supports – Overview of experiments

The shear capacity of many of the existing reinforced concrete solid slab bridges in The Netherlands is subject to discussion due to the higher traffic loads and lower prescribed shear capacities in the recently implemented Eurocodes. However, the code provisions do not take into account beneficial mechanisms such as transverse load redistribution in slabs. Research was needed to understand the behavior of reinforced concrete slabs under concentrated loads close to supports. For this study, experiments on slabs and beams were carried out. The experiments showed that slabs under concentrated loads in shear have a larger capacity than beams. This implies that a higher capacity can be contributed to slab bridges upon assessment, so that less bridges will be identified as needing further study.
Einfluss der Faserzugabe auf die Streuung im Zugtragverhalten von Stahlfaserbeton
Authors: Hadl Philipp , Tue Nguyen Viet
Published: May 2016

Stahlfaserbeton wird seit Jahrzehnten in verschiedenen Bereichen des Bauwesens erfolgreich eingesetzt. Hauptsächlich kommt Stahlfaserbeton aber in Form von Industriefußböden zur Anwendung. Die großen Streuungen in den Materialkennwerten erschweren die Anwendung für Bauteile mit nennenswerten Beanspruchungen. Daher wurden umfangreiche experimentelle Untersuchungen zur Streuung des Zugtragverhaltens von Faserbeton durchgeführt. Diese beinhalten 4‐Punkt‐Biegezugversuche an großformatigen Balken sowie an Standardbiegebalken nach DAfStb‐Richtlinie Stahlfaserbeton. Die Balken unterscheiden sich in verwendetem Fasergehalt und ‐länge sowie nach der Art der Faserzugabe. Nach Durchführung der Biegezugversuche wurde entlang der Balken die Faserorientierung und ‐verteilung mit dem fotooptischen Verfahren bestimmt. Die Ergebnisse zeigen, dass die Faserverteilung stark streut, während die Faserorientierung nur in geringem Maße schwankt. Sowohl in den Biegezugversuchen als auch in der Auswertung der Schnittbilder ist der Einfluss der Faserzugabeart feststellbar. Die Streuung im Tragverhalten kann durch eine geeignete Faserzugabe und folglich homogenere Faserverteilung reduziert werden.

Influence of fibre addition on the scattering in the post cracking tensile behaviour of steel fibre reinforced concrete

Steel fibre reinforced concrete (SFRC) has been successfully used in certain areas of concrete constructions. However, the main area of application remains industrial concrete floor slabs. The large scattering in the material properties impedes the application for components with significant loads. Therefore, extensive experimental investigations on the scattering in the tensile post cracking behaviour of SFRC were carried out. The investigations include 4‐point‐bending tests on large‐sized beams as well as standardized beams according to the German guideline for fibre concrete. The specimens differ in fibre amount, fibre length and type of fibre addition. After bending tests, the fibre orientation and distribution were determined along all specimens by using an opto‐analytical method. The test results demonstrate that the fibre orientation is almost constant, while the fibre distribution scatters significantly. In bending tests as well as the opto‐analytical analysis, the influence of the type of fibre addition is evident. Consequently, the scattering in the mechanical behaviour can be reduced by a suitable fibre addition and thus a more homogeneous fibre distribution can be gained.
Build, grow, cultivate effective work groups for your athletics department
Authors: McCarthy Claudine
Published: May 2016

If you want to successfully manage your work in a changing environment, you'll need to cultivate high‐functioning work groups that communicate a shared vision.
AD shares practical tips for more efficiently managing personnel decisions, time, and finances
Authors: McCarthy Claudine
Published: May 2016

Like most athletics administrators, Stefanie “Stevie” Baker‐Watson has faced difficult personnel issues during her 20‐year career in college athletics.
Real‐time Simulation of Catheterization in Endovascular Surgeries
Authors: Wang Yanzhen , Serracino‐Inglott Ferdinand , Yi Xiaodong , Yuan Xue‐Feng , Yang Xue‐Jun
Published: May 2016

This paper proposes an efficient and stable numerical method for modeling catheterization during endovascular surgeries. The guidewire‐catheter combination is treated as an elastic rod, which has very large resistance against twisting about its medial axis. A torsion free assumption is made, and the physical behavior of the rod is predominately governed by stretching and bending energies. This simplification greatly reduces the computational complexity and makes the model more stable, while the simulation results are still realistic enough for its application in endovascular surgeries. A contact handling algorithm that directly makes use of the volume data of the relevant tissues is proposed to simulate the interaction between the guidewire‐catheter combination and the aortic wall. During each simulation step, the penetration depth of each vertex in contact with the aortic wall is calculated using moving least squares surfaces, and the contact is then resolved in a position‐based manner. A comprehensive quantitative evaluation of the rod model is performed to validate its accuracy. Finally, the proposed approach is applied in a prototype system for simulation of endovascular aneurysm repair surgeries. Its efficiency and effectiveness are demonstrated in a real‐time interactive catheterization simulation. Copyright © 2016 John Wiley & Sons, Ltd.
Mechanistic Modeling of Pollutant Removal, Temperature, and Evaporation in Chemical Air Scrubbers
Authors: Van der Heyden Caroline , Vanthillo Bart , Pieters Jan G. , Demeyer Peter , Volcke Eveline I. P.
Published: May 2016

Chemical air scrubbers reduce the concentration of water‐soluble components such as ammonia from the outgoing ventilation air through absorption in water, followed by chemical conversions and removal of the end products. A mechanistic model for a countercurrent air scrubber was set up. Mass balances for ammonia, hydrogen sulfide, nitrous oxide, and methane were implemented, as well as the water mass balance and heat balances. The model was validated against experimental data from a conventional fattening pig housing facility. The effect of influent characteristics, design parameters, and control handles on the removal efficiency, the temperature profile, and the water evaporation rate were investigated through simulation. The model was able to describe the behavior of a countercurrent chemical air scrubber.
A New Stripping Column Process and Optimization of Its Operation
Authors: Li Guoqing , Gao Dan , Shi Junjun
Published: May 2016

Regarding a kind of stripping column that is widely used in the chemical industry and which operates in total cold reflux and without top light product, a new stripping process is suggested. It takes dual feeds of the hot plus the cold feed, by replacing part of the cold reflux with a part of cold feed, resulting in significant reduction of energy consumption and simplification of the overhead vapor route. As no changes on the column body and only a pipe are needed, this new process can be implemented conveniently in retrofitted projects. Further, an optimization study is developed for choosing the proper flow rate of the cold feed and the appropriate column running pressure. An application in a stripper dealing with the pre‐hydrotreating reaction products of an oil catalytic reformer shows that the new process is valid.
Interactive Thermal Effects on Metal–Organic Framework Polymer Composite Membranes
Authors: Cacho‐Bailo Fernando , Téllez Carlos , Coronas Joaquín
Published: May 2016

Polymeric membranes are important tools for intensifying separation processes in chemical industries, concerning strategic tasks such as CO2 sequestration, H2 production, and water supply and disposal. Mixed‐matrix and supported membranes have been widely developed; recently many of them have been based on metal–organic frameworks (MOFs). However, most of the impacts MOFs have within the polymer matrix have yet to be determined. The effects related to thermal behavior arising from the combination of MOF ZIF‐8 and polysulfone have now been quantified. The catalyzed oxidation of the polymer is strongly affected by the MOF crystal size and distribution inside the membrane. A 16 wt % 140 nm‐sized ZIF‐8 loading causes a 40 % decrease in the observed activation energy of the polysulfone oxidation that takes place at a temperature (545 °C) 80 °C lower than in the raw polymer (625 °C).
ChemInform Abstract: LOW‐TEMPERATURE MATRIX ISOLATION OF THE 1,1‐DIAZENE H2NN. ELECTRONIC AND INFRARED CHARACTERIZATION
Authors: SYLWESTER A. P. , DERVAN P. B.
Published: May 2016

UV‐Bestrahlung von Carbamoylazid (I) in Z‐Methyl‐TH" bei 80 Koder in einer Ar‐Matrix bei I0 K führt zur Bildung der blau‐violetten Spezies (III) (Ämax = 636 nm; n,1t ).
ChemInform Abstract: TRIBARIUM TETRAARSENIDODISTANNATE, A NEW ZINTL PHASE WITH CHAIN STRUCTURE
Authors: EISENMANN B. , JORDAN H. , SCHAEFER H. +
Published: May 2016

Ba3Sn2As4, eine neue Zintl‐Phase mit Kettenstruktur wird aus den Elementen unter Ar (860°C, 1 h) dargestellt.
ChemInform Abstract: INVESTIGATIONS OF THE THERMODYNAMICS OF OXYGEN AND THE DETERMINATION OF THE MISCIBILITY GAP IN THE SYSTEM COPPER‐OXYGEN‐LEAD AT 1200°
Authors: ANIK S. , FROHBERG M. G.
Published: May 2016

Durch EM K‐ Messungen der Kette Abei 1200°C bestimmte Sauerstoffaktivitäten im System Cu‐O‐Pb gestatten zusammenmit Abschreckversuchen die Festlegung der Mischungslücke und der dazugehörigen Konodenverläufe.
ChemInform Abstract: ELECTROCHEMICAL BEHAVIOR OF SOLID CATHODE MATERIALS IN ORGANIC‐ELECTROLYTE LITHIUM BATTERIES: COPPER SULFIDES
Authors: BONINO F. , LAZZARI M. , RIVOLTA B. , SCROSATI B.
Published: May 2016

In Li‐Zellen vom Typ Li/LiClO4‐PC/Cu2S wurden α‐Cu2S (Chalkocit), Cu,‐76S (Digenit) und CuS (Covellit) als Kathoden getestet (Röntgenspektrcn, Entladungskurven).
ChemInform Abstract: LEAD CORROSION IN AEQUOUS SOLUTIONS AND IN DRINKING WATER
Authors: FELLER H. G. , TEEPENS H. , ARTS W. , BRETSCHNEIDER H.‐J.
Published: May 2016

Das elektrochemische Verhalten des Pb in Leitungswasser und in SOf‐ und CF‐haltigen wäßrigen Lösungen sowie die Deckschichtbildung und ‐zusammensetzung werden im Zusammenhang mit der Aufnahme des hochtoxischen Pb durch den Menschen untersucht Die in Leitungswasser gebildeten porigen Deckschichten haben erstens nur schwach schützende Wirkung und werden zweitens in Partikelform durch das strömende Wasser freigesetzt.
ChemInform Abstract: ON THE STRUCTURES OF ALPHA‐LITHIATED SULFOXIDE, SULFONE AND SULFONIUM SYSTEMS. IMPLICATIONS FOR THE STEREOCHEMISTRY OF FUNCTIONALIZATION OF CARBON ATOM ADJACENT TO SULFUR
Authors: WOLFE S. , LAJOHN L. A. , WEAVER D. F.
Published: May 2016

Die Strukturen der Lithiumverbindungen (I)‐(III) werden mit dem 3‐2lG ‐Modell berechnet.
ChemInform Abstract: ORGANOARSINO‐SUBSTITUTED SULFUR DIIMIDES: CRYSTAL STRUCTURE ANALYSES OF 3,7‐DI‐TERT‐BUTYL‐3H,7H‐1Λ4,5Λ4,2,4,6,8,3,7‐DITHIATETRAZADIARSOCI# NE AND BIS(DIPHENYLARSINO)SULFUR DIIMIDE
Authors: GIEREN A. , BETZ H. , HUEBNER T. + , LAMM V. , HERBERHOLD M. , GULDNER K.
Published: May 2016

Durch Umsetzung des Salzes KZSN, mit Alkyl‐ bzw. Arylarsenchloriden werden Verbindungen des Typs (III) bzw. (V) dargestellt.
ChemInform Abstract: STRUCTURE AND BONDING IN DIRHODIUM(II) TETRASALICYLATE
Authors: BANCROFT D. P. , COTTON F. A. , HAN S.
Published: May 2016

Röntgenkristallographisehe Bestimmung der Struktur der in kristalliner Form als Ethanol‐Aquo‐Addukt erhaltenen Titelverbindung (I) ergibt RG P21/n mit Z=4.
ChemInform Abstract: ELECTRONIC SWITCHING OF RING ORIENTATION IN CYCLOPENTADIENYL‐BRIDGED POLYMERS
Authors: CANADELL E. , EISENSTEIN O. , HUGHBANKS T.
Published: May 2016

Untersuchung der elektronischen und strukturellen Eigenschaften von [(C5H5)2Pb]" und [C H3Zn(C5H5)]" mit der LCAO‐Methode zur Bandstrukturbe‐ rechnung.
ChemInform Abstract: PHOSGENE AS REAGENT FOR GAS CHROMATOGRAPHIC ENANTIOMER SEPARATION OF 1,2‐ AND 1,3‐DIOLS, α‐AMINO ALCOHOLS, α‐HYDROXY ACIDS AND N‐METHYL‐α‐AMINO ACIDS
Authors: KOENIG W. A. + , STEINBACH E. , ERNST K.
Published: May 2016

Die im Titel genannten 1,2‐bisfunktionalisierten Verbindungen werden mit Phosgen in die cyclischen Derivate (III)‐(VI) übergefühn, die sich gaschromatographisch (stationäre Phase: Polysiloxan XE‐60‐L‐Valin‐(lU‐a‐phenylethylamid; Kapillarsäule) in ihre Enantiomere trennen lassen.
ChemInform Abstract: DIRECT, INDIRECT AND ASSISTED ELECTROOXIDATION OF BENZENETRICARBONYLCHROMIUM DERIVATIVES. A COMPARATIVE STUDY IN ACETONITRILE AND IN N,N‐DIMETHYLFORMAMIDE
Authors: DEGRAND C. , RADECKI‐SUDRE A.
Published: May 2016

Anodische Oxidation des Benzoltricarbonylchrom‐Komplexes (I) führt in Acetonitril zu Chrom(ll)‐ und in Dimethylformamid zu Chrom(III)‐Komplexen.
ChemInform Abstract: Unusual Bimetallic Catalyst Synthesized.
Authors: MAUGH T. H. II
Published: May 2016

Es wird ein neuer Mangan‐Cobalt‐Katalysator aus dem Arbeitskreis von Klabunde beschrieben, der nach der Technik der "Solvated Metal Atom Dispersion" (SMAD) hergestellt wird.
ChemInform Abstract: REACTIONS OF 1,2,4‐THIADIAZOLE‐3,5‐DICARBONITRILE AND X‐RAY STRUCTURE ANALYSIS OF METHYL 3‐CYANO‐1,2,4‐THIADIAZOLE‐5‐CARBOXIMIDATE
Authors: ROESKY H. W. , HOFMANN H. , KELLER K. , PINKERT W. , JONES P. G. , SHELDRICK G. M.
Published: May 2016

Bei Variation der Reaktionsbedingungen bildet das Dicarbonitril (II) isomerenfrei die Produkte (I) und (III) bzw. (IV)‐(VI).
ChemInform Abstract: RING OPENING AND SUBSTITUTION REACTIONS OF 4,4‐DIHALOPYRAZOLIN‐5‐ONES WITH NUCLEOPHILES
Authors: KIRSCHKE K. , LUTZE G. , SCHMITZ E.
Published: May 2016

Die Titelverbindungen (I) reagieren mit den Alkoholaten (II) glatt unter‐RingÖffnung zu den instabilen Monohalogenestern (IIIa) und den stabilen Estern (IIIb), die durch Nal zu den Acetessigestern (IV) reduziert werden.
ChemInform Abstract: HIGH THREO DIASTEREOSELECTIVITY VIA EUROPIUM(III)‐CATALYZED CYCLOCONDENSATION OF A SILYLOXY DIENE WITH α‐ALKOXY ALDEHYDES. SYNTHESIS OF (‐)PESTALOTIN
Authors: MIDLAND M. M. , GRAHAM R. S.
Published: May 2016

Es wird gefunden, daß die Cyclokondensation des Silyloxydiens (I) mit den′ Hexanalderi‐ vaten (II)in Gegenwart von katalytischen Mengen von als Lewis‐Säure‐n wirkenden Europium(III)‐Komplexen mit ausgezeichneter Stereoselektivität zu einem Gemisch aus den gewünschten threo‐Derivaten (III) und den (nicht gewünschten) erythro‐Derivaten (IV) führt.
ChemInform Abstract: CHEMISTRY OF EXCIPLEXES. 19. PHOTOREDUCTION OF AROMATIC COMPOUNDS VIA AMINE EXCIPLEXES
Authors: YANG N. C. , CHIANG W.‐L. , LANGAN J. R.
Published: May 2016

Aromatische Kohlenwasserstoffe wie (I), (V) oder (VIII) werden mit Natriumboranat in Gegenwart tertiärer Amine wie (II) unter Bestrahlung reduziert.
ChemInform Abstract: SILICON IN BENZAMIDE‐DIRECTED ORTHO‐METALATION. FORMATION AND REACTIONS OF BENZAMIDE BENZYNES
Authors: SHANKARAN K. , SNIECKUS V.
Published: May 2016

Bei. der Umsetzung des Trimethylsilyl‐substituierten Triflates (Ib) mit Tetrabutylammoniumfluorid wird als reaktive Zwischenstufe das Arin ( Il) gebildet, das mit Dienen wie (III) oder (V) bzw. mit Nucleophilen abgefangen wird.
ChemInform Abstract: REACTIONS OF ETHANOL AND ACETALDEHYDE OVER NOBLE METAL AND METAL OXIDE CATALYSTS
Authors: MCCABE R. W. , MITCHELL P. J.
Published: May 2016

Die Reaktion von Ethanol mit Sauerstoff in einem Durchflußreaktor in Gegenwart verschiedener Katalysatoren wird untersucht.
ChemInform Abstract: SOME RING‐TRANSFORMATION REACTIONS OF DESAURINS
Authors: L'ABBE G. , VANGHELUWE P. , TOPPET S. , KING G. S. D. , VAN MEERVELT L.
Published: May 2016

Das Desaurin (I) reagiert in Form des Thioketens (II) mit NaN3/Me3SO4, mit Diethylaminopropin bzw. mit Methylbenzaldimin zu den Derivaten (III), (IV) bzw. (V).
ChemInform Abstract: N,N‐BIS(TRIMETHYLSILYL)METHOXYMETHYLAMINE AS A CONVENIENT SYNTHETIC EQUIVALENT FOR +CH2NH2: PRIMARY AMINOMETHYLATION OF ORGANOMETALLIC COMPOUNDS
Authors: MORIMOTO T. , TAKAHASHI T. , SEKIYA M.
Published: May 2016

Das aus dem Chlormethylether (I) und dem Lithiumamid (II) zugängliche silylierte Halbaminal (III) reagiert mit Grignard‐Verbindungen (IV) oder Organo‐Lithiumverbindungen (VII) zu silylierten Aminen (V), die sauer in Gegenwart von Methanol zu den primären Aminen (VI) gespalten werden.
ChemInform Abstract: STUDIES ON CONJUGATED NITRILES. IV. REACTION OF ETHYL CYANOFORMATE WITH ORGANOMAGNESIUM, ‐ZINC, AND ‐CADMIUM REAGENTS, AND PHOSPHONIUM YLIDE
Authors: AKIYAMA Y. , TAKEBAYASHI S. , KAWASAKI T. , SAKAMOTO M.
Published: May 2016

Cyanameisensäureethylester (I) reagiert mit den Cadmium‐Organylen (II) zu den α‐Oxocarbonsäureestern (III).
ChemInform Abstract: THE SALT‐FREE SYNTHESIS OF ARYL ETHERS USING METHYL TRICHLORACETATE
Authors: RENGA J. M. , WANG P.‐C.
Published: May 2016

Die Phenole (I) werden mit den Halogeniden (II) verethert, wobei Trichloressigsäuremethylester (III) als Halogenwasserstoff‐Fänger eingesetzt wird.
ChemInform Abstract: THE SYNTHESIS OF E‐(2S,3S)‐3‐TRIMETHYLSILYLGLYCIDOL AND ITS CONVERSION TO (‐)‐PROPRANOLOL
Authors: KATSUKI T.
Published: May 2016

3‐TrimethylsilyI‐propargylalkohol (I) wird mit Lithiumalanat zum entsprechenden Allyl‐Derivat (II) reduziert und dann in Gegenwart von (‐)‐Diisopro‐ pyltartrat zum (2S,3S)‐Epoxyalkohol (IIIa) stereospezifisch epoxidiert.
ChemInform Abstract: CONVENIENT ONE‐POT SYNTHESIS OF SPIRO‐(E)‐α‐ETHYLIDENE‐Γ‐BUTYROLACTONES
Authors: LADLOW M. , PATTENDEN G.
Published: May 2016

Für die Synthese des antileukämisch wirksamen Lactons Allamandin (V) wird eine Methode zur stereospezifischen Herstellung der im Titel genannten Verbindungen (III) ausgearbeitet.
ChemInform Abstract: REGIOSELECTIVE SYNTHESIS OF DIHYDROFURANS FROM 2,2‐DIBROMO‐1,3‐DIKETONE AND OLEFIN USING COPPER
Authors: YOSHIDA J. , YANO S. , OZAWA T. , KAWABATA N.
Published: May 2016

Aus den 2,2‐Dibrom‐cyclohexan‐l ,3‐dionen (D‐erhält man mit Styrol (ll)vin Gegenwart von Cu‐Pulver die kondensierten Dihydrofurane (III).
ChemInform Abstract: Photochemie von Aminoketonen. 9. Mitt. Darstellung und regioselektive Photocyclisierung von N‐Benzoylethyl‐sarkosin‐Derivaten.
Authors: HENNING H. G. , GELBIN A. , SCHOEDER H. +
Published: May 2016

Bestrahlung der Sarkosinderivate (III) ergibt regioselektiv die 5‐unsubstituierten Pyrrolidinone (IV).
ChemInform Abstract: AMNESIA‐REVERSAL ACTIVITY OF A SERIES OF N‐((DISUBSTITUTED‐AMINO)ALKYL)‐2‐OXO‐1‐PYRROLIDINEACETAMIDES, INCLUDING PRAMIRACETAM
Authors: BUTLER D. E. , NORDIN I. C. , L'ITALIEN Y. J. , ZWEISLER L. , POSCHEL P. H. , MARRIOTT J. F.
Published: May 2016

Aus dem Ester (I) und den Diamimen (II) erhält man die Amide (III).
ChemInform Abstract: FUNCTIONAL POLYMERS. XXVII: 2(2‐HYDROXY‐4‐ACRYLOXY(METHACRYLOXY)PHENYL)2H‐BENZOTRIAZOLE: MONOMERS, POLYMERS, AND COPOLYMERS
Authors: LI S. , ALBERTSSON A.‐C. , GUPTA A. , BASSETT W. JUN. , VOGL O.
Published: May 2016

Von dem als UV‐Absorbens bzw. als UV‐Stabiliszitor (für Kunststoffe) bekannten Triazol (IV) wird ausgehend von dem Nitroanilin (I) ein einheitlich verlaufender Syntheseweg vorgestellt.
ChemInform Abstract: SYNTHESIS OF 6‐ACETYL‐3‐ALKYL‐2‐PHENYLCHROMEN‐4‐ONES BY PHASE TRANSFER CATALYZED BAKER‐VENKATARAMAN REACTION
Authors: HENNIG H. G. , SCHWABE B. , KERNCHEN F. , WESTPHAL G.
Published: May 2016

Die Titelverbindungen (VI) lassen sich" in vier Stufen nach einer verbesserten Variante der Baker‐Venkataraman‐Synthese darstellen.
ChemInform Abstract: SYNTHESIS AND ANTIVIRAL EVALUATION OF CARBOCYCLIC ANALOGS OF RIBOFURANOSIDES OF 2‐AMINO‐6‐SUBSTITUTED‐PURINES AND OF 2‐AMINO‐6‐SUBSTITUTED‐8‐AZAPURINES
Authors: SHEALY Y. F. , CLAYTON J. D. , ARNETT G. , SHANNON W. M.
Published: May 2016

Nach bekannten Verfahren werden die Heterocyclen (I)‐(V) dargestellt, und ihre Wirkung gegen Viren wird geprüft.
ChemInform Abstract: METHOTREXATE ANALOGS. 21. DIVERGENT INFLUENCE OF ALKYL CHAIN LENGTH ON THE DIHYDROFOLATE REDUCTASE AFFINITY AND CYTOTOXICITY OF METHOTREXATE MONOESTERS
Authors: ROSOWSKY A. , FORSCH R. A. , YU C.‐S. , LAZARUS H. , BEARDSLEY G. P.
Published: May 2016

Methotrexat (I) reagiert mit Alkylbrorniden unter den angegebenen Reaktionsbedingungen zu Gemischen aus den Dicarbonsäureestern (II) und den Dicarbonsäuremonoestern (III) und (IV).
ChemInform Abstract: HALOGENATION OF AROMATIC SILANES. XXXII. CHLORINATION OF MESITYLTRICHLOROSILANE (3,5‐DIMETHYLBENZYLTRICHLOROSILANE)
Authors: MOTSAREV G. V. , INSHAKOVA V. T. , ROZENBERG V. R. , KOLBASOV V. I. , USHAKOV A. A. , ALIKHANOV P. P.
Published: May 2016

Läßt man auf Mesityl‐trichlorsilan (III) Chlor einwirken, so entsteht ein Gemisch der Derivate (IV)‐(VII).
ChemInform Abstract: PREPARATION OF β‐SUBSTITUTED TRANS‐ETHYLENE DIPHENYLPHOSPHINES AND SULFIDES BY PHOSPHORYL‐ AND THIOPHOSPHORYL‐ACTIVATED OLEFINATION
Authors: GLOYNA D.
Published: May 2016

Methylen‐bis‐diphenylphosphinmonoxid (I) in Toluol reagiert regiospezifisch und stereoselektiv mit Aldehyden in Gegenwart von KOtBu zu den β‐substituierten trans‐Ethylendiphenylphosphinen (II), die zu den Sulfiden (III) oxidiert werden können.
ChemInform Abstract: DERIVATIVES OF O‐PHENYLENE PHOSPHATE. 28. BIS(DIALKYLAMINO)‐O‐PHENYLENE(DIOXYPHOSPHONIUM SALTS BY HALOGENATION OF O‐PHENYLENE PHOSPHORAMIDITES
Authors: GLOEDE J.
Published: May 2016

Die N,N‐disubstituierten Phosphorigsäureesteramide (I) reagieren mit molekularem Chlor im Molverhältnis 2 : l zu den als Hexachloroantimonate (I15) isolierbaren Diamino‐o‐phenylendioxyphosphonium‐Kationen.
ChemInform Abstract: SUBSTITUTION REACTIONS AND OXIDATIVE ADDITION ON 2‐CHLORO‐4,4,5,5‐TETRAKIS(TRIFLUOROMETHYL)‐1,3,2‐DIOXAPHOSPHOLANE
Authors: BOHLEN R. , ROESCHENTHALER G.‐V. +
Published: May 2016

Durch Substitution von Chlor in der Titelverbindung (I) werden Phosphite (II) dargestellt.
ChemInform Abstract: SYNTHESES AND X‐RAY CRYSTAL STRUCTURES OF TWO NEW CLASSES OF MACROCYCLIC LIGANDS HAVING BOTH PHOSPHORUS AND NITROGEN DONOR ATOMS
Authors: HOPE H. , VIGGIANO M. , MOEZZI B. , POWER P. P.
Published: May 2016

Die beiden Makrocyclen (I) und (III) werden wie aufgezeichnet ausgehend vom Cyclam (II) synthetisiert.
ChemInform Abstract: SYNTHESIS AND CRYSTAL STRUCTURE OF 3‐(LITHIOMETHYL)‐1,1,2,2‐TETRAMETHYLCYCLOPROPANE, A STABLE CYCLOPROPYLMETHYLLITHIUM COMPOUND
Authors: MAERCKER A. , BSATA M. , BUCHMEIER W. , ENGELEN B.
Published: May 2016

Ausgangsprodukte für die Darstellung der Titelverbindung (VI) sind die Verbindungen (II), (III) und (V), deren Darstellung beschrieben ist.
ChemInform Abstract: SYNTHESIS AND CRYSTALLOGRAPHIC CHARACTERIZATION OF AN UNSOLVATED, MONOMERIC SAMARIUM BIS(PENTAMETHYLCYCLOPENTADIENYL) ORGANOLANTHANIDE COMPLEX, (C5ME5)2SM
Authors: EVANS W. J. , HUGHES L. A. , HANUSA T. P.
Published: May 2016

Die Titelverbindung (I) ist durch Sublimation bei 85°C aus seinem Bis‐[THFJ‐Addukt erhältlich, das bei der Aufarbeitung des Reaktionsproduktes aus Sm‐Dampf und Cyclopentadien in THF entsteht.
ChemInform Abstract: CRYSTAL AND MOLECULAR STRUCTURE OF DICHLOROBIS(η5‐TERT‐BUTYLCYCLOPENTADIENYL)TITANIUM(IV)
Authors: HOWIE R. A. , MCQUILLAN G. P. , THOMPSON D. W.
Published: May 2016

Die Röntgenstrukturanalyse der bekannten, im Titel genannten Verbindung (I) zeigt, daß die beiden tert.‐Butylgruppen im Molekül in entgegengesetzter Position liegen.
ChemInform Abstract: AN UNUSUAL REACTION OF TETRAPHENYLCYCLOPENTADIENYL DERIVATIVES OF THE GROUP IVA ELEMENTS WITH ISOPROPYLIDENETRIPHENYLPHOSPHORANE
Authors: BORISOVA I. V. , LUZIKOV YU. N. , ZEMLYANSKY N. N. , USTYNYUK YU. A. , BELETSKAYA I. P.
Published: May 2016

Die Tetraphenylcyclopentadienyl‐german‐, ‐silan‐ oder stannan‐Derivate (II) reagieren mit Isopropylidentriphenylphosphoran (III) unter Demetallierung zu den Salzen (IV) und unter Deprotonierung zu den Salzen (I).
ChemInform Abstract: SYNTHESIS AND CHARACTERIZATION OF COMPLEXES OF THIOMOLYBDATES AND THIOTUNGSTATES WITH COPPER(I) AND SILVER(I) CYANIDES, INCLUDING MOLYBDENUM‐95 AND TUNGSTEN‐183 NMR PROPERTIES AND THE CRYSTAL AND MOLECULAR STRUCTURES OF (N‐PR4N)2((CN)CUS2MOS2), (N‐PR4N)2((CN)AGS2WS2), AND (PH4AS)2((CN)CUS2MOS2CU(CN)).H2O
Authors: GHELLER S. F. , HAMBLEY T. W. , RODGERS J. R. , BROWNLEE R. T. C. , O'CONNOR M. J. , SNOW M. R. , WEDD A. G.
Published: May 2016

Das Polymere (NH4)CuMoS4 wird durch wäßrige CN‐Lösung gespalten; nach Zugabe quaternärer Kationen kann (Ia) als Salz isoliert werden.
ChemInform Abstract: REDUCTION OF RHENIUM(VII) OXIDE BY TRIETHYLPHOSPHINE
Authors: JOHNSON J. W. , BRODY J. F. , ANSELL G. B. , ZENTZ S.
Published: May 2016

Die Titelreduktion in Gegenwart von Pyridinen führt zu den gemischt‐wenigen Re" Re7 ‐Salzen (I).
ChemInform Abstract: PENTAMETHYLCYCLOPENTADIENYL TRANSITION‐METAL COMPLEXES. 7. ELECTROCHEMISTRY OF TRANSITION‐METAL Π‐COMPLEXES. 7. CYCLOPENTADIENYL (ARENE)COBALT CATIONS: PREPARATION, ELECTROCHEMICAL REDUCTION, AND SPECTROSCOPIC INVESTIGATION OF THE PARAMAGNETIC D7 MONOCATIONS
Authors: KOELLE U. , FUSS B. , RAJASEKHARAN M. V. , RAMAKRISHNA B. L. , AMMETER J. H. , BOEHM M. C. +
Published: May 2016

Die Cyclopentadienylaren‐Komplexe (I) und (II) werden auf drei verschiedenen Wegen wie aufgezeichnet synthetisiert: durch die bekannte oxidative Additions‐Ringerweiterungsreaktion ausgehend von den Cobaltocenen (III) bzw. (IV) (Bildung von (Ia) bzw. (IIc,d)), durch Aren‐Aus‐ tausch in Trifluoressigsäure (Darstellung von (lb,d)) bzw. durch AlClykatalysierten Halogenid‐Aren‐Austausch im Halogenid‐verbrückten Dimeren (V) (Bildung von (IIa,b,d)).
ChemInform Abstract: ISOLATION AND CHARACTERIZATION OF (PNP)2CO(CN)4, AN UNUSUAL SQUARE‐PLANAR TETRACYANOCOBALT(II) COMPLEX
Authors: CARTER S. J. , FOXMAN B. M. , STUHL L. S.
Published: May 2016

Wasserfreies CoClg reagiert mit 4 Äquivalenten Bis‐[triphenylphosphinl‐iminiumcyanid (PNP)CN in DMF zur monomeren Titelverbindung, der ersten low‐spin, quadratisch‐plana?ren Co(II)‐Verbindung mit nur einem einzi‐ 156 gen Typ von einzähnigem Liganden.
ChemInform Abstract: SOLVENT, TEMPERATURE, AND ELECTROLYTE STUDIES ON THE ELECTRON‐TRANSFER REACTION BETWEEN FERROCENE AND A COBALT CLATHROCHELATE
Authors: BORCHARDT D. , WHERLAND S.
Published: May 2016

Geschwindigkeitskonstanten und Aktivierungsparameter der Außensphären‐Reaktion zwischen der Co‐Verbindung [Co(A)3(BF)3] (H3A: Dimethylglyoxim) und Ferrocen wurden in Abhängig‐i keit von der Ferrocenkonzentration und der Temp. in MeCN, MezCO, PhNOg und CHQC′: bestimmt.
ChemInform Abstract: EXCHANGE INTERACTION IN MULTINUCLEAR TRANSITION‐METAL COMPLEXES. 5. THROUGH‐BOND EXCHANGE COUPLING IN CU2A(CH3COO)2.2CH3OH (A2‐ = ANION OF N,N′‐BIS(2‐((O‐HYDROXYBENZHYDRYLIDENE)AMINO)ETHYL)PIPERAZINE)
Authors: CHIARI B. , PIOVESANA O. , TARANTELLI T. , ZANAZZI P. F.
Published: May 2016

Der Titelkomplex (I) wurde durch Reaktion von Cu‐acetat mit dem freien Liganden (Darstellung mit 60% Ausb. beschrieben) in MeOH dargestellt.
ChemInform Abstract: COMPARISONS BETWEEN POLYPYRIDYL NITROSYL COMPLEXES OF OSMIUM(II) AND RUTHENIUM(II)
Authors: PIPES D. W. , MEYER T. J.
Published: May 2016

NitrosyI‐ und Nitro‐Komplexe (I) und (H) des Os und Ru werden hinsichtlich ihrer Eigenschaften (pH‐abhängige Gleichgewichtsreaktion von (I) zu (II) bzw. Kinetik der Disproportionierung von (II) zu (I), IR‐Daten, cyclisch‐voltammetrisch bestimmte Halbstufenpotentiale der Reduktionen am NitrosylIiganden) in äquivalenter Koordinationsumgebung verglichen.
ChemInform Abstract: A MODEL FOR THE CYANIDE FORM OF OXIDIZED CYTOCHROME OXIDASE: AN IRON(III)/COPPER(II) PORPHYRIN COMPLEX DISPLAYING FERROMAGNETIC COUPLING
Authors: GUNTER M. J. , BERRY K. J. , MURRAY K. S.
Published: May 2016

Der Chloroeisen(III)‐Komplex von meso‐a,a,a,a‐Tetrakis‐[o‐nicotinamidophe‐ nyl]‐porphyrin wird über sein Hydroxoderivat in den Cyanidkomplex übergeführt, der in Methanol mit Cu(ClO4)2 den Komplex (I) liefert.
ChemInform Abstract: ELECTROCHEMICAL CHARACTERIZATION OF SIX‐COORDINATE NITROSYL Σ‐BONDED IRON‐PHENYLPORPHYRINS
Authors: KADISH K. M. , LANCON D. , COCOLIOS P. , GUILARD R.
Published: May 2016

Die elektrochemische Oxidation und Reduktion der durch Umsetzung der Phenylporphyrinatoeisen(III)‐Derivate mit NO‐Gas erhaltenen sechsfach‐koordinierten Komplexe (I) werden an einer Pt‐Elektrode in Acetonitril untersucht.
ChemInform Abstract: NOVEL CYCLOPENTA(C)BENZOFURAN INTERMEDIATES FOR THE SYNTHESIS OF ACORANE‐ALASKANE SESQUITERPENES: TOTAL SYNTHESIS OF (.+‐.)‐β‐ACORENOL AND (.+‐.)‐ACORENONE
Authors: IWATA C. , NAKAMURA S. , SHINOO Y. , FUSAKA T. , KISHIMOTO M. , UETSUJI H. , MAEZAKI N. , TANAKA T.
Published: May 2016

Die Cyclohexadienoncarbonsäureester (I) reagieren mit Methyllithium zu den Diolen (II), deren Cyclisierung die Ether (III) liefert.
ChemInform Abstract: CARBETHOXYALLYLATION USING RADICAL CHEMISTRY
Authors: BARTON D. H. R. , CRICH D.
Published: May 2016

ZZ‐Carbethoxy‐l ,3‐dibrom‐propan (Ia) führt mit einem Mol tert.‐Butylthiol und Pottasche im wesentlichen zum Acrylsäureester (II) neben geringen Mengen des Disubstitutionsproduktes (Ib).
ChemInform Abstract: SYNTHETIC STUDIES ON CELL‐SURFACE GLYCANS, PART XXVIII. SYNTHESIS OF α‐ AND β‐(2 → 9)‐LINKED DISIALYLGLYCEROLIPIDS
Authors: OGAWA T. , SUGIMOTO M.
Published: May 2016

Die Glykosidierung des Glycerinderivats (II) mit dem Chlorid (I) führt zu einem Gemisch des Glykosids (IIIa) mit dem entsprechenden Anomeren.
ChemInform Abstract: THE SYNTHESIS OF 1,2:5,6‐DI‐O‐ISOPROPYLIDENE‐D‐MANNITOL: A COMPARATIVE STUDY
Authors: KUSZMANN J. , TOMORI E. , MEERWALD I.
Published: May 2016

Bei der Acetalisierung von D‐Mannitol (I) nach verschiedenen Methoden werden, abhängig von der Reaktionszeit, Gemische der Mono‐ (IIa)‐(llc), Di‐ (lld), (‐lIe) und Triacetale (IIf) und (Ilg) mit unterschiedlicher Zusammensetzung erhalten.
ChemInform Abstract: REGIOSPECIFIC TOTAL SYNTHESIS OF (.+‐.)‐NANAOMYCIN A USING PHTHALOYLCOBALT COMPLEXES
Authors: SOUTH M. S. , LIEBESKIND L. S.
Published: May 2016

Regiospecific Total Synthesis of (±)‐Nanaomycin A Using Phthaloylcobalt Complexes.
ChemInform Abstract: THE THERMAL STABILITY OF BINARY ALKALI METAL NITRATES
Authors: ABE O. , UTSUNOMIYA T. , HOSHINO Y.
Published: May 2016

Die thermische Stabilität von V festen und flüssigen Lösungen der binären Systeme des NaNO3 mit anderen Alkalimetallnitraten wird mit Hilfe der DSC (Zustandsdiagramme) sowie durch simultane TG, DTA, DTG und EGA‐Messungen untersucht.
ChemInform Abstract: CARBONYL COMPOUNDS AS CORROSION INHIBITORS FOR MILD STEEL IN HYDROCHLORIC ACID SOLUTIONS
Authors: DESAI M. N. , DESAI M. B.
Published: May 2016

Für Schmiedeeisen lSS‐l079 (0.5% Mg, 0.5% C) in HCl‐Lösungen von l‐6 N wurden die besten lnhibitoreigenschaften für Furfuraldehyd (98% Inhibitorwirkung bei 0.42 mol/l) und Cyclohexanon (97% bei 0.40 mol/l) ermittelt (galvanostatische und gravimetrische Messungen; Vgl.
ChemInform Abstract: MECHANISTIC INVESTIGATION OF OXIDATION OF NITROUS ACID BY 12‐TUNGSTOCOBALTATE(III) ANIONS IN AQUEOUS PERCHLORIC ACID
Authors: AYOKO G. A. , OLATUNJI M. A.
Published: May 2016

Die Oxidation von Salpetriger Säure gemäß Reaktion A läuft nach einer Kinetik 2. Ordnung ab; 1. Ordnung bez. [HNO2] und 1. Ordnung bez. [Oxidationsmittel].
ChemInform Abstract: STRUCTURAL EVOLUTION WITHIN A SERIES OF HYDRATED BIS(DITHIOOXALATO)NICKELATE(II) OF RARE EARTHS (RE)2(H2O)2NNI3(S2C2O2)6, XH2O
Authors: TROMBE J. C. , GLEIZES A. , GALY J.
Published: May 2016

Die neutralen zentrosymm.
ChemInform Abstract: CHEMORECEPTION BY AN EXCITABLE LIQUID MEMBRANE: CHARACTERISTIC EFFECTS OF ALCOHOLS ON THE FREQUENCY OF ELECTRICAL OSCILLATION
Authors: YOSHIKAWA K. , MATSUBARA Y.
Published: May 2016

Eine ölige Membran, die Pikrinsäure und Nitrobenzol enthält, trennt eine wäßrige Lösung von Cety trimethylammoniumbromid (CTA‐bromid) und Alkylalkoholen von einer wäßrigen Rohrzukkerlösung.
ChemInform Abstract: GENERAL ACID‐CATALYZED ADDITION OF ANILINES TO DICYANAMIDE ION THROUGH A CONCERTED MECHANISM
Authors: HILL S. V. , LONGRIDGE J. L. , WILLIAMS A.
Published: May 2016

Die säurekatalysierte Addition von Anilinen (I) an Dicyanamid (II) zu (III) wird in Relation zu den Substituenten untersucht und diskutiert, und die kinetischen Daten werden bestimmt.
ChemInform Abstract: REACTION OF DIAZOALKANES WITH UNSATURATED COMPOUNDS. 2. CYCLOPROPANATION OF OLEFINS WITH DIAZOMETHANE CATALYZED BY PALLADIUM COMPOUNDS
Authors: TOMILOV YU. V. , BORDAKOV V. G. , DOLGII I. E. , NEFEDOV O. M.
Published: May 2016

(IV) untersucht.
ChemInform Abstract: EXCITED‐STATE CHEMISTRY OF A 1,5‐BIRADICAL: LASER‐INDUCED EJECTION OF A 1,3‐BIRADICAL
Authors: SCAIANO J. C. , WAGNER P. J.
Published: May 2016

Bei einer l0minütigen intensiven Laser‐Anregung (6000 Impulse) der Acetophenone (I) und(VI) kommt es durch 2‐Photonenprozesse zur Bildung und Anregung von 1,5‐Biradikalen wie (II) (Lebensdauer über l0′5s), die zur Entstehung der Produkte (III)‐(V) bzw, (IV) und (VII)‐(lX) neben den entsprechenden Z‐Phenyl‐Zindanolen führen mit Gemischausb.