bluuebunny/crossref_metadata_2025 huggingface dataset:
Compatibility, rheological, and thermal properties of the melt blends of PEN (HQ/PP) with PEN (HQ/RS)
Authors: Li Cao , Gao Nian , Liu Xiaobo
Published: February 2008

Two kinds of polyarylene ether nitriles (PEN) copolymers PEN (HQ/PP) and PEN (HQ/RS) were synthesized using 2,6‐dicholorobenzonitrile (DCBN) with equal molar of phenolphthalein (PP) and hydroquinone (HQ), DCBN with equal molar of HQ and resorcin (RS), respectively. The melt‐mixed blends of two PENs over the complete composition range were characterized by dynamic mechanical analyses (DMA), tensile testing, scanning electronic microscopy (SEM), and capillary rheometer test for their compatibility, thermal, mechanical, and melt flow properties study. DMA show a considerable compatibility between the two PENs. Morphology examinations reveal good component dispersion and strong interface adhesion. The capillary rheometer test found that the blending of PEN (HQ/RS) enhanced the fluidity of the PEN (HQ/PP)/PEN (HQ/RS) blends by reducing its viscosity, which is beneficial to the processability of PEN (HQ/PP). © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Effect of the composition of α‐MSAN copolymer on the miscibility of PVC/α‐MSAN blends
Authors: Zhang Lixia , Sun Shulin , Ren Liang , Zhang Fangfang , Zhang Mingyao , Zhang Huixuan
Published: February 2008

A series of α‐methylstyrene, styrene, and acrylonitrile (α‐MSAN) copolymers with different acrylonitrile (AN) contents were synthesized by altering α‐MSt, St, and AN ratios with emulsion copolymerization method. By melt‐blending these copolymers with PVC resin and di‐isooctyl phthalate (DOP), PVC/α‐MSAN, and PVC/α‐MSAN/DOP blends were prepared. The miscibility and morphology of the blends were investigated by dynamic mechanical analysis (DMA) and scanning electron microscopy. The PVC is immiscible with SAN by melt‐mixing, whereas PVC is miscible with α‐MSAN (α‐MSt/St = 1/1) if AN weight percent is within the window range of 20–25 wt %, and α‐MSAN (not containing St) with 35 wt % AN is miscible with PVC even when they are blended by melt‐mixing. Replacement of styrene with α‐methylstyrene widens the miscibility window with PVC. The miscibility of PVC/α‐MSAN blends is substantially improved with the increasing α‐MSt content in α‐MSAN copolymer containing identical AN content. When DOP was introduced into the PVC/α‐MSAN (α‐MSt/St = 1/1) blends, a single tan δ peak over room temperature in DMA detection is found as AN content in α‐MSAN copolymer is within the range of 15–25 wt %, and SEM observation also shows that the blends are homogeneous. When the AN content in α‐MSAN copolymer is over 35 wt %, the presence of DOP causes the phase domain extended. The phase domain size of the PVC/α‐MSAN/DOP blends intensively depends on AN content in α‐MSAN copolymer. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Structural characteristics and selected properties of polyacrylonitrile nanofiber mats
Authors: Borhani Sedigheh , Hosseini Seyed Abdolkarim , Etemad Seyed Gholamreza , Militký Jiří
Published: February 2008

In electrospinning, the structure of nanofibers, which is affected by polymer solution parameters and processing conditions, influences the physical characteristics of nanofiber mats. In this study, under optimum conditions of electrospinning, the concentration of polyacrylonitrile (PAN) was changed from 11 to 15 wt %, and its effects on the nanofiber diameter and surface porosity of nanofiber mats were studied. The results showed that increasing the PAN polymer concentration enhanced the nanofiber diameter but reduced the surface porosity of nanofiber mats. Because the diameter and surface porosity are parameters that possess mutual effects, a structural parameter (Q) was introduced, and then its relation to some of the physical characteristics, such as the air permeability and surface roughness, was investigated. To evaluate the surface roughness, atomic force microscopy (AFM) and entropy (ENT) methods were used. The surface roughness of nanofiber mats was measured by AFM in a surface noncontact mode and by ENT with an image analysis technique and co‐occurrence matrix. The correlation coefficient of the surface roughness obtained from these two methods was 94%. The results also present a strong dependence between Q and the surface roughness and air permeability of nanofiber mats. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Cryostructuring of polymer systems. XXIX. Preparation and characterization of supermacroporous (spongy) agarose‐based cryogels used as three‐dimensional scaffolds for culturing insulin‐producing cell aggregates
Authors: Lozinsky Vladimir I. , Damshkaln Lilija G. , Bloch Konstantin O. , Vardi Pnina , Grinberg Natalia V. , Burova Tatiana V. , Grinberg Valerij Y.
Published: February 2008

Supermacroporous (spongy) agarose‐based cryogels were prepared by a two‐step freezing procedure (freezing at −30°C followed by incubation at a warmer subzero temperature) and subsequent thawing. The cryogels were formed as cylinders in plastic syringes and as platelike samples in flat metal molds. The characteristic feature of the gel matrices thus obtained was their heterogeneous spongelike morphology with a system of interconnected gross (50–250‐μm and larger) pores. The influence of the cryogenic processing regimes on the properties and porous morphology of such agarose cryogels was explored by flow‐through analysis, optical microscopy, thermometry, and high‐sensitivity differential scanning calorimetry. These biocompatible, spongelike matrices were used as three‐dimensional scaffolds for culturing insulin‐producing rat insulinoma cells self‐assembled in multicellular spherical aggregates (pseudoislets). The cell morphology and functional activity of such pseudoislets indicate that supermacroporous agarose‐based cryogels can be useful as a tool for engineering biohybrid insulin‐producing tissue. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Preparation of temperature‐sensitive poly(N‐isopropylacrylamide)/β‐cyclodextrin‐grafted polyethylenimine hydrogels for drug delivery
Authors: Zhang Jian‐Tao , Xue Ya‐Nan , Gao Fa‐Zhi , Huang Shi‐Wen , Zhuo Ren‐Xi
Published: February 2008

In this study, novel thermally sensitive semi‐interpenetrating polymeric network hydrogels composed of poly(N‐isopropylacrylamide) (PNIPAAm) and β‐cyclodextrin‐grafted polyethylenimine were prepared by radical polymerization. Compared to normal PNIPAAm hydrogels, the semi‐interpenetrating network hydrogels had a higher swelling ratio at room temperature and exhibited faster shrinking kinetics when the temperature was elevated to above the lower critical solution temperature. Propranolol as a model drug was loaded into the gels, and the release results show that compared to that of the normal PNIPAAm hydrogel, the release time of propranolol from the cyclodextrin‐containing gel was prolonged. These improved drug‐release properties may have been due to the formation of inclusion complexes between the drug molecules and cyclodextrin groups. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Photostability of isotactic polypropylene containing monoazo pigment
Authors: Ahmadi Zahra , Kish Mohammad Haghighat , Freeman Harold , Kotek Richard , Katbab Ali Asghar
Published: February 2008

The photodegradation of isotactic polypropylene (PP) films containing a monoazo pigment and hindered amine light stabilizers (HALS) has been undertaken. PP films were exposed to medium pressure mercury lamp radiation in the laboratory for periods of up to 8 weeks and the degree of degradation (oxidation/deterioration) was examined using FTIR spectroscopy and differential scanning calorimetry (DSC) as well as by measuring changes in the mechanical properties, contact angle, and density. The results of these measurements indicate that unstabilized PP films degraded after only 240‐h irradiation. By adding an organic pigment to PP films along with antioxidant and HALS, the photostability of PP films increased to the 1500‐h level. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Investigation of the water and fuel exposure characteristics of aircraft fuel tank sealants and the effect on their glass transition temperature
Authors: Giannis S. , Adams R. D. , Clark L. J. , Taylor M. A.
Published: February 2008

The water and fuel absorption and desorption characteristics have been studied of aircraft fuel tank sealants. The sealants were an epoxy‐cured polythioether and a MnO2‐cured polysulphide. The effect of the water and fuel exposure on the glass transition temperature was also investigated. Water diffusion was found to be Fickian for the polythioether sealant and the equilibrium plateau level was found not to be dependent on the immersion temperature. On the other hand, the polysulphide sealant demonstrated a clear non‐Fickian water uptake characteristic, with large uptake levels, which were attributed to water droplet formation in the volume of the bulk sealant. The glass transition temperature of the polythioether sealant was not affected by the presence of water (∼ 4% by weight) while that of the polysulphide was increased by ∼ 8°C for a water uptake level of ∼ 50% by weight. Fuel absorption followed a very similar trend for both sealants with the weight gain demonstrated an early maximum followed by a subsequent weight decrease, indicating leaching of fuel soluble fractions, until equilibrium was reached. The presence of fuel acted as plasticizer for the sealants; depressing their glass transition temperature by ∼ 10°C. Tests on dried samples have shown that the effect on the glass transition temperature was reversible. © 2008 Wiley Periodicals, Inc. J Appl Polym Sci, 2008
Proteomic analysis to characterize differential mouse strain sensitivity to cadmium‐induced forelimb teratogenesis
Authors: Chen Haiyan , Boontheung Pinmanee , Ogorzalek Loo Rachel R. , Xie Yongming , Loo Joseph A. , Rao Jian‐yu , Collins Michael D.
Published: February 2008

BACKGROUND:

Cadmium ion (Cd2+) is a ubiquitous environmental contaminant, and it is a potent teratogen in mice. An intraperitoneal dose of 4 mg/kg of CdCl2 at gestational day 9 causes forelimb ectrodactyly in the C57BL/6N mouse strain, but the SWV/Fnn strain is resistant. The objective of this study was to identify differentially displayed proteins in two target tissues for cadmium teratogenesis, and to derive hypotheses regarding the mechanisms involved in the murine strain difference in Cd‐induced forelimb ectrodactyly.

METHODS:

The global proteomics strategy used two‐dimensional polyacrylamide gel electrophoresis for protein separation, and MALDI‐TOF‐MS and LC‐MS/MS for protein identification, to compare and identify proteins in forelimb buds and yolk sacs from the two mouse strains following Cd administration.

RESULTS:

More than 1,000 protein spots were detected by two‐dimensional polyacrylamide gel electrophoresis in day 10.0 mouse forelimb buds and yolk sacs. Thirty‐eight proteins had identifiable differences in abundance levels in Cd‐treated forelimb buds between the two strains. Of those 38 proteins, 14 could be associated with the unfolded protein response process and seven are associated with actin polymerization. The proteins that were found to be differentially abundant between the strains in yolk sacs that were exposed to CdCl2 were predominantly different than the proteins detected differentially in the limb buds of the two strains with an overlap of approximately 20%.

CONCLUSIONS:

These patterns of differentially displayed proteins rationalize a hypothesis that the differential murine strain response to cadmium‐induced forelimb ectrodactyly is due to differences in their pathways for the unfolded protein response and/or actin polymerization. Birth Defects Research (Part A), 2008. © 2008 Wiley‐Liss, Inc.
Increasing therapeutic exercise participation by individuals with acquired brain injury using self‐recording and reinforcement
Authors: Maki Amber L. , Rudrud Eric H. , Schulze Kim A. , Rapp John T.
Published: February 2008

The purpose of this study was to evaluate the effects of self‐recording and contingent reinforcement on exercise participation by four adults with acquired brain injury. The results indicate that self‐recording and contingent reinforcement increased participation in stretching, aerobic, and weight‐lifting activities for each participant. The results also indicate that each participant was able to accurately self‐record his or her exercise participation. Possible operant conceptualizations for the observed behavior change, as well as limitations to the results, are briefly discussed. Copyright © 2008 John Wiley & Sons, Ltd.
Clinical outcome and long-term survival in 118 consecutive patients with neuroendocrine tumours of the pancreas
Authors: Fischer L , Kleeff J , Esposito I , Hinz U , Zimmermann A , Friess H , Büchler M W
Published: February 2008

Background

The aim was to assess the clinical relevance of the World Health Organization and tumour node metastasis (TNM) classifications in patients with pancreatic neuroendocrine tumours (pNETs).

Methods

Prospectively collected data from 118 consecutive patients with a pNET receiving surgical intervention were analysed.

Results

Forty-one patients had well differentiated neuroendocrine tumours, 64 had well differentiated neuroendocrine carcinomas and 13 had poorly differentiated neuroendocrine carcinomas. Five-year survival rates were 95, 44 and 0 per cent respectively (P < 0·001). There was no difference in survival after R0 and R1/R2 resections in patients with neuroendocrine carcinomas (P = 0·905). In those with well differentiated neuroendocrine carcinomas, any resection and having a clinically non-functional tumour significantly increased survival (P = 0·003 and P = 0·037 respectively). The TNM stage was I in 37 patients, II in 15 patients, III in 32 patients and IV in 34 patients. There were significant differences in 5-year survival between stage I and II (88 and 85 per cent respectively) and stage III and IV (31 and 42 per cent respectively) (P = 0·010).

Conclusion

Both classifications accurately reflect the clinical outcome of patients with pNET. The resection status may not be critical for long-term survival in patients with pNET.
Child welfare workers' practice in cases involving domestic violence
Authors: Bourassa Chantal , Lavergne Chantal , Damant Dominique , Lessard Geneviève , Turcotte Pierre
Published: February 2008

This paper reports the findings of an exploratory and qualitative study of child welfare workers' practice in cases involving domestic violence. The research aimed to focus on child welfare workers' interventions with families experiencing domestic violence, elements influencing the child welfare workers' decisions, and the factors facilitating and creating obstacles for intervention. An analysis of the qualitative data showed that child welfare workers have different ways of intervening in cases involving domestic violence. Also, the interventions were especially centred on women victims of violence and they were held responsible for protecting their children. Finally, the dilemmas and difficulties which child welfare workers face in these cases are discussed. Copyright © 2008 John Wiley & Sons, Ltd.
Trends in US Army child maltreatment reports: 1990–2004
Authors: McCarroll James E , Fan Zizhong , Newby John H , Ursano Robert J
Published: February 2008

We present the victim rates and severity of child maltreatment in US Army families by the sex of the child and parent from 1990–2004. Neglect rates decreased from a high point in 1991 to a low in 2000, but by 2004 the rates had increased to about the 1991 level. During two large‐scale deployments of the US Army to the Middle East (1991 and 2002–2004), the rates of neglect increased. Neglect rates were highest for the youngest children and decreased as age increased. Physical abuse rates decreased from 1990–2004, but the decline was slowed during 2001–04. Physical abuse was more severe by male offenders.

Emotional abuse showed wide fluctuations in rates. Emotional abuse rates were similar for boys and girls up to age 11, but the rates for older girls were higher. Sexual abuse had the lowest rates throughout the time of this report, decreasing from about 0.5/1000 to about 0.1/1000. The rates of physical abuse and neglect were generally higher for boys than for girls up to the teenage years when the rates reversed. Male offenders were more likely to maltreat children (even excluding sexual abuse) than were female offenders and offenders of both sexes were more likely to abuse male children. We provide suggestions for practice, prevention and research in child maltreatment. Published in 2008 by John Wiley & Sons, Ltd.
[Ru(bpy)3]2+‐Doped Silica Nanoparticles within Layer‐by‐Layer Biomolecular Coatings and Their Application as a Biocompatible Electrochemiluminescent Tag Material
Authors: Wei Hui , Liu Jifeng , Zhou Lingling , Li Jing , Jiang Xiue , Kang Jianzhen , Yang Xiurong , Dong Shaojun , Wang Erkang
Published: February 2008

[Ru(bpy)3]2+‐doped silica (RuSi) nanoparticles were synthesized by using a water/oil microemulsion method. Stable electrochemiluminescence (ECL) was obtained when the RuSi nanoparticles were immobilized on a glassy carbon electrode by using tripropylamine (TPA) as a coreactant. Furthermore, the ECL of the RuSi nanoparticles with layer‐by‐layer biomolecular coatings was investigated. Squential self‐assembly of the polyelectrolytes and biomolecules on the RuSi nanoparticles gave nanocomposite suspensions, the ECL of which decreased on increasing the number of bilayers. Moreover, factors that affected the assembly and ECL signals were investigated. The decrease in ECL could be assigned to steric hindrance and limited diffusion of the coreactant molecules in the silica matrix after they were attached to the biomolecules. Since surface modification of the RuSi nanoparticles can improve their biocompatibility and prevent leaking of the [Ru(bpy)3]2+ ions, the RuSi nanoparticles can be readily used as efficient and stable ECL tag materials in immunoassay and DNA detection.
Catalytic Asymmetric Aziridination with Borate Catalysts Derived from VANOL and VAPOL Ligands: Scope and Mechanistic Studies
Authors: Zhang Yu , Desai Aman , Lu Zhenjie , Hu Gang , Ding Zhensheng , Wulff William D.
Published: February 2008

An extended study of the scope and mechanism of the catalytic asymmetric aziridination of imines with ethyl diazoacetate mediated by catalysts prepared from the VANOL and VAPOL ligands and triphenylborate is described. Nonlinear studies with scalemic VANOL and VAPOL reveal an essentially linear relationship between the optical purity of the ligand and the product suggesting that the catalyst incorporates a single molecule of the ligand. Two species are present in the catalyst prepared from B(OPh)3 and either VANOL or VAPOL as revealed by 1H NMR studies. Mass spectral analysis of the catalyst mixture suggests that one of the species involves one ligand molecule and one boron atom (B1) and the other involves one ligand and two boron atoms (B2). The latter can be formulated as either a linear or cyclic pyroborate and the 11B NMR spectrum is most consistent with the linear pyroborate structure. Several new protocols for catalyst preparation are developed which allow for the generation of mixtures of the B1 and B2 catalysts in ratios that range from 10:1 to 1:20. Studies with catalysts enriched in the B1 and B2 species reveal that the B2 catalyst is the active catalyst in the VAPOL catalyzed asymmetric aziridination reaction giving significantly higher asymmetric inductions and rates than the B1 catalyst. The difference is not as pronounced in the VANOL series. A series of 12 different imines were surveyed with the optimal catalyst preparation procedure with the finding that the asymmetric inductions are in the low to mid 90s for aromatic imines and in the mid 80s to low 90s for aliphatic imines for both VANOL and VAPOL catalysts. Nonetheless, the crystallinity of the N‐benzhydryl aziridines is such that nearly all of the 12 aziridine products screened can be brought to >99 % ee with a single recrystallization.
Synthesis and Biological Evaluation of Cruentaren A Analogues
Authors: Vintonyak Viktor V. , Calà Marcellino , Lay Frank , Kunze Brigitte , Sasse Florenz , Maier Martin E.
Published: February 2008

The complex macrolide cruentaren A is a highly selective and potent inhibitor of F‐ATPase (F‐type adenosine triphosphatase). As it shows some resemblance to benzolactone enamides like apicularen A, it was of interest to perform some structure–activity studies to delineate the key functional groups that are responsible for the activity. Building upon our previously developed route to cruentaren A, which is based on a ring‐closing alkyne metathesis reaction (RCAM), several cruentaren analogues were prepared. Replacement of the 3‐hydroxy hexanoic part with acids that lack the hydroxy group function resulted in a significant drop in cytotoxicity and F‐ATPase inhibition. Furthermore, two enamide analogues 23 and 50 were synthesized. However, these compounds were only cytotoxic in the micromolar range. Under the conditions for cleavage of the C3 aromatic methyl ether, the enamide function was transformed to the corresponding oxazinanone, resulting in analogues 25 and 52.
Asymmetric Friedel–Crafts Alkylation of Indoles with Methyl (E)‐2‐Oxo‐4‐aryl‐3‐butenoates Catalyzed by Sc(OTf)3/pybox
Authors: Desimoni Giovanni , Faita Giuseppe , Toscanini Marco , Boiocchi Massimo
Published: February 2008

The asymmetric Friedel–Crafts reaction between a series of substituted indoles 2 a–l and methyl (E)‐2‐oxo‐4‐aryl‐3‐butenoates 3 a–c has been efficiently catalyzed by the scandium(III) triflate complex of (4′S,5′S)‐2,6‐bis[4′‐(triisopropylsilyl)oxymethyl‐5′‐phenyl‐1′,3′‐oxazolin‐2′‐yl]pyridine (pybox; 1). Substituted 4‐(indol‐3‐yl)‐2‐oxo‐4‐arylbutyric acid methyl esters 4 a–n were usually formed in excellent yields and the enantioselectivity was up to 99 % ee, irrespective of the electronic character of the substituent and its location on the indole ring, albeit with the exclusion of position 2. The adducts could be obtained as stable enol tautomers and the equilibrium with the keto structure is discussed. The X‐ray crystal structure determination of 4 m indicated the 4R absolute configuration, thus confirming the proposal of Jørgensen for 4 i. The sense of the stereoinduction can be rationalized by the same octahedral complex 5 between 3, pybox 1, and scandium triflate already proposed for the Diels–Alder/hetero‐Diels–Alder and the Mukaiyama–aldol reactions of pyruvates.
Bis(BF2)‐2,2′‐Bidipyrrins (BisBODIPYs): Highly Fluorescent BODIPY Dimers with Large Stokes Shifts
Authors: Bröring Martin , Krüger Robin , Link Stephan , Kleeberg Christian , Köhler Silke , Xie Xiulian , Ventura Barbara , Flamigni Lucia
Published: February 2008

Four new dimeric bis(BF2)‐2,2′‐bidipyrrins (bisBODIPYs), and their corresponding BODIPY monomers, have been prepared and studied with respect to their structural and photophysical properties. The solid‐state molecular structure of the dimers and the relative orientation of the subunits have been revealed by an X‐ray diffraction study, which showed that the molecules contain two directly linked BODIPY chromophores in a conformationally fixed, almost orthogonal arrangement. Two of the fluorine atoms are in close contact with each other and the 19F NMR spectra show a characteristic through‐space coupling in solution. The new chromophores all exhibit a clear exciton splitting in the absorption spectra with maxima at about 490 and 560 nm, and are highly luminescent with an intense emission band at around 640 nm. The Stokes shift, which is the difference between the maximum of the lowest‐energy absorption band and the maximum of the emission band, has a typical value of 5 to 15 nm for simple BODIPYs, whereas this value increases to 80 nm or more for the dimers, along with a slight decrease in fluorescence quantum yields and lifetimes. These properties indicate potential uses of these new fluorophoric materials as functional dyes in biomedical and materials applications and also in model compounds for BODIPY aggregates.
ChemInform Abstract: Van der Waals Complexes of Cu, Ag, and Au with Hydrogen Sulfide. The Bonding Character.
Authors: Granatier Jaroslav , Urban Miroslav , Sadlej Andrzej J.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structural Phase Stability Studies on MBeH3 (M: Li, Na, K, Rb, Cs) from Density Functional Calculations.
Authors: Vajeeston P. , Ravindran P. , Fjellvaag H.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Framework Compounds with Mobile LaIII Cations: Syntheses, Crystal Structures and Structural Dynamics of the Lanthanum(III) Iron(II) Sulfide Halides La53Fe12S90X3 (X: Cl, Br, I).
Authors: Braeunling Daniel , Leoni Stefano , Mills Allison M. , Ruck Michael
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: On the Crystal Structures of the Transition‐Metal(II) Dodecahydro‐closo‐Dodecaborate Hydrates Cu(H2O)5.5 [B12H12]×2.5H2O and Zn(H2O)6 [B12H12]×6H2O.
Authors: Tiritiris Ioannis , Schleid Thomas
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Structural Phase Transitions in Ag2Se (Naumannite).
Authors: Billetter Heinrich , Ruschewitz Uwe
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Pressure‐Driven Phase Transitions in NaBH4: Theory and Experiments.
Authors: Kim Eunja , et al. et al.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Novel Synthesis and Electrochemical Behavior of Layered LiNi0.5Mn0.5O2.
Authors: Xia Hui , Tang S. B. , Lu L.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Size‐Selective Photocatalytic Reactions by Titanium(IV) Oxide Coated with a Hollow Silica Shell in Aqueous Solutions.
Authors: Ikeda Shigeru , Kobayashi Hideyuki , Ikoma Yoshimitsu , Harada Takashi , Torimoto Tsukasa , Ohtani Bunsho , Matsumura Michio
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Niobium Oxide‐Supported Platinum Ultra‐Low Amount Electrocatalysts for Oxygen Reduction.
Authors: Sasaki K. , Zhang L. , Adzic R. R.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Manganese(II) Coordination Polymers [{Mn(tren)}(As2Se4)] and [{Mn(tren)}(As4Se7)] with Infinite Selenidoarsenate(III) Chains ∞1[AsSe2‐] and ∞1[As4Se72‐].
Authors: Kromm Anna , Sheldrick William S.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Characterization of Gd2 [Pt2(SO4)4(HSO4)2] (HSO4)2.
Authors: Arndt Annika , Wickleder Mathias S.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Eschenmoser—Claisen Rearrangement of Baylis—Hillman Adducts.
Authors: Kim Jeong Mi , Kim Sung Hwan , Kim Jae Nyoung
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Selective Reduction of Mono‐ and Disubstituted Olefins by NaBH4 and Catalytic RuCl3.
Authors: Sharma Pawan K. , Kumar Surender , Kumar Pawan , Nielsen Poul
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalytic Enantioselective Amination of Silyl Enol Ethers Using Chiral Dirhodium(II) Carboxylates: Asymmetric Formal Synthesis of (‐)‐Metazocine.
Authors: Anada Masahiro , Tanaka Masahiko , Washio Takuya , Yamawaki Minoru , Abe Takumi , Hashimoto Shunichi
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Tandem Bis‐aza‐Michael Addition Reaction of Amines in Aqueous Medium Promoted by Polystyrenesulfonic Acid.
Authors: Polshettiwar Vivek , Varma Rajender S.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Superior Effect of a π‐Acceptor Ligand (Phosphine—Electron‐Deficient Olefin Ligand) in the Negishi Coupling Involving Alkylzinc Reagents.
Authors: Luo Xiancai , Zhang Heng , Duan Hui , Liu Qiang , Zhu Lizheng , Zhang Tony , Lei Aiwen
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Solvent‐Controlled Highly Selective Bis‐ and Monoallylation of Active Methylene Compounds by Allyl Acetate with Palladium(0) Nanoparticle.
Authors: Ranu Brindaban C. , Chattopadhyay Kalicharan , Adak Laksmikanta
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Nickel(0) Triethyl Phosphite Complex Catalyzed Allylic Substitution with Retention of Regio‐ and Stereochemistry.
Authors: Yatsumonji Yasutaka , Ishida Yusuke , Tsubouchi Akira , Takeda Takeshi
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Olefinic Ester and Diene Ring‐Closing Metathesis Using a Reduced Titanium Alkylidene.
Authors: Iyer Karthik , Rainier Jon D.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Simple and Efficient MW‐Assisted Cleavage of Acetals and Ketals in Pure Water.
Authors: Procopio Antonio , Gaspari Marco , Nardi Monica , Oliverio Manuela , Tagarelli Antonio , Sindona Giovanni
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis and Inclusion Properties of Thiacalix[4]arene Tetraamides in Cone‐ and 1,3‐Alternate Conformation.
Authors: Rahman Shofiur , Begum Nazneen , Perez‐Casas Carol , Yoshizawa Akina , Yamato Takehiko
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Catalytic Deprotection of Acetals in Basic Solution with a Self‐Assembled Supramolecular “Nanozyme”.
Authors: Pluth Michael D. , Bergman Robert G. , Raymond Kenneth N.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Highly Enantioselective Carbonyl‐ene Reactions Catalyzed by a Hindered Silyl—Salen—Cobalt Complex.
Authors: Hutson Gerri E. , Dave Apurva H. , Rawal Viresh H.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Palladium‐Catalyzed Regio‐ and Enantioselective Allylic Alkylation of Bis Allylic Carbonates Derived from Morita—Baylis—Hillman Adducts.
Authors: Trost Barry M. , Brennan Megan K.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Gold‐Catalyzed Addition of Carbon Nucleophiles to Propargyl Carboxylates.
Authors: Amijs Catelijne H. M. , Lopez‐Carrillo Veronica , Echavarren Antonio M.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Direct α‐Oxytosylation of Carbonyl Compounds: One‐Pot Synthesis of Heterocycles.
Authors: John Oliver R. S. , Killeen Niall M. , Knowles Deborah A. , Yau Sze Chak , Bagley Mark C. , Tomkinson Nicholas C. O.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Mononitration of Aromatic Compounds via Their Nitric Acid Salts.
Authors: Zhang Pingsheng , Cedilote Miall , Cleary Thomas P. , Pierce Michael E.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enantioselective Iridium‐Catalyzed Imine Vinylation: Optically Enriched Allylic Amines via Alkyne—Imine Reductive Coupling Mediated by Hydrogen.
Authors: Ngai Ming‐Yu , Barchuk Andriy , Krische Michael J.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Evaluation of Phenylorganotellurium Compounds as Radical Precursors in Dialkylzinc‐Mediated Radical Addition to C=N Double Bonds.
Authors: Cougnon Fabien , Feray Laurence , Bazin Samantha , Bertrand Michele P.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Enantioselective Addition of Terminal Alkynes to Aldehydes Catalyzed by a Cu(I)—TRAP Complex.
Authors: Asano Yohsuke , Hara Kenji , Ito Hajime , Sawamura Masaya
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Ion Pairing Effects on the Regioselectivity of Arylic versus Benzylic C—O Bond Reductive Cleavage: Synthetic Applications.
Authors: Azzena Ugo , Dettori Giovanna , Mascia Ilaria , Pisano Luisa , Pittalis Mario
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Direct Carbon—Carbon Bond Formation via Soft Enolization: A Facile and Efficient Synthesis of 1,3‐Diketones.
Authors: Lim Daniel , Fang Fang , Zhou Guoqiang , Coltart Don M.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: New Strong Organic Acceptors by Cycloaddition of TCNE and TCNQ to Donor‐Substituted Cyanoalkynes.
Authors: Reutenauer Philippe , Kivala Milan , Jarowski Peter D. , Boudon Corinne , Gisselbrecht Jean‐Paul , Gross Maurice , Diederich Francois
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Multicomponent, Solvent‐Free Synthesis of β‐Aryl‐β‐mercapto Ketones Using Zirconium Chloride as a Catalyst.
Authors: Kumar Atul , Akanksha Akanksha
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Straightforward Synthesis of CF3‐Substituted Triarylethenes by Stereoselective Threefold Cross‐Coupling Reactions.
Authors: Takeda Youhei , Shimizu Masaki , Hiyama Tamejiro
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Copper‐Catalyzed Coupling Reactions of Alkenyl Halides with Alkynes in the Absence of Palladium and Ligand.
Authors: Shao Li‐Xiong , Shi Min
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Activation of 1,1‐Difluoro‐1‐alkenes with a Transition‐Metal Complex: Palladium(II)‐Catalyzed Friedel—Crafts‐Type Cyclization of 4,4‐(Difluorohomoallyl)arenes.
Authors: Yokota Misaki , Fujita Daishi , Ichikawa Junji
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Oxidative Carbon—Carbon Bond Formation via Silyl Bis‐enol Ethers: Controlled Cross‐Coupling for the Synthesis of Quaternary Centers.
Authors: Clift Michael D. , Taylor Carla N. , Thomson Regan J.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Palladium(II)‐Catalyzed Annulation of Alkynes with ortho‐Ester‐Containing Phenylboronic Acids.
Authors: Tsukamoto Hirokazu , Kondo Yoshinori
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis, Properties, and Structures of Difluoromethylene‐Bridged Coplanar p‐Terphenyl and Its Aryl‐Capped Derivatives for Electron‐Transporting Materials.
Authors: Ie Yutaka , Nitani Masashi , Aso Yoshio
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: An Efficient and Scalable Synthesis of Substituted Phenanthrenequinones by Intramolecular Friedel—Crafts Reaction of Imidazolides.
Authors: Yoshikawa Naoki , Doyle Austin , Tan Lushi , Murry Jerry A. , Akao Atsushi , Kawasaki Masashi , Sato Kimihiko
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Asymmetric Friedel—Crafts Alkylation of Methoxyfuran with Nitroalkenes Catalyzed by Diphenylamine‐Tethered Bis(oxazoline)—Zn(II) Complexes.
Authors: Liu Han , Xu Jiaxi , Du Da‐Ming
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Gold‐Catalyzed Cyclization of (ortho‐Alkynylphenylthio)silanes: Intramolecular Capture of the Vinyl—Au Intermediate by the Silicon Electrophile.
Authors: Nakamura Itaru , Sato Takuma , Terada Masahiro , Yamamoto Yoshinori
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Screening of Chiral Phosphines as Catalysts for the Enantioselective [3 + 2] Annulations of N‐Tosylimines with Allenic Esters.
Authors: Fleury‐Bregeot Nicolas , Jean Ludovic , Retailleau Pascal , Marinetti Angela
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
ChemInform Abstract: Synthesis of 1‐Alkyl‐3‐arylamino‐pyrrole‐2,5‐diones
Authors: Chepyshev S. V. , Mazurkevich Yu. N. , Lebed' O. S. , Prosyanik A. V.
Published: February 2008

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.