bluuebunny/crossref_metadata_2025_split huggingface dataset:
Palladium‐Catalyzed Directed para C−H Functionalization of Phenols
Authors: Patra Tuhin , Bag Sukdev , Kancherla Rajesh , Mondal Anirban , Dey Aniruddha , Pimparkar Sandeep , Agasti Soumitra , Modak Atanu , Maiti Debabrata 
Published: May 2016

AbstractVarious practical methods for the selective C−H functionalization of the ortho and recently also of the meta position of an arene have already been developed. Following our recent development of the directing‐group‐assisted para C−H functionalization of toluene derivatives, we herein report the first remote para C−H functionalization of phenol derivatives by using a recyclable silicon‐containing biphenyl‐based template. The effectiveness of this strategy was illustrated with different synthetic elaborations and by the synthesis of various phenol‐based natural products.
The Multiple Facets of Iodine(III) Compounds in an Unprecedented Catalytic Auto‐amination for Chiral Amine Synthesis
Authors: Buendia Julien , Grelier Gwendal , Darses Benjamin , Jarvis Amanda G. , Taran Frédéric , Dauban Philippe 
Published: May 2016

AbstractIodine(III) reagents are used in catalytic one‐pot reactions, first as both oxidants and substrates, then as cross‐coupling partners, to afford chiral polyfunctionalized amines. The strategy relies on an initial catalytic auto C(sp3)−H amination of the iodine(III) oxidant, which delivers an amine‐derived iodine(I) product that is subsequently used in palladium‐catalyzed cross‐couplings to afford a variety of useful building blocks with high yields and excellent stereoselectivities. This study demonstrates the concept of self‐amination of the hypervalent iodine reagents, which increases the value of the aryl moiety.
Synthesis and characterization of thermotropic liquid crystalline polyarylate with ether ether ketone segments in the main chain
Authors: Zeng Luxian , Li Ruosong , Chen Peng , Xu Jianjun , Liu Pengqing 
Published: May 2016

ABSTRACTA series of thermotropic liquid crystalline poly(ether ether ketone) arylates (PEEKARs) were synthesized by combining the synthetic oligomeric poly(ether ether ketone) with terminal acetoxyls (PEEK‐A) and oligomeric Polyester with terminal carboxyl (PES‐C). The structures of the synthesized monomers and oligomerics were characterized by Fourier transform infrared spectroscopy and 1H Nuclear magnetic resonance spectroscopy, which indicated that the products were successfully synthesized as designed, and three kinds of PEEKARs with different legend of polyester segments were synthesized. The morphologies and properties of PEEKARs were measured by differential scanning calorimetry, wide‐angle X‐ray diffraction, thermal gravimetric analysis and polarized optional microscopy. The results show that PEEKAR with the minimum polyester segments has the best crystallization properties, but the flowability of which is rather poor and the liquid crystal character is unobvious; meanwhile, PEEKAR with more polyester segments can form a thermotropic liquid crystal intermediate state, and PEEKAR with maximum polyester segments has a somewhat humble crystallization property; as the content of polyester segments increases, the crystal form of PEEKARs changes and the char yields at 600 °C is reduced. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43800.
Open‐cell polypropylene/polyolefin elastomer blend foams fabricated for reusable oil‐sorption materials
Authors: Wang Shusheng , Wang Kun , Pang Yongyan , Li Yang , Wu Fei , Wang Sui , Zheng Wenge 
Published: May 2016

ABSTRACTThe fabrication of high‐performance oil sorbents is of great significance for oil spill cleanup. The main objective of this study was to prepare open‐cell polypropylene/polyolefin elastomer (PP/POE) blend foams for fabrication of reusable sorbents for oil sorption. Open‐cell PP/POE blend foams were prepared via continuous‐extrusion foaming using supercritical carbon dioxide as the blowing agent. The interconnected open‐cell structure was characterized by scanning electron microscopy. The hydrophobicity and lipophilicity of PP/POE open‐cell foams were revealed by tests of contact‐angle measurement, water and cyclohexane sorption on the foam surface, CCl4 and cyclohexane sorption in water, and oil/water separation. Further, the sorption tests indicated that PP/POE blend foams showed larger oil‐uptake capacities than pure PP foams. In addition, cyclic compression tests showed that PP/POE open‐cell foams had excellent ductility and significantly improved recoverability compared to pure PP foams. In cyclic sorption–desorption tests, the sorption kinetics was studied in terms of capacity and saturation time, showing that PP/POE foams kept larger sorption capacities for 10 cycles, with larger sorption rates and good reusability. Based on the high open‐cell content, the good hydrophobic and oleophilic properties, the high oil‐sorption capacity, the improved recoverability, the large sorption rate, and the good reusability in cyclic oil‐sorption performance, the PP/POE open‐cell foams have shown promise as potential oil sorbents in applications for oil spill cleanup. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43812.
A Comparative Analysis of the Peptide Repertoires of HLA–DR Molecules Differentially Associated With Rheumatoid Arthritis
Authors: Scholz Erika , Mestre‐Ferrer Anna , Daura Xavier , García‐Medel Noel , Carrascal Montserrat , James Eddie A. , Kwok William W. , Canals Francesc , Álvarez Iñaki 
Published: May 2016

ObjectiveTo evaluate similarity of the peptide repertoires bound to HLA–DR molecules that are differentially associated with rheumatoid arthritis (RA), and to define structural features of the shared peptides.MethodsPeptide pools bound to HLA–DRB1*01:01, HLA–DRB1*04:01, and HLA–DRB1*10:01 (RA associated) and those bound to HLA–DRB1*15:01 (non–RA–associated) were purified and analyzed by liquid chromatography (LC) matrix‐assisted laser desorption ionization–time‐of‐flight mass spectrometry (MS) and LC–ion‐trap MS. Peptide pools from each allotype were compared in terms of size, protein origin, composition, and affinity (both theoretical and experimental with some peptides). Finally, 1 peptide sequenced from DR1, DR4, and DR10, but not from DR15, was modeled in complex with all 4 HLA–DRB1 molecules and HLA–DRB5*01:01.ResultsA total of 6,309 masses and 962 unique peptide sequences were compared. DR10 shared 29 peptides with DR1, 9 with DR4, and 1 with DR15; DR1 shared 6 peptides with DR4 and 9 with DR15; and DR4 and DR15 shared 4 peptides. The direct identification of peptide ligands indicated that DR1 and DR10 were the most similar molecules regarding the peptides that they could share. The peptides common to these molecules contained a high proportion of Leu at P4 and basic residues at P8 binding core positions.ConclusionThe degree of overlap between peptide repertoires associated with different HLA–DR molecules is low. The repertoires associated with DR1 and DR10 have the highest similarity among the molecules analyzed (∼10% overlap). Among the peptides shared between DR1 and DR10, a high proportion contained Leu4 and basic residues at the P8 position of the binding core.
Brief Report: A Prospective Open‐Label Phase IIa Trial of Tocilizumab in the Treatment of Polymyalgia Rheumatica
Authors: Lally Lindsay , Forbess Lindsy , Hatzis Christopher , Spiera Robert 
Published: May 2016

ObjectiveInterleukin‐6 (IL‐6) is a pivotal cytokine in the pathogenesis of polymyalgia rheumatica (PMR), yet the efficacy of IL‐6 blockade with tocilizumab (TCZ) for the treatment of PMR is unknown. The aim of this study was to assess the efficacy and safety of TCZ in newly diagnosed PMR.Methods. In a single‐center open‐label study, patients with newly diagnosed PMR who had been treated with glucocorticoids (GCs) for <1 month were treated monthly with intravenous (IV) TCZ 8 mg/kg for 1 year, with a rapid tapering of GCs according to standardized protocol. The primary end point was the proportion of patients in relapse‐free remission without GC treatment at 6 months. Secondary outcome measures included duration of GC use and cumulative GC dose. Patients were followed up for 15 months.ResultsTen patients were enrolled in the study. One patient withdrew after 2 months, leaving 9 patients in whom the primary end point was assessed. The primary end point of relapse‐free remission without GC treatment at 6 months was achieved by all 9 of these patients. All patients who received TCZ treatment were able to discontinue GCs within 4 months of study entry. The cumulative mean ± SD prednisone dose was 1,085 ± 301 mg and the total duration of GC exposure was 3.9 ± 0.9 months. Remission persisted without relapse, in all 9 patients, throughout the entire 15‐month study.ConclusionOur findings suggest that TCZ may be an effective, safe, and well‐tolerated treatment for newly diagnosed patients with PMR, with a robust steroid‐sparing effect.
Brief Report: Causes of Stillbirths in Women With Systemic Lupus Erythematosus
Authors: Vinet Évelyne , Genest Geneviève , Scott Susan , Pineau Christian A. , Clarke Ann E. , Platt Robert W. , Bernatsky Sasha 
Published: May 2016

ObjectiveThere are few precise or recent estimates of the risk or causes of stillbirths in women with systemic lupus erythematosus (SLE). Thus, we undertook the present study to examine causes of stillbirths in mothers with SLE versus those without SLE.MethodsThe Offspring of SLE Mothers Registry (OSLER) is a large population‐based cohort, identified through Quebec's health care databases (1989–2009), including all women who had ≥1 hospitalization for delivery after SLE diagnosis, and a randomly selected control group of women matched for age and year of delivery. We identified stillbirths and ascertained the cause of death as indicated on death certificates. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were calculated, and multivariate logistic regression analysis was performed to estimate the risk of stillbirth in women with SLE versus controls.ResultsIn our cohort, 509 women with SLE had 729 births, including 9 stillbirths, while 5,829 matched controls had 8,541 births, including 47 stillbirths. We observed more stillbirths in mothers with SLE than in controls (1.24% versus 0.55%, difference 0.69% [95% CI 0.03, 1.88]). Women with SLE had an increased risk of stillbirth compared to controls (adjusted OR 2.13 [95% CI 1.02, 4.45]). We also observed a trend toward more stillbirths due to placenta‐mediated pregnancy complications in mothers with SLE than in controls (44% [95% CI 14, 79] versus 15% [95% CI 6, 28]).ConclusionCompared to women from the general population, women with SLE have an increased risk of stillbirth. Stillbirths in women with SLE might be more often caused by placenta‐mediated pregnancy complications compared to stillbirths in mothers without SLE.
Reductive Hydrogenation of Cs‐C70(CF3)8 and C1‐C70(CF3)10
Authors: Brotsman Victor A. , Bogdanov Viktor P. , Rybalchenko Alexey V. , Galanicheva Evgenia P. , Belov Nikita M. , Markov Vitaliy Yu. , Lukonina Natalia S. , Ioffe Ilya N. , Troyanov Sergey I. , Kemnitz Erhard , Goryunkov Alexey A. 
Published: May 2016

AbstractCF3‐derivatized fullerenes prove once again to be promising scaffolds for regioselective fullerene functionalization: now with the smallest possible addends—hydrogen atoms. Hydrogenation of Cs‐C70(CF3)8 and C1‐C70(CF3)10 by means of reduction with Zn/Cu couple in the presence of water proceeds regioselectively, yielding only one major isomer of C70(CF3)8H2 and only two for C70(CF3)10H2, whose addition patterns are combined in the only abundant isomer of C70(CF3)10H4. The observed selectivity is governed by the electronic structure of trifluoromethylated substrates. Interestingly, we discovered that Clar's theory can be utilized to predict the regiochemistry of functionalization, and we look forward to testing it on forthcoming cases of derivatization of pre‐functionalized fullerene building blocks.
Time‐dependent life cycle assessment of microalgal biorefinery co‐products
Authors: Montazeri Mahdokht , Soh Lindsay , Pérez‐López Paula , Zimmerman Julie B. , Eckelman Matthew J. 
Published: May 2016

AbstractMicroalgae can serve as a highly productive biological feedstock for fuels and chemicals. The lipid fraction has been the primary target of research, but numerous assessments have found that valorization of co‐products is essential to achieve economic and environmental goals. The relative proportion of co‐products depends on the biomolecular composition of algae at the time of harvesting. In the present study, the productivity of lipid, starch, and protein fractions were shown through growth experiments to vary widely with species, feeding regime, and harvesting period. Four algae species were cultivated under nitrogen‐replete and ‐deplete conditions and analyzed at 3‐day intervals. Dynamic growth results were then used for life cycle assessment using the US Department of Energy's GREET model to determine optimal growth scenarios that minimize life cycle greenhouse gas (GHG) emissions, eutrophication, and cumulative energy demand (CED), while aiming for an energy return on investment (EROI) greater than unity. Per kg of biodiesel produced, C. sorokiniana in N‐replete conditions harvested at 12 days was most favorable for GHG emissions and CED, despite having a lipid content of <20%. N. oculata in N‐deplete conditions with a 12‐day harvesting period had the lowest life cycle eutrophication impacts, driven by efficient nutrient cycling and valorization of microalgal protein and anaerobic digester residue co‐products. Results indicate that growth cycle times that maximize a single fraction do not necessarily result in the most favorable environmental performance on a life cycle basis, underscoring the importance of designing biorefinery systems that ‐simultaneously optimize for lipid and non‐lipid fractions. © 2016 Society of Chemical Industry and John Wiley & Sons, Ltd
Involvement of the Baeyer–Villiger Monooxygenase IfnQ in the Biosynthesis of Isofuranonaphthoquinone Scaffold of JBIR‐76 and ‐77
Authors: Katsuyama Yohei , Sone Kaoru , Satou Ryutaro , Izumikawa Miho , Takagi Motoki , Fujie Manabu , Satoh Noriyuki , Shin‐ya Kazuo , Ohnishi Yasuo 
Published: May 2016

AbstractJBIR‐76 and ‐77 are isofuranonaphthoquinones (IFNQs) isolated from Streptomyces sp. RI‐77. Draft genome sequencing and gene disruption analysis of Streptomyces sp. RI‐77 showed that a type II polyketide synthase (PKS) gene cluster (ifn cluster) was responsible for the biosynthesis of JBIR‐76 and ‐77. It was envisaged that an octaketide intermediate (C16) could be synthesized by the minimal PKS (IfnANO) and that formation of the IFNQ scaffold (C13) would therefore require a C−C bond cleavage reaction. An ifnQ disruptant accumulated some shunt products (C15), which were presumably produced by spontaneous cyclization of the decarboxylated octaketide intermediate. Recombinant IfnQ catalyzed the Baeyer–Villiger oxidation of 1‐(2‐naphthyl)acetone, an analogue of the bicyclic octaketide intermediate. Based on these results, we propose a pathway for the biosynthesis of JBIR‐76 and ‐77, involving IfnQ‐catalyzed C−C bond cleavage as a key step in the formation of the IFNQ scaffold.
Synthesis of Nitrogen‐Doped Porous Carbon Nanocubes as a Catalyst Support for Methanol Oxidation
Authors: Liang Yan , Wei Jing , Zhang Xinyi , Zhang Jin , Jiang San Ping , Wang Huanting 
Published: May 2016

AbstractNitrogen‐doped porous carbon nanocubes with a high surface area synthesized by carbonizing Prussian blue nanocubes coated with poly(fururyl alcohol) were used to support Pt nanoparticles as an electrocatalyst for the oxidation of methanol. The resulting catalyst exhibited excellent electrocatalytic activity and electrochemical stability, owning to its high surface area, a uniform dispersion of Pt particles, and enhanced interaction between the particles and the support.
Non‐coordinating‐Anion‐Directed Reversal of Activation Site: Selective C−H Bond Activation of N‐Aryl Rings
Authors: Wang Dawei , Yu Xiaoli , Xu Xiang , Ge Bingyang , Wang Xiaoli , Zhang Yaxuan 
Published: May 2016

AbstractAn Rh‐catalyzed selective C−H bond activation of diaryl‐substituted anilides is described. In an attempt to achieve C−H activation of C‐aryl rings, we unexpectedly obtained an N‐aryl ring product under non‐coordinating anion conditions, whereas the C‐aryl ring product was obtained in the absence of a non‐coordinating anion. This methodology has proved to be an excellent means of tuning and adjusting selective C−H bond activation of C‐aryl and N‐aryl rings. The approach has been rationalized by mechanistic studies and theoretical calculations. In addition, it has been found and verified that the catalytic activity of the rhodium catalyst is obviously improved by non‐coordinating anions, which provides an efficient strategy for obtaining a highly chemoselective catalyst. Mechanistic experiments also unequivocally ruled out the possibility of a so‐called “silver effect” in this transformation involving silver.
Boron‐Metallated Borirenes and Bis(Borirenes)
Authors: Braunschweig Holger , Celik Mehmet Ali , Dewhurst Rian D. , Ferkinghoff Katharina , Radacki Krzysztof , Weißenberger Felix 
Published: May 2016

AbstractHeating the metalloborylene complex [{(η5‐C5Me5)Fe(CO)2}(μ‐B){Cr(CO)5}] with alkynes and diynes leads to the formation of B‐metallated borirenes and a bis(B‐metallated borirene) through formal transfer of the metalloborylene moiety [(η5‐C5Me5)(OC)2Fe(B:)]. By using this protocol, a range of B‐metallated borirenes with electron‐donating and electron‐withdrawing substituents are prepared, and these are studied spectroscopically, structurally, and computationally. The yellow‐orange color of the complexes is additionally explained through time‐dependent density functional theory calculations.
Efficient Bottom‐Up Preparation of Graphene Nanoribbons by Mild Suzuki–Miyaura Polymerization of Simple Triaryl Monomers
Authors: Li Gang , Yoon Ki‐Young , Zhong Xinjue , Zhu Xiaoyang , Dong Guangbin 
Published: May 2016

AbstractHerein an efficient bottom‐up solution‐phase synthesis of N=9 armchair graphene nanoribbons (GNRs) is described. Catalyzed by Pd(PtBu3)2, Suzuki–Miyaura polymerization of a simple and readily available triaryl monomer provides a novel GNR precursor with a high molecular weight and excellent solubility. Upon cyclodehydrogenation, the resulting GNR exhibits semiconducting properties with an approximately 1.1 eV band gap (LUMO: −3.52 eV; HOMO: −4.66 eV) as characterized by UV/Vis‐NIR spectroscopy and cyclic voltammetry.
ChemInform Abstract: HYDROTHERMAL SYNTHESIS OF A NEW MOLYBDENUM HOLLANDITE CONTAINING TETRANUCLEAR METAL‐ATOM CLUSTERS. X‐RAY CRYSTAL STRUCTURE OF K2MO8O16
Authors: TORARDI C. C. , CALABRESE J. C. 
Published: May 2016

AbstractHydrothermalreakt‐ion von KOH/K3MoO4‐Lösungen mit M0‐Metall bei 500‐700°C (3 kbar) ergab schwarze säulenförmige Kristalle von der Titelverbindung (monoklin, P2/n, Z=2).
ChemInform Abstract: STEREOSELECTIVE SYNTHESIS AND DIELS‐ALDER REACTIONS OF BIS‐ETHER 1,3‐DIENES. A FURTHER TEST FOR COOPERATIVITY DURING CYCLOADDITON REACTIONS.
Authors: GREE R. , KESSABI J. , MOSSET P. , MARTELLI J. , CARRIE R. 
Published: May 2016

AbstractAus dem Dienyleisencarbonyl‐ester (1) erhält man den Alkohol (II), der nach Oxidation zum Aldehyd (III) nach Grignard zum Alkohol (V) führt und den Ether (VI) liefert.
ChemInform Abstract: AMINATION OF 5,8‐DIHYDROXY‐1,4‐NAPHTHOQUINONE
Authors: TAKAGI K. , MATSUOKA M. , HAMANO K. , KITAO T. 
Published: May 2016

AbstractDie Umsetzung von Naphth+ azarin (I) und Butylamin ergibt bei niederen Temperaturen selektiv 2‐Butylaminonaphthazarin (II) in guter Ausbeute, bei höheren Temperaturen entstehen dagegen komplexe Gemische.
ChemInform Abstract: PHOTOCYCLOADDITION OF 1,1′‐BIS(METHOXYCARBONYL)DIVINYLAMINE WITH VARIOUS UNSATURATED COMPOUNDS. SYNTHESIS OF NOVEL 7‐AZANORBORNANE DERIVATIVES
Authors: ZAIMA T. , MATSUNO C. , MATSUNAGA Y. , MITSUHASHI K. 
Published: May 2016

AbstractDie Photocycloaddition des Bis‐methoxycarbonylvinyl‐amins (1) an Acetylendinitril (II) und Olefine mit relativ stark elektronenanziehenden Gruppen an beiden Kohlenstoffatomen der Olefinbindung liefert das 7‐Azabicyclohepten (III) und die Azabicycloheptan‐Derivate (V) unter Erhalt der ursprünglichen Konfiguration der Olefine.
ChemInform Abstract: Ready Syntheses of Benzoporphyrins via Diels‐Alder Reactions with Protoporphyrin IX.
Authors: MORGAN A. R. , SCHERRER PANGKA V. , DOLPHIN D. 
Published: May 2016

AbstractGemäß Formelschema werden ausgehend von Protoporphyrin‐IX‐dimethylester (I) die Benzoporphyrine (V) bzw. (XI) dargestellt.
ChemInform Abstract: SYNTHESIS OF DIQUINOLINOANTHRACENE AND PYRIDONOANTHRAQUINOLINES
Authors: KAZANKOV M. V. , BERNADSKII M. I. , MUSTAFINA M. YA. 
Published: May 2016

AbstractDas Di‐(p‐ toluidino)‐anthrachinon (I) cyclisiert beim Erhitzen in Polyphosphorsäure zum 8‐(p‐ToluidinoH‐methylkeramidonin (II) und dem Dibenzonaphthophenanthrolin (III).
ChemInform Abstract: ANTIMYCOTIC ACTION OF SOME NITRO‐N‐(5‐PYRIMIDINYL)BENZENESULFONAMIDES
Authors: VAMPA G. , PECORARI P. , RINALDI M. , MELEGARI M. , ALBASINI A. , PROVVISIONATO A. 
Published: May 2016

AbstractDas Amino‐pyrimidin (I) reagiert mit Nitrobenzolsulfonsäuren (II) zu den Sulfonamiden (IIIa), aus denen durch Alkylierung die Thioether (IIIb) erhalten werden.
ChemInform Abstract: ANALOGS OF THE (FE4S4)+ SITES OF REDUCED FERREDOXINS: SINGLE‐STEP SYNTHESIS OF THE CLUSTERS (FE4S4(SR)4)3‐ AND EXAMPLES OF COMPRESSED TETRAGONAL COR STRUCTURES
Authors: HAGEN K. S. , WATSON A. D. , HOLM R. H. 
Published: May 2016

AbstractUnter anaeroben Bedingungen werden durch 2 : l : I‐molare Umsetzung von NaSR"mit FeClz und NaSH in einer einzigen Stufe die als Ammoniumsalze isolierten, reduzierten Cluster (II) gebildet.
ChemInform Abstract: LINEAR OLIGOPHOSPHAALKANES. PART 13. IRON CLUSTER WITH COUPLED PHOSPHIDOPHOSPHINE BRIDGES
Authors: BRAUER D. J. , HIETKAMP S. , SOMMER H. , STELZER O. 
Published: May 2016

AbstractBei der Umsetzung des Liganden (I) mit Fe2(CO)9 im Mol‐ Verhältnis 1:6 in Octan (20 min, 65°C) entstehen die Cluster (III).
ChemInform Abstract: NUCLEAR MAGNETIC RESONANCE INVESTIGATIONS OF CONFIGURATIONAL NONRIGIDITY IN DINUCLEAR PLATINUM(IV) COMPLEXES. PART 5. INTRAMOLECULAR REARRANGEMENTS IN THE DINUCLEAR PLATINUM(IV) COMPLEXES OF 1,3,5,7‐TETRATHIOCANE. X‐RAY CRYSTAL STRUCTURE OF DI‐μ‐CHLORO‐μ‐(1,3,5,7‐TETRATHIOCANE‐S1,S3)BIS(TRIMETHYLPLATINUM(IV))
Authors: ABEL E. W. , KING G. D. , ORRELL K. G. , SIK V. , CAMERON T. S. , JOCHEM K. 
Published: May 2016

AbstractDie Komplexe (III) werden direkt bei Reaktion der Pt(IV)‐Tetrameren (I) mit dem Liganden (II) erhalten.
ChemInform Abstract: SYNTHESIS OF (.+‐.)‐4‐DEMETHOXY‐7,11‐DIDEOXYDAUNOMYCINONE
Authors: DESHPANDE V. H. , RAVICHANDRAN K. , RAO B. R. 
Published: May 2016

AbstractAus dem Tetralon‐ Derivat (I) wird über die im Formelschema gezeigten Schritte in die im Titel genannte Verbindung (VIII) übergcführt.
ChemInform Abstract: Effect of Lanthanum‐ and Neodymium Oxide Addition to Molybdenum‐Phosphorous Oxide Catalyst on Oxidation of 1‐Butene.
Authors: ZIELINSKI S. , WACHOWSKI L. , KIRSZENSZTEJN P. 
Published: May 2016

AbstractFür MoO3‐P2O5 ‐Katalysatoren mit einem P/Mo‐Atomverhältnis von 0.2 wurde der Einfluß von Ln2O3‐Zusätzen (Ln: La oder Nd) für Ln/Mo = 0 bis 0.25 auf die Luftoxidation von Buten‐(1) untersucht.
ChemInform Abstract: THREE‐CENTER (BIFURCATED) HYDROGEN BONDING IN THE CRYSTAL STRUCTURES OF AMINO ACIDS
Authors: JEFFREY G. A. , MITRA J. 
Published: May 2016

AbstractIn bezug auf die Beteiligung der H‐Atome der ‐NH3+‐Gruppen von Aminosäuren an verschiedenen Zentren [neben dem Amino‐N das Carboxylat‐O, das Hydroxyl‐O, das Wasser‐O (in Hydraten), ein weiteres Amino‐N (in Dipeptiden), Cl‐ (in Hydrochloriden)] werden drei verschiedene Verbindungsklassen unterschieden: Aminosäuren mit drei Zweizentren‐, solche mit einer Drei‐ und zwei Zweizentren‐ und solche mit zwei Drei‐ und einer Zweizentren‐H‐Bindung (drei Dreizentren‐H‐Bindungen kommen nicht vor).