bluuebunny/crossref_metadata_2025_split huggingface dataset:
Solid‐Phase Synthesis of Peptide Libraries Combining α‐Amino Acids with Inorganic and Organic Chromophores
Authors: Heinze Katja , Hempel Klaus 
Published: January 2009

AbstractThe synthesis of two series of peptidic chains composed of bis(terpyridine)ruthenium(II) acceptor units and organic chromophores (coumarin, naphthalene, anthracene, fluorene) by stepwise solid‐phase peptide synthesis (SPPS) techniques is described. The first series of dyads comprises directly amide linked chromophores, while the second one possesses a glycine spacer between the two chromophores. All dyads were studied by UV/Vis and NMR spectroscopy, steady‐state luminescence, luminescence decay and electrochemistry, as well as by DFT calculations. The results of these studies indicate weak electronic coupling of the chromophores in the ground state. Absorpion spectra of all dyads are dominated by metal‐to‐ligand charge‐transfer (MLCT) bands around 500 nm. The bichromophoric systems, especially with coumarin as organic chromophore, display additional strong absorptions in the visible spectral region. All complexes are luminescent at room temperature (3MLCT). Efficient quenching of the fluorescence of the organic chromophore by the attached ruthenium complex is observed in all dyads. Excitation spectra indicate energy transfer from the organic dye to the ruthenium chromophore.
Highly Selective Dehydrogenative Silylation of Alkenes Catalyzed by Rhenium Complexes
Authors: Jiang Yanfeng , Blacque Olivier , Fox Thomas , Frech Christian M. , Berke Heinz 
Published: January 2009

AbstractChoosy chemicals: Rhenium(I) complexes of type [ReBr2(L)(NO)(PR3)2] (L=H2 (1), CH3CN (2), ethylene (3); R=iPr (a), cyclohexyl (b)) proved to be suitable catalyst precursors for the highly selective dehydrogenative silylation of alkenes. Two types of rhenium(I) hydride species, [ReBrH(NO)(PR3)2] (4) and [ReBr(η2‐CH2CHR1)H(NO)(PR3)2] (5), were found in the [ReBr2(L)(NO)(PR3)2]‐catalyzed dehydrogenative silylation of alkenes.magnified imageRhenium(I) complexes of type [ReBr2(L)(NO)(PR3)2] (L=H2 (1), CH3CN (2), and ethylene (3); R=iPr (a) and cyclohexyl (Cy; b)) catalyze dehydrogenative silylation of alkenes in a highly selective manner to yield silyl alkenes and the corresponding alkanes. Hydrosilylation products appear only rarely depending on the type of olefinic substituent, and if they do appear then it is in very minor amounts. Mechanistic studies showed that two rhenium(I) hydride species of type [ReBrH(NO)(PR3)2] (R=iPr (4 a) and Cy (4 b)) and [ReBr(η2‐CH2CHR1)H(NO)(PR3)2] (R1=p‐CH3C6H4, R=iPr (5 a), Cy (5 b); R1=H, R=iPr (5 a′), Cy (5 b′)) are involved in the initiation pathway of the catalysis. The rate‐determining steps of the catalytic cycle are the phosphine dissociation from complexes of type 5 and the reductive eliminations to form the alkane components. The catalytic cycle implies that the given rhenium systems have the ability to activate CH and SiH bonds through the aid of a facile redox interplay of ReI and ReIII species. The molecular structures of 4 b and 5 a were established by means of X‐ray diffraction studies.
Selective Chromofluorogenic Sensing of Heparin by using Functionalised Silica Nanoparticles Containing Binding Sites and a Signalling Reporter
Authors: Climent Estela , Calero Pilar , Marcos M. Dolores , Martínez‐Máñez Ramón , Sancenón Félix , Soto Juan 
Published: January 2009

AbstractHeparin detective: Silica nanoparticles functionalised with ion‐channel scaffolds were prepared and used for the chromofluorogenic sensing of heparin in aqueous environments (see figure). The surface of the nanoparticles was functionalised with polyamines (binding sites) and thiols. The reaction of a dye (squaraine) with the surface thiol groups was selectively inhibited by the coordination of heparin with the partly protonated polyamines.magnified image
Efficient Air‐Stable Organometallic Low‐Molecular‐Mass Gelators for Ionic Liquids: Synthesis, Aggregation and Application of Pyridine‐Bridged Bis(benzimidazolylidene)–Palladium Complexes
Authors: Tu Tao , Bao Xiaoling , Assenmacher Wilfried , Peterlik Herwig , Daniels Jörg , Dötz Karl Heinz 
Published: January 2009

AbstractBeyond catalysis: Novel pincer‐type pyridine‐bridged bis(benzimidazolylidene)–palladium complexes have been synthesised and shown to efficiently gelate a variety of solvents and customary ionic liquids. π‐Stacking, van der Waals interactions, hydrogen and metal–metal bonding are responsible for 3D gel networks formed by the metallogelators.magnified imageNovel pincer‐type, pyridine‐bridged bis(benzimidazolylidene)–palladium complexes 5–7 were synthesised from cheap commercial precursors under microwave assistance. Although simple in structure, carbene complexes 5 a,b are efficient low‐molecular‐mass metallogelators. They gelate not only a broad variety of protic and aprotic organic solvents, but also different types of customary ionic liquids (such as imidazolium, pyridinium, pyrazolidinium, piperidinium and ammonium salts) at concentrations as low as 0.5 mg mL−1. The morphologies of the resulting 3D gel networks composed from long and thin fibres were studied by TEM and light microscopy for a selection of organic and ionic liquids. The achiral gelators are able to induce the formation of helical fibres. The thermal stability of the gel samples increases with the gelator concentration as demonstrated by thermoreversible DSC studies. Temperature‐dependent NMR and X‐ray diffraction studies, as well as comparisons with pincer complex analogues bearing shorter alkyl chains, suggest that the 3D networks responsible for gelation are based on non‐covalent interactions, such as π‐stacking, van der Waals interactions, and hydrogen and metal–metal bonding. Ionic liquids and gels obtained from them and 5 a,b display comparable high conductivities, which characterises pyridine‐bridged bis(benzimidazolylidene)–palladium pincer complexes as air‐stable metallo gelators that efficiently immobilise ionic liquids in low gelator concentration indicating—beyond catalysis—their potential applications in electrochemical devices.
N4‐Tetradentate Dicarboxyamidate/Dipyridyl Palladium Complexes as Robust Catalysts for the Heck Reaction of Deactivated Aryl Chlorides
Authors: Srinivas Pottabathula , Likhar Pravin R. , Maheswaran Hariharasarma , Sridhar Balasubramanian , Ravikumar Krishnan , Kantam Mannepalli Lakshmi 
Published: January 2009

AbstractStructurally well defined and thermally stable PdII complexes, derived from N4‐tetradentate dicarboxyamide/dipyridyl ligands, were evaluated as catalysts for the Heck reactions of deactivated aryl chlorides and olefins (see scheme). The concept of using an anionic carboxyamide as an ancillary ligand for palladium demonstrated here provides a new opportunity for the development of phosphine‐free transition‐metal catalysis.magnified imageNo Abstract
Enantioselective and Catalytic Method for α‐Crotylation of Aldehydes with a Kinetic Self‐Refinement of Stereochemistry
Authors: Malkov Andrei V. , Kabeshov Mikhail A. , Barłog Maciej , Kočovský Pavel 
Published: January 2009

AbstractKinetic refinery: A practical, highly stereoselective, two‐step catalytic protocol for the α‐allylation of aldehydes, starting from crotyltrichlorosilanes, has been developed (see scheme). In each reaction step, one of the stereoisomers reacted faster than the other, which resulted in a kinetic stereochemical (E/Z) self‐refinement of the system and led to the formation of virtually enantiomerically and geometrically pure linear homoallylic alcohols in high yield.magnified imageNo Abstract
On the Possibility of Conversion of Alcohols to Ketones and Aldehydes by Phosphinoboranes R2PBR′R′′: A Computational Study
Authors: Privalov Timofei 
Published: January 2009

AbstractCan phosphinoboranes promote hydrogenation of carbonyl moieties? By means of B3LYP and MPW1K density functional calculations the likelihood of the oxidation of alcohols by phosphinoboranes R2PBR′2 (1) was explored. As a proof‐of‐principle, a theoretical study that tests the reversibility of the alcohol oxidation is reported. The potential of 1 as a metal‐free hydrogenation mediator is discussed for a series of hydrogen sources such as primary and secondary alcohols.magnified image
ChemInform Abstract: Reactions of Uranium Atoms with Ammonia: Infrared Spectra and Quasi‐Relativistic Calculations of the U:NH3, H2N—UH, and HN=UH2 Complexes.
Authors: Wang Xuefeng , Andrews Lester , Marsden Colin J. 
Published: January 2009

AbstractChemInform 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: A 119Sn Moessbauer and 45Sc Solid State NMR Spectroscopic Study of the Stannides ScTSn (T: Ni, Pd, Pt).
Authors: Harmening Thomas , Sebastian C. Peter , Zhang Long , Fehse Constanze , Eckert Hellmut , Poettgen Rainer 
Published: January 2009

AbstractChemInform 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: Crystal Structure of a Zn‐Doped Derivative of the Li17Ge4 Compound.
Authors: Lacroix‐Orio L. , Tillard M. , Belin C. 
Published: January 2009

AbstractChemInform 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: Crystal Structure of the 2/1 Cubic Approximant Ag42In42Yb16.
Authors: Li M. R. , Hovmoeller S. , Sun J. L. , Zou X. D. , Kuo K. H. 
Published: January 2009

AbstractChemInform 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: Tt—Tt (Tt: Si, Ge) Dumb‐Bell Structures at Different Valence Electron Concentrations: Ln2MgSi2 (Ln: La, Ce), Yb2Li0.5Ge2, and Yb1.75Mg0.75Si2.
Authors: Xie Qinxing , Kubata Christof , Woerle Michael , Nesper Reinhard 
Published: January 2009

AbstractChemInform 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: The Crystal Structure and Thermal Expansion Properties of Solid Solutions Ln2‐xDyxW3O12 (Ln: Er and Y).
Authors: Xiao X. L. , Peng J. , Wu M. M. , Cheng Y. Z. , Chen D. F. , Hu Z. B. 
Published: January 2009

AbstractChemInform 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: Preparation, Crystal Structure, and Photoluminescence of Ca2SnO4:Eu3+, Y3+.
Authors: Yamane Hisanori , Kaminaga Yusuke , Abe Shunsuke , Yamada Takahiro 
Published: January 2009

AbstractChemInform 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: Preparation of New Lithium Ion Composite Electrolyte 3Li4SiS4—0.5La2S3 by Mechanical Milling.
Authors: Liu Zhanqiang , Huang Fuqiang , Yang Jianhua , Wang Yaoming , Sun Junkang 
Published: January 2009

AbstractChemInform 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: Investigaton of the Thermodynamics Governing Metal Hydride Synthesis in the Molten State Process.
Authors: Stowe Ashley C. , Berseth Polly A. , Farrell Thomas P. , Laughlin Laura , Anton Donald , Zidan Ragaiy 
Published: January 2009

AbstractChemInform 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: Solid Solutions of Perovskite in the LaO1.5—BaO—ScO1.5—ZrO2 System at 1600 °C
Authors: Suehiro Koichi , Imashuku Susumu , Uda Tetsuya , Nose Yoshitaro , Awakura Yasuhiro 
Published: January 2009

AbstractChemInform 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: Spinel Li4Ti5O12 as a Reversible Anode Material Down to 0 V.
Authors: Yao X. L. , Xie S. , Nian H. Q. , Chen C. H. 
Published: January 2009

AbstractChemInform 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: NMR Spectroscopic Studies of Interactions in Solution During the Synthesis of MoVTeNb Oxide Catalysts.
Authors: Maksimovskaya Raisa I. , Bondareva Valentina M. , Aleshina Galina I. 
Published: January 2009

AbstractChemInform 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: Mesoporous Bismuth Titanate with Visible‐Light Photocatalytic Activity.
Authors: Kong Lingdong , Chen Haihan , Hua Weiming , Zhang Shicheng , Chen Jianmin 
Published: January 2009

AbstractChemInform 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: Improved Hydrogen Sorption of Sodium Alanate by Optimized Processing.
Authors: Eigen N. , Gosch F. , Dornheim M. , Klassen T. , Bormann R. 
Published: January 2009

AbstractChemInform 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 Oxonium Halogenochalcogenates Stabilized by Crown Ethers: [H3O(Dibromo‐benzo‐18‐crown‐6)]2 [Se3Br10] and [H5O2(Bis‐dibromo‐dibenzo‐24‐crown‐8)]2 [Se3Br8].
Authors: Beckmann Illenora , Laege Mechtild , Krebs Bernt 
Published: January 2009

AbstractChemInform 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 Layered Rare‐Earth Hydroxides with Anion‐Exchange Properties.
Authors: Geng Fengxia , Xin Hao , Matsushita Yoshitaka , Ma Renzhi , Tanaka Masahiko , Izumi Fujio , Iyi Nobuo , Sasaki Takayoshi 
Published: January 2009

AbstractChemInform 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: A 3D Metal Halide Framework in the Organic—Inorganic Compound (H3N(CH2)2SS (CH2)2NH3) 3Pb5I16.
Authors: Louvain Nicolas , Mercier Nicolas 
Published: January 2009

AbstractChemInform 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: Slow‐Proton Dynamics within a Zirconium‐Containing Sandwich‐Like Complex Based on the Trivacant Anion α‐[SiW9O34]10‐ — Synthesis, Structure and NMR Spectroscopy.
Authors: Leclerc‐Laronze Nathalie , Marrot Jerome , Haouas Mohamed , Taulelle Francis , Cadot Emmanuel 
Published: January 2009

AbstractChemInform 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 Metal Tungstates by Novel Solid‐State Metathetic Approach.
Authors: Parhi Purnendu , Karthik T. N. , Manivannan V. 
Published: January 2009

AbstractChemInform 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: The Influence of the Amine Concentration onto Product Formation: Crystal Structures, Thermal Stability and Spectroscopic Properties of Two New Manganese Thiostannates Obtained under Solvothermal Conditions.
Authors: Pienack Nicole , Naether Christian , Bensch Wolfgang 
Published: January 2009

AbstractChemInform 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: Residual Dipolar Coupling (RDCs) in Organic Structure Determination.
Authors: Thiele Christina M. 
Published: January 2009

AbstractChemInform 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 Properties of MIL‐101.
Authors: Henschel Antje , Gedrich Kristina , Kraehnert Ralph , Kaskel Stefan 
Published: January 2009

AbstractChemInform 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 Intramolecular Arylcyanation of Unactivated Olefins via C—CN Bond Activation.
Authors: Watson Mary P. , Jacobsen Eric N. 
Published: January 2009

AbstractChemInform 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: A New Leaving Group in Nucleophilic Aromatic Substituted Reactions (SNAr).
Authors: Bakavoli Mehdi , Pordel Mehdi , Rahimizadeh Mohammad , Jahandari Pooneh 
Published: January 2009

AbstractChemInform 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: Efficient Assembly of Allenes, 1,3‐Dienes, and 4H‐Pyrans by Catalytic Regioselective Nucleophilic Addition to Electron‐Deficient 1,3‐Conjugated Enynes.
Authors: Yu Xiuzhao , Ren Hongjun , Xiao Yuanjing , Zhang Junliang 
Published: January 2009

AbstractChemInform 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: Chemoselective Reduction of Aldehydes over Ketones with Sodium Tris(hexafluoroisopropoxy)borohydride.
Authors: Kuroiwa Yasutaka , Matsumura Shuichi , Toshima Kazunobu 
Published: January 2009

AbstractChemInform 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: Microwave‐Assisted and Ln(OTf)3‐Catalyzed Homo‐Conjugate Addition of N‐Heteroaromatics to Activated Cyclopropane Derivatives.
Authors: Uddin Md. Imam , Mimoto Akiko , Nakano Keiji , Ichikawa Yoshiyasu , Kotsuki Hiyoshizo 
Published: January 2009

AbstractChemInform 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: Efficient Copper‐Promoted N‐Arylations of Aryl Halides with Amines.
Authors: Huang He , Yan Xiuhua , Zhu Weiliang , Liu Hong , Jiang Hualiang , Chen Kaixian 
Published: January 2009

AbstractChemInform 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: Iron‐Catalyzed C—C Bond Formation by Direct Functionalization of C—H Bonds Adjacent to Heteroatoms.
Authors: Li Zhiping , Yu Rong , Li Haijun 
Published: January 2009

AbstractChemInform 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.