bluuebunny/crossref_metadata_2025_split huggingface dataset:
Olefin Epoxidation by H2O2/MeCN Catalysed by Cyclopentadienyloxidotungsten(VI) and Molybdenum(VI) Complexes: Experiments and Computations
Authors: Dinoi Chiara , Ciclosi Marco , Manoury Eric , Maron Laurent , Perrin Lionel , Poli Rinaldo 
Published: May 2010

AbstractCompounds [Cp*2M2O5] (M=Mo, 1; W, 2) are efficient pre‐catalysts for cyclooctene (COE) epoxidation by aqueous H2O2 in acetonitrile/toluene. The reaction is quantitative, selective and takes place approximately 50 times faster for the W system (kobs=4.32(9)×10−4 s−1 at 55 °C and 3×10−3 M concentration for the dinuclear complex, vs. 1.06(7)×10−5 s−1 for the Mo system). The rate law is first order in catalyst and COE substrate (k=0.138(7) M−1 s−1 for the W system at 55 °C), whereas increasing the concentration of H2O2 slows down the reaction because of an inhibiting effect of the greater amount of water. The activation parameters for the more active W systems (ΔH≠=10.2(6) kcal mol−1; ΔS≠=−32(2) cal mol−1 K−1) were obtained from an Eyring study in the 25–55 °C temperature range. The H2O2⋅urea adduct was less efficient as an oxidant than the aqueous H2O2 solution. Replacement of toluene with diethyl ether did not significantly affect the catalyst efficiency, whereas replacement with THF slowed down the process. The epoxidation of ethylene as a model olefin, catalysed by the [Cp*MO2Cl] systems (M=W, Mo) in the presence of H2O2 as oxidant and acetonitrile as solvent, has been investigated by DFT calculations with the use of the conductor‐like polarisable continuum model (CPCM). For both metal systems, the rate‐limiting step is the transfer of the hydroperoxido Oα atom to the olefin, in accordance with the first‐order dependence on the substrate and the zero‐order dependence on H2O2 found experimentally in the catalytic data. The activation barrier corresponding to the rate‐limiting step is 4 kcal lower for the W complex than for the corresponding Mo analogue (32.3 vs. 28.3 kcal mol−1). This result reproduces well the higher catalytic activity of the W species. The different catalytic behaviour between the two systems is rationalised by a natural bond orbital (NBO) study and natural population analyses (NPA). Compared to Mo, the WVI centre withdraws more electron density from the σ bonding [OO] orbital and favours, as a consequence, the nucleophilic attack of the external olefin on the σ*[OO] orbital.
Demonstration of “Möbius” Aromaticity in Planar Metallacycles
Authors: Mauksch Michael , Tsogoeva Svetlana B. 
Published: May 2010

AbstractMöbius aromaticity, predicted by Edgar Heilbronner in 1964, is a stabilizing effect exhibited by 4 n electron fully conjugated cyclic molecules (or transition states) with an odd number of orbital phase inversions. Although it has previously been suggested that this effect might also apply to planar metallacycles in which a transition metal employs a d orbital in δ‐type binding mode, only very few examples of stable twisted molecules composed of main group elements are known. We report herein, the first computationally confirmed 4 n π aromatic planar metallacyclic examples and their building principles. Aromatic stabilization energy (ASE) of a 8 π metalla‐cycloheptatriene [Fe(CH)6H2], with four doubly occupied π orbitals and a HOMA value of +0.80 (cf. benzene=+1.0), an NICS(0) value of −8.5 (benzene=−9.8, NICS=nucleus independent chemical shift), and with one phase inversion, is +27.5 kcal mol−1 (about two‐thirds of the value for benzene). In contrast, an unknown non‐Möbius 1,4‐dimetallabenzene [Fe2(CH)4H4], also with 8 π electrons, and without phase inversions, has an ASE of −4.1 kcal mol−1 and a NICS(0)=+15.6, indicative of antiaromaticity. Aromaticity of the proposed Möbius aromatic metallacycles is confirmed by using magnetic (NICS(0), NICS(1)zz, δ1H) and geometric (HOMA) aromaticity criteria, planarity, and near equalized CC bond lengths, bonding analysis (Wiberg bond indices, NBO, and NLMO analysis). The role of wave function boundary conditions (periodic vs. antiperiodic) in chemistry is further stressed, being equivalent to Zimmerman’s concept of nodal parity for Möbius/Hückel systems.
Efficient Activation of Aromatic CH Bonds for Fused Polyaromatic Hydrocarbon Construction
Authors: Hu Yimin , Yao Hao , Sun Yongjie , Wan Jing , Lin Xiangang , Zhu Tao 
Published: May 2010

AbstractAn extraordinary domino method for the construction of polycyclic aromatic hydrocarbons has been established. Various 4,9‐diphenyl‐2,3‐dihydro‐1H‐cyclopenta[b]naphthalene derivatives are constructed by the palladium(0)‐catalyzed reaction of diynes with aryl halides through C–C coupling and CH bond activation of the incorporated aryl group, which provides an effective π‐system synthesis.
ChemInform Abstract: Single‐Molecule Precipitation of Transition Metal(I) Chlorides in Water Clusters.
Authors: Fox Brigitte S. , Balaj O. Petru , Balteanu Iulia , Beyer Martin K. , Bondybey Vladimir E. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Au1‐xNixSn4 Intermetallic Alloys.
Authors: Zavalij L. , Zribi A. , Chromik R. R. , Pitely S. , Zavalij P. Y. , Cotts E. J. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Investigations of the Compounds ASc2S4 (A: Mn, Fe, Cd).
Authors: Reil S. , Stork H.‐J. , Haeuseler H. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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, Structures and Properties of CaGa, YGa and Y(Ga,Z) Phases: A Model for the Transformation of a CrB to a MoB‐Type Structure in Doped YGa Phases.
Authors: Zhao Jing‐Tai , Seo Dong‐Kyun , Corbett John D. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 the One‐Dimensional Zincophosphate Mu‐22: [Zn(HPO4)2]8 [C5H13N2] 8×8H2O.
Authors: Fleith Sandrine , Josien Ludovic , Simon‐Masseron Angelique , Gramlich Volker , Patarin Joel 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Three‐Dimensional Organically Templated Open‐Framework Transition Metal Selenites.
Authors: Choudhury Amitava , Kumar D Udaya , Rao C. N. R. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Solvothermal Synthesis and Characterization of a One‐Dimensional Zinc Phosphate.
Authors: Yanxiong K. , Jianmin L. , Yugen Z. , Gaofei H. , Zheng J. , Zhibin L. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Structures of the Cu6Hg0.973SiS5.973 and Ag6Hg0.897SiS5.897 Compounds.
Authors: Gulay L. D. , Parasyuk O. V. , Olekseyuk I. D. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Nd(Cd,Si)2 Compound
Authors: Salamakha P. , Sologub O. , Demchenko P. , Righi L. , Bocelli G. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Development of ZrO2—ZrB2 Composites.
Authors: Basu B. , Vleugels J. , Van Der Biest O. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: VUV Excited Luminescence of Europium Activated Calcium Borophosphate Prepared in Air.
Authors: Liang Hongbin , Su Qiang , Tao Ye , Hu Tiandou , Liu Tao 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Luminescence Properties of Oxyapatite NaY9Si6O26 Doped with Eu3+, Tb3+, Dy3+ and Pb2+.
Authors: Chuai X. H. , Zhang H. J. , Li F. Sh. , Lu Sh. Z. , Lin J. , Wang Sh. B. , Chi‐Chou Kou. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Thermoelectric Properties of Mo3Te4.
Authors: Kurosaki Ken , Kosuga Atsuko , Uno Masayoshi , Yamanaka Shinsuke 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Neutron Diffraction, NMR and Magneto‐Transport Properties in the Pr0.6Sr0.4MnO3 Perovskite Manganite.
Authors: Boujelben W. , Ellouze M. , Cheikh‐Rouhou A. , Pierre J. , Cai Q. , Yelon W. B. , Shimizu K. , Dubourdieu C. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 and Magnetic Properties of the New Hydride CeAuAlH1.4(1).
Authors: Chevalier B. , Bobet J.‐L. , Kahn M. L. , Weill F. , Etourneau J. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Magnetic Phase Transition and Magnetocaloric Effect in Mn5‐xFexSi3.
Authors: Sonlin Sonlin , Dagula Dagula , Tegus O. , Brueck E. , Klaasse J. C. P. , de Boer F. R. , Buschow K. H. J. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Phase Analysis and Dielectric Properties of Oxides Obtained in the MgO—(1‐x)Nb2O5—(x)Ta2O5 System.
Authors: Thirumal M. , Ganguli A. K. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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, Magnetic and Transport Properties of NpIrSn.
Authors: Javorsky P. , Havela L. , Wastin F. , Griveau J. C. , Rebizant J. , Lander G. H. , Rousse G. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Phase Diagram of the Quasi‐Binary Cu2GeS3—HgS System and Crystal Structure of the LT‐Modification of the Cu2HgGeS4 Compound.
Authors: Parasyuk O. V. , Gulay L. D. , Romanyuk Ya. E. , Olekseyuk I. D. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: X‐Ray Investigation of Metastable Crystalline Phases in Co‐Deposited Fe—Cr Alloy Nanometer Films.
Authors: Levin A. A. , Meyer D. C. , Tselev A. , Gorbunov A. , Pompe W. , Paufler P. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Hydrogen Uptake of Thin Epitaxial Vanadium (001) Films.
Authors: Andersson Gabriella , Aits Katrin , Hjoervarsson Bjoergvin 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Structures of the Trihalogenphosphonium Salts X3PH+As3F11‐ (X: Cl, Br).
Authors: Minkwitz Rolf , Dzyk Markus 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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, X‐Ray and Neutron Diffraction Characterization and Ionic Conduction Properties of a New Oxothiomolybdate Li3 [Mo8S8O8(OH)8{HWO5 (H2O)}]×18H2O.
Authors: Dolbecq Anne , du Peloux Charlotte , Auberty Anne‐Laure , Mason Sax A. , Barboux Philippe , Marrot Jerome , Cadot Emmanuel , Secheresse Francis 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Iron(III)‐Substituted, Dimeric Polyoxotungstates, [Fe4(H2O)10 (β‐XW9O33)2]n‐ (n = 6, X: AsIII, SbIII; n = 4, X: SeIV, TeIV).
Authors: Kortz Ulrich , Savelieff Masha G. , Bassil Bassem S. , Keita Bineta , Nadjo Louis 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Syntheses of Homopropargylic Alcohols and Dihydrofurans Catalyzed by a Bis(oxazolinyl)pyridine—Scandium Triflate Complex.
Authors: Evans David A. , Sweeney Zachary K. , Rovis Tomislav , Tedrow Jason S. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Chiral Phosphine—Phosphite Ligands in the Highly Enantioselective Rhodium‐Catalyzed Asymmetric Hydrogenation.
Authors: Deerenberg Sirik , Pamies Oscar , Dieguez Montserrat , Claver Carmen , Kamer Paul C. J. , van Leeuwen Piet W. N. M. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Asymmetric Diene Cyclization/Hydrosilylation Employing Functionalized Silanes and Disiloxanes.
Authors: Pei Tao , Widenhoefer Ross A. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Thio‐Claisen Rearrangement Induced by an Enantiopure Alkylsulfinyl Group. Unusual Preference for a Boat Transition State in the Acyclic Series.
Authors: Nowaczyk Stephanie , Alayrac Carole , Reboul Vincent , Metzner Patrick , Averbuch‐Pouchot Marie‐Therese 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: [(Indenyl)Ru(biphop‐F)]+: A Lewis Acid Catalyst that Controls Both the Diene and the Dienophile Facial Selectivity in Diels—Alder Reactions.
Authors: Kuendig E. Peter , Saudan Christophe M. , Alezra Valerie , Viton Florian , Bernardinelli Gerald 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Allylsilane Additions to Enantiopure N‐Acylhydrazones with Dual Activation by Fluoride and In(OTf)3.
Authors: Friestad Gregory K. , Ding Hui 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Permanganate‐Promoted Oxidative Cyclization of 1,5‐Dienes by Using Chiral Phase‐Transfer Catalysis.
Authors: Brown Richard C. D. , Keily John F. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Efficient Enantioselective Epoxidation of α,β‐Enones Catalyzed by Cheap Chiral Lanthanum and Gadolinium Alkoxides.
Authors: Chen Ruifang , Qian Changtao , de Vries Johannes G. 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Stereocontrolled Approaches to 2‐(2‐Aminoalkyl)‐1‐hydroxycyclopropanes.
Authors: Baird Mark S. , Huber Florian A. M. , Clegg William 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Chiral 2‐(2‐Diphenylphosphinophenyl)‐5,6,7,8‐tetrahydroquinolines: New P—N Ligands for Asymmetric Catalysis.
Authors: Chelucci Giorgio , Saba Antonio , Soccolini Franco 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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: Stereocontrolled “One‐Pot” Organometallic Addition—Ring Opening Reaction of α,β‐Aziridine Aldehydes. A New Entry to syn 1,2‐Amino Alcohols.
Authors: Righi Giuliana , Pietrantonio Simona , Bonini Carlo 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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 Ferrocene Modified P,N‐Ligands for Enantioselective Palladium‐Catalyzed Allylic Substitution Reactions.
Authors: You Shu‐Li , Hou Xue‐Long , Dai Li‐Xin 
Published: May 2010

AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 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.