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Trimethyltriazine-derived olefin-linked covalent organic framework with ultralong nanofibers被引量：9: 《Science Bulletin》2020年第19期1659-1666,M0004,共9页Fan Zhang Shice Wei Weiwei Wei Jiang Zou Guoying Gu Dongqing Wu Shuai Bi Fan Zhang; the National Natural Science Foundation of China(21774072,and 21720102002);financially supported by the Open Project Programs of the State Key Laboratory of Inorganic Synthesis and Preparative Chemistry(2019-01,Jilin University);the State Key Laboratory for Modification of Chemical Fibers and Polymer Materials(KF2019,Donghua University)。; Two-dimensional(2D)olefin-linked covalent organic frameworks(COFs)with excellentπ-electron communication and high stability are emerging as promising crystalline polymeric materials.However,because of the limited spe...; 关键词：Covalent organic framework Olefin linkage NANOFIBER Micro-supercapacitor Energy storage

Concerted steric and electronic effects on α-diimine nickel-and palladium-catalyzed ethylene polymerization and copolymerization被引量：15: 《Science Bulletin》2020年第4期300-307,共8页Qasim Muhammad Chen Tan Changle Chen; supported by the National Natural Science Foundation of China (21690071 and 21871242);the Fundamental Research Funds for the Central Universities.; For transition metal-based olefin polymerization catalysts, ligand steric and electronic effects can strongly influence important catalytic properties. However, the simultaneous tuning of both steric and electronic ef...; 关键词：OLEFIN polymerization STERIC EFFECT Electronic EFFECT NICKEL Palladium

Synthesis of silicon-functionalized polyolefins by subsequent cobalt-catalyzed dehydrogenative silylation and nickel-catalyzed copolymerization被引量：7: 《Science Bulletin》2018年第7期441-445,共5页Shixin Zhou Changle Chen; supported by the National Natural Science Foundation of China(21690071 and 51522306); Metal catalyzed olefin hydrosilylation and metal mediated olefin polymerization are both of great academic and industrial importance, In this article, these two aspects are combined to prepare silicon- functionalized ...; 关键词：Dehydrogenative silylation Nickel catalyst Olefin copolymerization Polar monomer

SELECTIVE FORMATION OF OXYGENATED COMPOUNDS BY SILICA-SUPPORTED Ru-Co BIMETALLIC CLUSTER-DERIVED CATALYSTS IN CO HYDROGENATION: 《Chinese Science Bulletin》1992年第4期347-348,共2页肖丰收郭燮贤 ICHIKAWA MASARU; It is well known that catalysts prepared from organometallic compounds exhibit high activity and selectivity for oxygenates in CO-based reactions such as CO hydrogenation and olefin hydroformylation, in contrast to th...; 关键词：hydrogenation selectivity SALTS OLEFIN usual alcohols silica CARBONYL ALDEHYDE MOLAR

A NEW METHOD FOR THE GENERATION OF DIHALOCARBENES: 《Chinese Science Bulletin》1991年第10期831-834,共4页黄乃聚徐良衡; Addition of dihalocarbene with olefin is the most important method to prepare the derivatives of gem-dihalocyclopropanes. Up till now, the method reported by Makosza in 1969, which is α-elimination of haloform by str...; 关键词：CARBENE gem-dihalocyclopropane OLEFIN addition.

EFFECTS OF CENTRAL METALS AND σ-LIGANDS IN 1,1'-TRIMETHYLENEDICY-CLOPENTADIENYL RARE EARTH(Ⅲ) COMPLEXES ON REDUCTION OF OLEFIN: 《Chinese Science Bulletin》1989年第5期410-413,共4页叶常青李玉琴钱长涛; Sodium hydride is widely used as Lewis base in organic syntheses, but cannot reduce the carbon-carbon double bond alone. Recently, we have found that tricyclopentadienyl rare earth complexes-sodium hydride systems are...; 关键词：rare earth complex SUBSTITUTED CYCLOPENTADIENE REDUCTION of olefin.

THE ELECTRONIC STRUCTURE AND CHEMICAL BONDING IN SOME TITANIUM ALUMOHYDRIDES被引量：1: 《Chinese Science Bulletin》1988年第22期1917-1918,共2页蔡国强吴念慈董南; We have studied the electronic structures in titanium alumohydride compounds （in which Al is five-coordinate） Cp2Ti（u-H）2AlH2NH3（Ⅱ）, Cp2Ti（u-H）2AlCl2H2O（Ⅲ） and Cp2Ti（u-H）2AlH3（Ⅳ） (coming from real mol...; 关键词：coordinate TITANIUM ORDERS AIH COMING OLEFIN bonding reasons hydrogenation OPPOSED

CRYSTAL AND MOLECULAR STRUCTURES OF η4-OLEFIN CARBENE COMPLEX[(η4—C6H5CH=CH（?）CH（C6H4CH3—m）N（C6H5） C（OC2H5）=]Fe（CO）2·1/2C6H5·CH3: 《Chinese Science Bulletin》1988年第17期1431-1435,共5页张泽莹唐有祺殷建国陈家碧徐维华; Project supported by the National Natural Science Foundation of China; <正> Ⅰ. INTRODUCTION The transition metal carbene compound with olefin ligand is an important intermediate in the metathesis of olefin, cyclopropanation of alkenes and Ziegler-Natta Polymerization of olefin. The synt...; 关键词：erystal & molecular strueture CARBENE eomplex iron CARBENE COMPOUND OLEFIN METAL CARBENE COMPOUND transition METAL COMPOUND

NMR STUDIES OF URUSHIOL OF CHINA URUSHI: 《Chinese Science Bulletin》1984年第4期485-489,共5页林乔源许奎钫胡邦豪彭浩波刘秀湘; In a previous paper, the authors have reported structures of the saturated urushiol, the monoene urushiol, the lone-diene urushiol and the conjugated-triene urushiol existing in China urushi. Corbett and Billets have ...; 关键词：saturated DIENE conjugated OLEFIN SEPARATING saturation dissolved INGREDIENT INSOLUBLE somewhat

A QUANTUM CHEMICAL STUDY OF THE -ENE REACTION OF OLEFINS WITH SINGLET OXYGEN: 《Chinese Science Bulletin》1983年第10期1349-1354,共6页张建成刘新厚武尉刘若庄; Ⅰ. INTRODUCTION The reaction of singlet oxygen （1O2） with olefins containing allylic hydrogen atom or atoms gives an allyl hydroperoxide in which the double bond migrates to the α-position.; 关键词：ALLYL SINGLET UNSATURATED bonding LOGARITHM straight explained OLEFIN trimethyl favorable

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