ICCAS OpenIR
Synthesis, crystal structure and catalysis for polyethylene of a paramagnetic chromium complex [(eta(5)-Cp-Si) Cr(mu-Cl)Cl](2) [Cp-Si = (C5H4)Si(CH3)(2)(C6H5)]
Xu, YK; Mu, Y; Sun, H; Qu, ZW; Zhang, F; Zhang, YT; Liu, Y
2002-04-15
Source PublicationPOLYHEDRON
ISSN0277-5387
Volume21Issue:8Pages:867-872
AbstractThe synthesis of the substituted silyl cyclopentadiene ligand (C5H5)Si(CH3)(2)(C6H5) ((CpH)-H-Si) (1) is described. Deprotonation of (1) gives ((CpLi)-Li-Si) (2) which reacts with CrCl3 to produce the chloro-bridged complex [(eta(5)-Cp-Si)Cr(mu-Cl)Cl](2) (3). Single-crystal X-ray structure analysis reveals that a centrosymmetric dimer exists in the solid state. When activated with methylaluminoxane (MAO), complex (3) exhibits several interesting features as a catalyst for ethylene polymerization. With the help of a semi-empirical MO calculation, a cationic sandwich intermediate structure in the catalytic process was proposed. (C) 2002 Elsevier Science Ltd. All rights reserved.
KeywordChromium Crystal Structures Homogeneous Catalyst Electron Spin Resonance Polyethylene
Indexed ByIC ; SCI
Language英语
WOS IDWOS:000175583000010
PublisherPERGAMON-ELSEVIER SCIENCE LTD
Citation statistics
Cited Times:3[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.iccas.ac.cn/handle/121111/79142
Collection中国科学院化学研究所
Corresponding AuthorXu, YK
Affiliation1.Chinese Acad Sci, Ctr Mol Sci, Inst Chem, State Key Lab Struct Chem Unstable & Stable Speci, Beijing 100080, Peoples R China
2.Jilin Univ, Dept Chem, Changchun 130023, Peoples R China
Recommended Citation
GB/T 7714
Xu, YK,Mu, Y,Sun, H,et al. Synthesis, crystal structure and catalysis for polyethylene of a paramagnetic chromium complex [(eta(5)-Cp-Si) Cr(mu-Cl)Cl](2) [Cp-Si = (C5H4)Si(CH3)(2)(C6H5)][J]. POLYHEDRON,2002,21(8):867-872.
APA Xu, YK.,Mu, Y.,Sun, H.,Qu, ZW.,Zhang, F.,...&Liu, Y.(2002).Synthesis, crystal structure and catalysis for polyethylene of a paramagnetic chromium complex [(eta(5)-Cp-Si) Cr(mu-Cl)Cl](2) [Cp-Si = (C5H4)Si(CH3)(2)(C6H5)].POLYHEDRON,21(8),867-872.
MLA Xu, YK,et al."Synthesis, crystal structure and catalysis for polyethylene of a paramagnetic chromium complex [(eta(5)-Cp-Si) Cr(mu-Cl)Cl](2) [Cp-Si = (C5H4)Si(CH3)(2)(C6H5)]".POLYHEDRON 21.8(2002):867-872.
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