Synthesis and structural characterisation of nickel(II) alkyl complexes NiR2, [Ni(Cp)R]2 and a 'head-to-tail' coupled alkyl intermediate compound [NiR(Cl)(R-R)] [R = C(SiMe3)2C5H4N-2, CPh(SiMe3)C5H4N-2 or CH(SiMe3)C5H4N-2; Cp = η5-C5H5]

被引：8

作者：

Leung, WP ^{[1
]}

Lee, HK ^{[1
]}

Zhou, ZY ^{[1
]}

Mak, TCW ^{[1
]}

机构：

[1] Chinese Univ Hong Kong, Dept Chem, Shatin, New Territories, Hong Kong

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1998年 / 564卷 / 1-2期

关键词：

nickel(II); alkyls; pyridine substituted alkyls; cyclopentadienyl;

D O I：

10.1016/S0022-328X(98)00629-9

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Thermally stable nickel(II) alkyls NiR2 [R = R-1 = C(SiMe3)(2)C5H4N-2 (1); R = R-2 = CPh(SiMe3)C5H4N-2 (2),] and [CpNiR](2) [Cp = eta(5)-C5H5; R = R-3 = CH(SiMe3)C5H4N-2 (4)] containing pyridine-functionalised alpha-substituted alkyl ligands have been prepared by the alkylation of nickel(II) dihalide complexes [NiX2L2] (X = Cl, Br; L-2 = 2 PPh3, N,N,N',N'-tetramethylethylenediamine) or nickelocene with appropriate lithium alkyls. However, similar alkylation reaction of [LiR1](2) with [NiCl2(diphos)] (diphos = Ph2PCH2CH2PPh2) afforded a novel nickel(II)alkylchloride complex [NiR1(Cl)(R-1-R-1)] (3), in which a 'head-to-tail' coupled organic compound 2-CH(SiMe3)(2)C5H4N-5-C(SiMe3)(2)C5H4N (R-1-R-1) remained coordinated to the nickel centre via one of the pyridyl nitrogens. Compounds 1-4 have been confirmed by X-ray structure analysis. (C) 1998 Elsevier Science S.A. All rights reserved.

引用

页码：193 / 200

页数：8

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