On the borderline between cis and trans in organometallic (phosphane)platinum(II) complexes

被引：19

作者：

Gudat, D

Jain, VK

Klein, A

Schurr, T

Zális, S

机构：

[1] Univ Cologne, Inst Anorgan Chem, D-50939 Cologne, Germany

[2] Univ Stuttgart, Inst Anorgan Chem, D-70569 Stuttgart, Germany

[3] Bhabha Atom Res Ctr, Novel Mat & Struct Chem Div, Bombay 400085, Maharashtra, India

[4] Acad Sci Czech Republ, Inst Chem Phys, Prague 18000 8, Czech Republic

来源：

EUROPEAN JOURNAL OF INORGANIC CHEMISTRY | 2005年 / 20期

关键词：

density functional calculations; isomers; NMR spectroscopy; phosphatic ligands; platinum;

D O I：

10.1002/ejic.200500251

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The borderline between the cis and trans configurations in square-planar diarylplatinum(ii) complexes with triethylphosphane ligands [Pt(Ar)(2)(PEt3)(2)] [Ar = 2,4,6-trimethylphenyl (mesityl), 2,6-dimethylphenyl, 2-methylphenyl, 3-methylphenyl, 4-methylphenyl and phenyl] has been investigated by a combination of multinuclear (H-1, C-13, P-31 and Pt-195) NMR spectroscopy, X-ray crystallography and quantum chemical (DFT) calculations. When formed under thermodynamic conditions, the complexes show a clear cutoff between cis (tolyl and phenyl complexes) and trans (2,6-xylyl and mesityl complexes). The syn and anti stereoisomers were identified for the 2-methylphenyl and 3-methylphenyl derivatives. Calculated data (structural isomers or NMR) are in excellent agreement with experimental findings. (c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005.

引用

页码：4056 / 4063

页数：8

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