CONFORMATION AND LIGAND-EXCHANGE REACTIONS OF TRANS-[PDCL(C6H4-2-N2PH)(PR3)2] AND RELATED COMPLEXES

被引：11

作者：

ANDERSON, GK

CROSS, RJ

LEAMAN, SA

ROBERTSON, FJ

RYCROFT, DS

ROCAMORA, M

机构：

[1] UNIV GLASGOW,DEPT CHEM,GLASGOW G12 8QQ,SCOTLAND

[2] UNIV BARCELONA,FAC QUIM,DEPT QUIM INORGAN,E-08028 BARCELONA,SPAIN

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1990年 / 388卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-328X(90)85365-6

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Rotation about the metal-carbon bond in trans-[MCl(C6H4-2-N2Ph)(PMe2Ph)2] (M = Pd, Pt) is slow at 273 K, and phosphine exchange occurs at ambient temperature. Chloride removal from trans-[PdCl(C6H4-2-N2Ph)L2] (L = PMe2Ph, PMe3, PEt3) by silver(I) or methyl trifluoromethanesulfonate is complicated by phosphine abstraction, but reaction of [PdCl(C6H4-2-N2Ph-C,N)L] with AgSO3CF3 in the presence of 2,6-lutidine (2,6-dimethylpyridine) or 2-fluoropyridine produces [Pd(am)(C6H4-2-N2Ph-C,N)L]SO3CF3. Addition of phosphine yields trans-[Pd(am)(C6H4-2-N2Ph)L2]SO3CF3. At or below ambient temperature the 2,6-lutidine complexes exhibit non-equivalent methyl signals in their 1H NMR spectra, and the 2-fluoropyridine species exist as syn and anti isomers. These observations are consistent with slow rotation about the PdC and PdN bonds in complexes containing PMe3 and PEt3, as well as in those containing PMe2Ph. © 1989.

引用

页码：221 / 231

页数：11

共 23 条

[1] PREPARATION AND SPECTROSCOPIC PROPERTIES OF ELECTRONEUTRAL ALKOXY-(ORGANO)CARBENE COMPLEXES OF PLATINUM(II) AND THE CRYSTAL AND MOLECULAR-STRUCTURE OF CIS-[BENZYL(ETHOXY)CARBENE]DICHLORO(DIMETHYL-PHENYLPHOSPHINE)PLATINUM(II) [J].