TRIGONAL-BIPYRAMIDAL COORDINATIVELY SATURATED PLATINUM(II) OLEFIN COMPLEXES BEARING AN ORGANOMERCURY FRAGMENT IN AXIAL POSITION

被引:27
作者
CUCCIOLITO, ME
GIORDANO, F
PANUNZI, A
RUFFO, F
DEFELICE, V
机构
[1] UNIV NAPOLI FEDERICO II,DIPARTIMENTO CHIM,VIA MEZZOCANNONE 4,I-80134 NAPLES,ITALY
[2] UNIV MOLISE,DISTAAM,I-86100 CAMPOBASSO,ITALY
来源
JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1993年 / 22期
关键词
D O I
10.1039/dt9930003421
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The reactions of organomercury halides HgR'(Cl) (R' = Me, Et, Bu(t) or Ph) with complexes of the type [Pt(dmphen){(Z)-RO2CCH = CHCO2R}] (dmphen = 2,9-dimethyl-1,10-phenanthroline; R = Me, Et or Bu(t)) have been studied. The dmphen ligand with suitable 'in-plane' steric hindrance stabilizes five-co-ordinate adducts of general formula [PtCl(HgR')(dmphen){(Z)-ROCCH-CHCO2R}] when R' = alkyl. An influence of the nature of the Hg-bound hydrocarbyl group on the reaction course is observed. Thus, a cluster containing the Pt-Hg-Pt sequence was obtained when R' = Ph or Cl. The molecular structure of [PtCl(HgMe)(dmphen){(Z)-MeO2CCH=CHCO2Me}] (space group P2(1)/c; a = 13.079(2), b =1 3.167(2), c = 15.495(3) angstrom and beta = 94.18(2)-degrees] reveals a large trans influence of the organomercury fragment.
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页码:3421 / 3426
页数:6
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