SYNTHESIS AND CRYSTAL-STRUCTURE OF A NOVEL CYCLIC TRINUCLEAR PLATINUM(II) COMPLEX, [PT(3)L-HMET)(3)]CENTER-DOT-H2O (H(3)MET=METHIONINE)

被引：14

作者：

DAVIDSON, YY

CHANG, SC

NORMAN, RE

机构：

[1] DUQUESNE UNIV,DEPT CHEM & BIOCHEM,PITTSBURGH,PA 15282

[2] DUQUESNE UNIV,DEPT PHYS,PITTSBURGH,PA 15282

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 1995年 / 01期

关键词：

D O I：

10.1039/dt9950000077

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Reaction of L-methionine hydrochloride [H4Met]Cl with 1 equivalent of K2[PtCl4] under basic conditions (pH 12.36) in aqueous solution gave pale yellow crystals of [Pt3(L-HMet)3].H2O, as evidenced by X-ray crystallography: monoclinic, space group P2(1), a = 8.396(2), b = 8.331(2), c = 16.872(2) angstrom, beta = 94.11(1)-degrees, Z = 2. The structure was refined to R = R' = 0.075 for 3791 reflections with I > 3.00sigma(I). It reveals a cyclic trinuclear platinum(II) complex with bridging amido nitrogens and an approximate threefold axis of symmetry. Each Pt(II) has roughly square-planar geometry with nitrogen, sulfur co-ordination from one methionine, and nitrogen, oxygen co-ordination from a second methionine.

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页码：77 / 81

页数：5

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