GOLD(I) COMPLEXES OF THIOCARBAMATE AND DITHIOCARBAMATE ESTERS - THE STRUCTURE OF BIS(N-METHYL-O-ETHYL-THIOCARBAMATE)GOLD(I) CHLORIDE

被引:13
作者
CASELLATO, U
FRACASSO, G
GRAZIANI, R
SINDELLARI, L
GONZALEZ, AS
NICOLINI, M
机构
[1] CNR,IST CHIM & TECNOL RADIOELEMENTI,I-35100 PADUA,ITALY
[2] UNIV PADUA,DIPARTIMENTO CHIM INORGAN MET ORGAN & ANALIT,I-35100 PADUA,ITALY
[3] UNIV SANTIAGO DE COMPOSTELA,DEPT QUIM INORGAN,SANTIAGO,SPAIN
[4] UNIV PADUA,DIPARTIMENTO SCI FARMACEUT,I-35100 PADUA,ITALY
关键词
D O I
10.1016/S0020-1693(00)83933-X
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
The complexes Au(TMDT)Br, Au(TMDT)Cl, [Au(PPh3)(TMDT)]NO3 and Au(MTC)2Cl (TMDT = N,N-dimethyl-S-methyl-dithiocarbamate, MTC = N-methyl-O-ethyl-thiocarbamate) have been prepared and characterized. The crystal structure of Au(MTC)2Cl was determined by X-ray crystallography and refined to R = 0.035 based on 2654 observed reflections. The compound is triclinic, space group P1, with a = 6.937(6), b = 9.439(5), c = 12.286(4) Å, α = 74.16(3), β = 99.54(3), γ = 108.06(3)°. The structure consists of Au(MTC)2+ cations significantly distorted from the linear coordination, with a SAuS angle of 155.3(1)° and AuS bond distances of 2.286(2) and 2.284(2) Å, and uncoordinated Cl- anions hydrogen bonded to the two MTC ligands in each cation, with NH···Cl distances of 3.04(1) Å. 1H NMR spectra of the dithiocarbamate complexes are consistent with coordination of the ligand through its thiocarbonyl sulfur atom. © 1990.
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页码:21 / 24
页数:4
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