SELENIUM-MERCURY INTERACTION - SYNTHESIS, SPECTROSCOPIC AND X-RAY STRUCTURAL STUDIES OF METHYLMERCURY-SELENOUREA COMPLEXES

被引：16

作者：

CARTY, AJ

MALONE, SF

TAYLOR, NJ

机构：

[1] Guelph-Waterloo Centre for Graduate Work in Chemistry, Department of Chemistry, University of Waterloo, Waterloo, Ont. N2L 3G1, Waterloo Campus

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1979年 / 172卷 / 02期

关键词：

D O I：

10.1016/S0022-328X(00)81048-7

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis of selenium bound selenourea complexes of methylmercury, [CH3HgSeC(NH2)2]X (X=Cl, Br, NO3, ClO4) are described. A single crystal X-Ray analysis of the nitrate salt has provided for the first time bond length data pertinent to the biologically important mercury-selenium interaction. Crystals of [CH3HgSeC(NH2)2] NO3 belong to the space group PnZic with a = 7.524(1), b = 11.204(2), c = 9.738(2)Å, and z = 4. The structure was solved and refined using 561 observed reflections measured on a Syntex P21 diffractometer to a final R value of 0.037. The mercury atom is linearly coordinated to the methyl group and the selenium atom of the selenourea with Hg-Se of 2.477(3)Å. Strong Hg-Se bonding is indicated by the X-Ray data and by the 1H - 199Hg nmr coupling constants. A comparison of spectroscopic data for analogous thio and selenourea complexes is presented. © 1979.

引用

页码：201 / 211

页数：11

共 15 条

[11] SELENIUM PROTECTION AGAINST MERCURY TOXICITY - BINDING OF METHYLMERCURY BY SELENOHYDRYL-CONTAINING LIGAND [J].

SUGIURA, Y ;

HOJO, Y ;

TAMAI, Y ;

TANAKA, H .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1976, 98 (08) :2339-2340

[12] SELENIUM PROTECTION AGAINST MERCURY TOXICITY - HIGH BINDING AFFINITY OF METHYLMERCURY BY SELENIUM-CONTAINING LIGANDS IN COMPARISON WITH SULFUR-CONTAINING LIGANDS [J].

SUGIURA, Y ;

TAMAI, Y ;

TANAKA, H .

BIOINORGANIC CHEMISTRY, 1978, 9 (02) :167-180

[13]

TAYLOR NJ, 1974, J CHEM SOC DA, P800

[14] X-RAY CRYSTALLOGRAPHIC AND SPECTROSCOPIC STUDIES OF BINDING OF METHYLMERCURY BY SULFUR AMINO-ACID DL PENICILLAMINE - MODELS FOR METHYLMERCURY POISONING OF PROTEINS [J].

WONG, YS ;

CARTY, AJ ;

CHIEH, C .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1977, (19) :1801-1808

[15]

1968, INT TABLES XRAY CRYS, V3, P202

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