Structure and physical properties of several pseudotetrahedral zinc complexes containing a new alkyl thiolate heteroscorpionate ligand

被引：59

作者：

Hammes, BS ^{[1
]}

Carrano, CJ ^{[1
]}

机构：

[1] SW Texas State Univ, Dept Chem, San Marcos, TX 78666 USA

来源：

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS | 2000年 / 19期

基金：

美国国家航空航天局; 美国国家科学基金会;

关键词：

D O I：

10.1039/b004037l

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of pseudotetrahedral and octahedral zinc(II) complexes of the heteroscorpionate ligand bis(3,5-dimethylpyrazolyl)(1-methyl-1-sulfanylethyl)methane (L3SH) have been synthesized and most characterized by X-ray crystallography. Pseudotetrahedral complexes isolated include [Zn(L3S)(CH3)], [Zn(L3S)(Cl)], [Zn(L3S)(OAc)], [Zn(L3S)(SPhF5)], [Zn(L3S)(SBz)] (Bz = CH2Ph), [Zn(L3S)(OPhp-NO2)], and [Zn(L3S)(2)]. In addition, the octahedral complex [Zn-2{(L3S)(2)Zn}{O2P(OPh)(2)}(4)] was also synthesized. Comparisons between these complexes and those of the corresponding tris(pyrazolyl)borate, Tp(-), or aromatic phenol or benzenethiolate ligands (L1O)(-) and (L2S)(-) reveal significant differences. Among these is a change in binding of acetate from pure unidentate to anisobidentate as the ligand donor is changed from S to N to O. Trends such as these may aid in understanding how the donor set affects the structure and reactivity at pseudotetrahedral zinc centers in metalloproteins.

引用

页码：3304 / 3309

页数：6

共 38 条

[11] Modeling the active sites of bacteriophage T7 lysozyme, bovine 5-aminolevulinate dehydratase, and peptide deformylase:: synthesis and structural characterization of a bis(pyrazolyl)(thioalkoxy)hydroborato zinc complex, [(Ph2CHS)BpBu-t,Pr-i]ZnI [J].

Ghosh, P ;

Parkin, G .

CHEMICAL COMMUNICATIONS, 1998, (03) :413-414

[12] Mimicking the binding of glutamate to zinc in thermolysin and carboxypeptidase:: the synthesis of [η3-(HCO2)BpBu-t,Pr-i]ZnCl by insertion of CO2 into a B-H bond of the bis(pyrazolyl)hydroborato zinc complex [BpBu-t,Pr-i]ZnCl [J].

Ghosh, P ;

Parkin, G .

JOURNAL OF THE CHEMICAL SOCIETY-DALTON TRANSACTIONS, 1998, (14) :2281-2283

[13] The structure and characterization of zinc heteroscorpionate complexes containing pentafluorothiophenol [J].

Hammes, BS ;

Carrano, CJ .

INORGANICA CHIMICA ACTA, 2000, 300 :427-433

[14] The synthesis and characterization of 4, 5, and 6 coordinate Ni(II) complexes of the "heteroscorpionate'' ligand (3-tert-butyl-2-hydroxy-5-methylphenyl)bis(3,5-dimethylpyrazolyl)methane [J].

Hammes, BS ;

Carrano, CJ .

INORGANIC CHEMISTRY, 1999, 38 (15) :3562-3568

[15]

HAMMES BS, 2000, IN PRESS J INORG BIO

[16] UNIDENTATE VERSUS BIDENTATE COORDINATION OF NITRATE LIGANDS - RELEVANCE TO CARBONIC-ANHYDRASE ACTIVITY [J].

HAN, R ;

PARKIN, G .

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1991, 113 (25) :9707-9708

[17] A new class of biomimetically relevant ''scorpionate'' ligands .1. The (2-hydroxyphenyl)bis(pyrazolyl)methanes: Synthesis and structural characterization of some cobalt(II) complexes [J].

Higgs, TC ;

Carrano, CJ .

INORGANIC CHEMISTRY, 1997, 36 (03) :291-297

[18] PHOSPHATE ESTER CLEAVAGE WITH A ZINC HYDROXIDE COMPLEX - FORMATION AND CRYSTAL-STRUCTURE OF A DINUCLEAR ZINC COMPLEX BRIDGED WITH A PHOSPHATE MONOESTER [J].

HIKICHI, S ;

TANAKA, M ;

MOROOKA, Y ;

KITAJIMA, N .

JOURNAL OF THE CHEMICAL SOCIETY-CHEMICAL COMMUNICATIONS, 1992, (11) :814-815

[19]

Johnson C. K., 1976, ORNL5138

[20] Structural studies of the [tris(imidazolyl)phosphine]metal nitrate complexes {[PimPri,But]M(NO3)}+ (M = Co, Cu, Zn, Cd, Hg):: Comparison of nitrate-binding modes in synthesis analogues of carbonic anhydrase [J].

Kimblin, C ;

Murphy, VJ ;

Hascall, T ;

Bridgewater, BM ;

Bonanno, JB ;

Parkin, G .

INORGANIC CHEMISTRY, 2000, 39 (05) :967-974

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