O-atom-transfer oxidation of [molybdenum(IV) oxo{3,6-(acylamino)2-1,2-benzenedithiolato}2]2- promoted by intramolecular NH•••S hydrogen bonds

被引：30

作者：

Baba, K

Okamura, T ^{[1
]}

Suzuki, C

Yamamoto, H

Yamamoto, T

Ohama, M

Ueyama, N

机构：

[1] Osaka Univ, Grad Sch Sci, Dept Macromol Sci, Toyonaka, Osaka 5600043, Japan

[2] Natl Inst Agroenvironm Sci, Chem Anal Res Ctr, Tsukuba, Ibaraki 3058604, Japan

来源：

INORGANIC CHEMISTRY | 2006年 / 45卷 / 02期

关键词：

D O I：

10.1021/ic051493h

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Novel molybdenum dithiolene compounds having neighboring amide groups as models for molybdoenzymes, (NEt4)(2)[(MoO)-O-IV{ 1,2-S-2-3,6-(RCONH)(2)C6H2}(2)] (R = CH3, CF3, t-Bu, Ph3C, were designed and synthesized. The contributions of the (NHS)-S-... hydrogen bond to the electrochemical properties of the metal ion and the reactivity of the O-atomtransfer reaction were investigated by a comparison with [(MoO)-O-IV(1,2-S2C6H4)(2)](2-). The MoOS4 core of [Mo-IV{1,2-S-2-3,6-(CH3CONH)(2)C6H2}2](2-) shows no significant geometrical difference from that of [MoIVO(1,2-S2C6H4)2](2-) in the crystal. The hydrogen bonds positively shifted the Mo-IV/IV redox potential and accelerated the reduction of Me3NO.

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页码：894 / 901

页数：8

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