Effects of the intramolecular NH•••S hydrogen bond in mononuclear platinum(II) and palladium(II) complexes with 2,2′-bipyridine and benzenethiol derivatives

被引：17

作者：

Kato, M ^{[1
]}

Okamura, TA ^{[1
]}

Yamamoto, H ^{[1
]}

Ueyama, N ^{[1
]}

机构：

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

来源：

INORGANIC CHEMISTRY | 2005年 / 44卷 / 06期

关键词：

D O I：

10.1021/ic0490167

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

A series of complexes, [M(bpy)(SAr)21 (M = platinum(II) or palladium(II), bpy = 2,2'-bipyridine, SAr = 2- or 4-(acylamino)benzenethiolate, or 2-(alkylcarbamoyl) benzenethiol ate), were synthesized and characterized on the basis of H-1 NMR, IR, and electrochemical properties. The structures of [Pt(bpy)(S-2-Ph3CCONHC6H4)(2)] (1) and (Pt(bpy)(S-2-t-BuNHCOC6H4)(2)] (3) were determined by X-ray analysis. The complexes have intramolecular (NHS)-S-... hydrogen bonds between the amide NH group and the sulfur atom. A weak (NHS)-S-... hydrogen bond in these complexes and [Pd(bpy)(S-2-Ph3CCONHC6H4)(2)] (4) is detected from the H-1 NMR spectra and the IR spectra in chloroform and. in the solid state. [Pt(bpy)(S-2-Ph3CCONHC6H4)(2)] (1) exhibits a remarkably high-energy-shifted lowest-energy band in UV-visible spectra and has a positively shifted oxidation potential. The blue-shift of 42 nm and the positive shift of +0.24 V, as compared to those of [Pt(bpy)(SC6H5)(2)], are due to the effect of the (NHS)-S-... hydrogen bond.

引用

页码：1966 / 1972

页数：7

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