Effects of the Intramolecular NH···S Hydrogen Bond in Mononuclear Platinum(II) and Palladium(II) Complexes with 2,2‘-Bipyridine and Benzenethiol Derivatives
作者:Masahiro Kato、Taka-aki Okamura、Hitoshi Yamamoto、Norikazu Ueyama
DOI:10.1021/ic0490167
日期:2005.3.21
A series of complexes, [M(bpy)(SAr)2] (M = platinum(II) or palladium(II), bpy = 2,2'-bipyridine, SAr = 2- or 4-(acylamino)benzenethiolate, or 2-(alkylcarbamoyl)benzenethiolate), were synthesized and characterized on the basis of 1H 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
一系列配合物,[M(bpy)(SAr)2](M =铂(II)或钯(II),bpy = 2,2'-联吡啶,SAr = 2-或4-(酰基氨基)苯硫醇酯,或合成了2-(烷基氨基甲酰基)苯硫醇盐),并根据1 H NMR,IR和电化学性质对其进行了表征。通过X射线分析确定[Pt(bpy)(S-2-Ph3CCONHC6H4)2](1)和[Pt(bpy)(S-2-t-BuNHCOC6H4)2](3)的结构。该配合物在酰胺NH基团和硫原子之间具有分子内NH ... S氢键。从1H NMR光谱和氯仿及固态红外光谱中检测到这些络合物和[Pd(bpy)(S-2-Ph3CCONHC6H4)2](4)中的弱NH ... S氢键。[Pt(bpy)(S-2-Ph3CCONHC6H4)2](1)在紫外可见光谱中表现出明显的高能移动最低能带,并具有正向移动的氧化电位。