三元配合物Ni[S_2P(OCH_2CH_2Ph)_2]_2·bipy的合成与晶体结构

Synthesis and Crystal Structure of Ternary Complex Ni[S_2P(OCH_2CH_2Ph)_2]_2·bipy

合成了三元配合物Ni[S2P(OCH2CH2Ph)2]2.bipy(bipy为α,α’-联吡啶),用元素分析和红外光谱进行表征,并测定了单晶结构。配合物属单斜晶系,空间群为P21/c,a=1.0859(5)nm,b=2.1751(7)nm,c=1.9083(8)nm,β=104.48(3)°,Z=4,Dc=1.354g/cm3,μ=0.75mm-1,S=1.044,(Δ/σ)max=3.085,R=0.076,wR=0.067[I(2.50σ(I)]。Ni离子与配体(PhCH2CH2O)2PSS-的S和bipy的N形成了变型八面体。Ni—S的键长在0.2488(5)～0.2513(5)nm范围,Ni—N的键长分别为0.2072(13)和0.2086(13)nm。相邻的对映体配合物分子间的bipy环之间存在π-π堆积作用。

A ternary complex Ni[ S2P （OCH2CH2Ph）2 ]2 bipy （bipy = α, α＇-bipyridine）was synthesized and characterized by elemental analysis, IR and single-crystal X-ray diffraction. It crystallizes in monoclinic, space group P21/ c with a =1.0859（5）nm, b =2.1751（7）nm, c =1.9083（8）nm, /3= 104.48（3）°, Z =4, Dc =1.354g/cm^3,μ= 0.75mm^-1, S =1.044, （△/σ）max=3.085, R =0.076, wR =0.067 [1〉2.50σ（Ⅰ）]. The nickel（Ⅱ） center is located at a distorted octahedral environment built by four sulfur atoms of （PhCH2 CH20）2PSS^- ligand and two nitrogen atoms of bipy ligand. The Ni-S distances rang from 2.488（5） to 2.513（5）A, and the Ni-N distance are 2.072（13） and 2.086（13） A, respectively. There are π-π stacking interactions between bipy cycles of adjacent enantiomer complex molecules.