含N杂环硫醚四核Cu(I)配合物的合成及晶体结构

Synthesis and Crystal Structure of Tetra-Copper( I) Complex With N-heterocyclic Thioether Ligand

采用溶液扩散法,利用含N杂环硫醚配体2-巯基-(2-甲基吡啶)-4-甲基嘧啶(L)和金属盐CuI反应合成了配合物[Cu4I4L2],利用X线单晶衍射技术测定了其晶体结构,并对其进行了红外表征.结果表明,该配合物属单斜晶系,空间群为P21/n,晶胞参数:a=1.004 70(5)nm,b=0.893 04(4)nm,c=1.815 98(8)nm,β=99.847(10)°,V=1.605 36(13)nm3,Z=2,Mr=1 196.40.该配合物为四核结构,配合物分子间通过氢键、S…S和π-π等弱作用堆积成三维结构.

A novel Cu （I） complex [ Cu4I4L2] [ L = 2-methylpyridyl pyrimidyl sulfide ] has been synthesized through solution diffusion method and characterized by single crystal X-ray diffraction and IR spectrum. The title complex crystallizes in monoclinic crystal system with P21/n space group with a = 1.00470（5） nm, b =0.89304（4） nm, c=1.81598（8） nm, β =99.847（10） °, V=1.605 36（13） nm3, Z =2, and Mr = 1 196.40. The tetra-nuclear structure is composed of the molecule [Cu4I4L2] and its three-dimensional nets are constructed ultimately by supra-molecule weak interactions including hydrogen bond, S…S and π-π interaction.