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

摘要: 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.

Abstract: A novel Cu(I) complexCu₄I₄L₂ 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=1.004 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,and Mr=1 196.40. The tetra-nuclear structure is composed of the moleculeCu₄I₄L₂and its three-dimensional nets are constructed ultimately by supra-molecule weak interactions including hydrogen bond,S…S and π-π interaction.