八核硫银簇合物的制备及晶体结构研究

摘要

为改善硫银簇合物的光吸收性能,通过将具有共轭平面结构的邻菲罗啉(phen)分子引入到硫银簇合物的表面,得到一个新型八核硫银簇合物[Ag8(CF3COO)6(SPri)2(phen)4](Ag8)(SPri=异丙基硫醇基).单晶结构分析表明该簇合物结晶于P-1空间群,晶胞参数a =12.1036(7)(A),b =12.4715(8)(A),c =14.5167(8)(A),α =65.751(2)°,β =79.187(2)°,γ =66.698(2)°.簇合物在溶液中的紫外吸收与簇合物表面的邻菲罗啉分子密切相关,通过分子间的π…π堆积作用,簇合物晶体形成了一维链状超分子结构.%The coplanar conjugation molecules, Phenanthroline (phen), have been modified on the surface of silver-chalcogenolate cluster for improving their absorption properties.New type of octanuclear silver-chalcogenolate cluster, [Ag8(CF3COO)6(SPri)2(phen)4](Ag8), has been obtained.The X-ray diffraction analysis revealed that Ag8 crystallizes in the space group P-1 with the following cell parameters: a =12.1036(7)(A), b =12.4715(8)(A), c =14.5167(8)(A), α =65.751(2)°, β =79.187(2)°, γ =66.698(2)°.The UV absorption of Ag8 in solution is closely related to the surface phen molecules.The crystal has a 1D supramolecular structure due to the adjacent molecules via π…π staking interactions.