具有新颖嵌合作用的金属配合物的微波合成、晶体结构及性质研究  

Novel intercalation metal complexes: Microwave synthesis, crystal structure and properties

作　　者：张有明[1] 刘勇[1] 林奇[1] 华茂堂[1] 王伟峰[1] 马永钧[1] 魏太保[1] 

机构地区：[1]生态环境相关高分子材料教育部重点实验室甘肃省高分子材料重点实验室西北师范大学化学化工学院,兰州730070

出　　处：《中国科学：化学》2011年第5期869-877,共9页SCIENTIA SINICA Chimica

基　　金：国家自然科学基金(21064006);甘肃省然科学基金(1010RJZA018)资助

摘　　要：在微波辐射条件下合成了两种新的离子液体金属配合物[Ni(m-HNDA)2(H2O)4](1),[Zn(m-HNDA)2(H2O)4]·H2O(2),用元素分析、红外光谱、紫外光谱对它们进行了表征,通过X射线单晶衍射测定了它们的晶体结构.在晶体结构中,标题物通过基团间的嵌合作用,π-π相互作用和分子间氢键自组装成了三维网状的多孔结构.由氢键和π-π相互作用的强弱推测标题物的稳定性次序2>1,与实测热稳定性次序完全吻合;电化学性质表明,金属的配位改变了配体的循环伏安性质.另外,两种配合物可在水溶液中高选择性的识别氟离子.Two novel ionic liquids metal complexes [Ni（m-HNDA）2（H2O）4] （1）, [Zn（m-HNDA）2（H2O）4]·H2O （2） have been synthesized with MWI method and characterized by elemental analysis, IR and ultraviolet spectrum. The single crystal structures of the title compounds were determined by X-ray diffraction. In crystal, the title compounds self-assembled to three-dimensional porous structure by π-π interaction, hydrogen bonding and intercalation of groups. Moreover, according to the stabilities of the hydrogen bonds and the intermolecular π-π interaction, we could predict that the compound 2 more stable than 1, which is in good agreement with the available experiments thermal stabilities. The results of the electrochemical properties show the cyclic voltammetry of ligand changed for coordination of the metal. In addition, in aqueous solutions, two compounds show single selectivity for F-.

关 键 词：离子液体 微波合成 自组装 多孔结构 Π-Π相互作用 嵌合作用 

分 类 号：O641.4[理学—物理化学]