Synthesis and Characterization of Three Diverse Coordination Frameworks under Co-ligand Intervention
The chelating organic ligands of 2,2'-bipyridine (2,2'-bipy), di(pyrid-2-yl)amine (dpa) and 2,6-di(pyrid-2-yl-arnino)pyridine (dpap) were respectively applied to react with H2fum (fumaric acid) and copper salts, affording penta-coordinated Cu(Ⅱ) ion exhibits a distorted trigonal bipyramidal geometry in 1. The fum ligand links copper ions to form a dinuclear copper unit. While in 2, the fum ligands connect [Cu2(μ-OH)2(dpa)2] unit to construct a ID zigzag chain. Unexpectedly, when dpap instead of dpa was used under the same conditions, only one mononuclear complex 3 was formed. Crystal packings show that 1-3 form 3D supramolecular architectures through magnetic property reveals dominating ferromagnetic interactions between Cu(Ⅱ) atoms in 1.
作 者： LIU Ping LIU Jianqiang WANG Yaoyu LIANG Yanping WU Zhensen SHI Qizhen 作者单位： LIU Ping(School of Science, Xidian University, Xi'an, Shaanxi 710071, China;Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education (Shaanxi Key Laboratory of Physico-lnorganic Chemistry), Department of Chemistry, Northwest University, Xi'an, Shaanxi 710069, China)LIU Jianqiang,WANG Yaoyu,SHI Qizhen(Key Laboratory of Synthetic and Natural Functional Molecule Chemistry of Ministry of Education (Shaanxi Key Laboratory of Physico-lnorganic Chemistry), Department of Chemistry, Northwest University, Xi'an, Shaanxi 710069, China)
LIANG Yanping,WU Zhensen(School of Science, Xidian University, Xi'an, Shaanxi 710071, China)
刊 名： 中国化学（英文版） SCI 英文刊名： CHINESE JOURNAL OF CHEMISTRY 年，卷(期)： 2009 27(2) 分类号： O6 关键词： copper complex weak interaction chelating ligand crystal structure