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作 者:陈鹏[1,2] 杜琳[1] 周杰[1] 乔永峰[1] 李彬[1] 赵琦华[1]
机构地区:[1]云南大学化学科学与工程学院,昆明650000 [2]铜仁学院生物与化学工程系,铜仁554300
出 处:《无机化学学报》2014年第5期1038-1044,共7页Chinese Journal of Inorganic Chemistry
基 金:国家自然科学基金(No.21371151);云南省教育厅项目(NO.2011Y111)资助项目
摘 要:通过水热合成法,合成了4个配位聚合物:[Mn(H:O)(PTZDA)(BDC)]n(1)、[Co(H20)(PTZDA)(BDC)]n(2)、[Zn(H:O)(PTZDA)(BDC)]n(3)、[Cd(H2O)(PTZDA)(BDC)]n(4)(PTZDA=2,4.二氨基-6-(2’-吡啶)一均三嗪,H2BDC=对苯二甲酸),并分别用x射线单晶衍射、元素分析、红外光谱、差热分析和x.射线粉末衍射表征了这4个配合物。晶体结构分析表明,在配合物1~4中,配体PTZDA与中心金属离子螯合配位,金属离子通过配体BDC^2-连结成一维链状结构,一维链之间通过氢键作用连接成三维超分子结构。磁性和荧光分析表明,配合物1和2具有非常弱的反铁磁作用;配合物3和4的荧光均为配体发光。Four polymers ([Mn(H20)(PTZDA)(BDC)ln(1), [Co(H2O)(PTZDA)(BDC)ln(2), [Zn(H20)(PTZDA)(BDC)],(3), [Cd (H20)(PTZDA)(BDC)]n(4) (PTZDA-6-(pyridyl-2-yl)-l,3,5-triazine-2,4-diamine, BDC =terephthalate) have been synthesized by hydrothermal reactions and structurally charecaterized by single crystal X-ray diffraction, elemental analysis, 1R, TG and PXRD. Structural analysis reveals that the metal ions of compounds 1-4 are bridged by two carboxyl group from, terephthalate acid and are chelated by two nitrogen atoms from PTZDA ligand to form a one dimensional chain. These chains are further extended to 3D supramolecular structure by hydrogen bonds. The magnetic properties of compound 1-2 have been studied, indicating that they exist weak anti-ferromagnetism. Luminescent properties of compounds 3~4 indicates complex 3 and 4 possessing quality of photo-luminescent, which is assigned to the ligands. CCDC: 942597, 1; 942598, 2; 942599, 3; 942600, 4.
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