Synthesis and structural characterization of lanthanide coordination polymers constructed from a 13-membered macrocycle  

作　　者：YAO YingMing SHEN Qi WONG Wing Tak 

机构地区：[1]Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, China [2]Department of Chemistry, The University of Hong Kong, Polkfulam Road, Hong Kong, China

出　　处：《Chinese Science Bulletin》2007年第4期467-470,共4页

基　　金：Supported by the National Natural Science Foundation of China (Grant No. 20472063);the University of Hong Kong (WTW)

摘　　要：The lanthanide coordination polymers bearing a 13-membered macrocycle, [(13-EDTA-pnOH)H2] were synthesized. The products [Ln(13-EDTA-pnOH)(H2O)2·NO3]n (Ln = Eu(1), Tb(2), Dy(3)) have been obtained by MS, IR and element analyses. The solid-state structure of 1 was established by single-crystal X-ray analysis. The coordination geometry around the central metal atom in complex 1 is a nine-coor-dinated, tricapped-trigonal prism having six donor atoms (two amine nitrogen atoms, two amide oxygen atoms and two carboxymethyl oxygen atoms) from one ligand, one oxygen atom from a neighboring ligand, and two more oxygen atoms from two water molecules. The europium atoms are linked by―Eu―O―C―O―Eu―bridges to form an infinite chain.The lanthanide coordination polymers bearing a 13-membered macrocycle, [（13-EDTA-pnOH）H2] were synthesized. The products [Ln（13-EDTA-pnOH）（H2O）2·NO3]n （Ln = Eu（1）, Tb（2）, Dy（3）） have been obtained by MS, IR and element analyses. The solid-state structure of I was established by single-crystal X-ray analysis. The coordination geometry around the central metal atom in complex 1 is a nine-coordinated, trlcapped-trigonal prism having six donor atoms （two amine nitrogen atoms, two amide oxygen atoms and two carboxymethyl oxygen atoms） from one Iigand, one oxygen atom from a neighboring Iigand, and two more oxygen atoms from two water molecules. The europium atoms are linked by -Eu-O-C-O-Eu- bridges to form an infinite chain.

关 键 词：镧系元素复合物 配位聚合物 官能化大环 合成 结构表征 

分 类 号：O614.33[理学—无机化学] O641.4[理学—化学]