Template-directed Synthesis of Three Metal Oxalates via 4-Connected Building Units  

作　　者：TIAN Ruijing WANG Fuxiang DU Chunyu FENG Lijuan LIU Ying ZHANG Cailing PAN Qinhe 

机构地区：[1]Key Study Center of the National Ministry of Education for Tropical Resources Utilization,Department of Materials and Chemical Engineering, Hainan University, Haikou 570228, P. R. China [2]State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changehun 130012, P. R. China

出　　处：《Chemical Research in Chinese Universities》2014年第6期889-893,共5页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China（Nos.21101047, 11204057）, the Program for New Century Excellent Talents in Universities of China（No.NCET-11-0929）, the Natural Science Foundation of Hainan Province, China（No. 112003）, the Scientific Research Foundation in University of Hainan Province, China（No.Hjkj2012-06） and the Young Scientist Foundation of Hainan University, China（Nos.qnjj 1237, qnjj 1251）.

摘　　要：Three novel compounds, [Co（en）3]2[Zr2（C2O4）7]·2H20（HNU-2, en=ethylenediamine）, [Co（NH3）6]· [Ce（CzO4）3（H2O）]·H2O（HNU-3） and [Co（dien）2][Gd（C2On）3]·0.75H2O（HNU-4, dien=dethylenetriamine） were hydro- thermal synthesized based on the templates of [Co（en）3]C13, [C0（NH3）6]C13 and [Co（dien）2]C13, respectively. The Zr4＋ Ce3＋ and Gd3＋ cations are all coordinated by four oxalates to form [M（C2O4）n（H2O）n]m （M=Zr, Ce or Gd; n=0 or 1; m=4 or 5）, which are similar to [In（C2O4）4]5- in NKB-1, and can be regarded as 4-connected building units. The [M（C2O4）a（H2O）n]m units are connected via sharing the bis-bidentate bridging oxalate ligands to form binuclears in HNU-2 and 1D ＂zigzag＂ chains in HNU-3 and HNU-4. cular building units to design 3D open frameworks with It is suggested that these compounds could be used as mole- zeolite topologies.Three novel compounds, [Co（en）3]2[Zr2（C2O4）7]·2H20（HNU-2, en=ethylenediamine）, [Co（NH3）6]· [Ce（CzO4）3（H2O）]·H2O（HNU-3） and [Co（dien）2][Gd（C2On）3]·0.75H2O（HNU-4, dien=dethylenetriamine） were hydro- thermal synthesized based on the templates of [Co（en）3]C13, [C0（NH3）6]C13 and [Co（dien）2]C13, respectively. The Zr4＋ Ce3＋ and Gd3＋ cations are all coordinated by four oxalates to form [M（C2O4）n（H2O）n]m （M=Zr, Ce or Gd; n=0 or 1; m=4 or 5）, which are similar to [In（C2O4）4]5- in NKB-1, and can be regarded as 4-connected building units. The [M（C2O4）a（H2O）n]m units are connected via sharing the bis-bidentate bridging oxalate ligands to form binuclears in HNU-2 and 1D ＂zigzag＂ chains in HNU-3 and HNU-4. cular building units to design 3D open frameworks with It is suggested that these compounds could be used as mole- zeolite topologies.

关 键 词：Coordination polymer Template-directed synthesis Metal oxalate 

分 类 号：TQ655[化学工程—精细化工] TB383[一般工业技术—材料科学与工程]