Hu Mao Lin, Yuan Ji Xin, Chen Fan, Shi Qian
Department of Chemistry and Material Science, Wenzhou Normal College, Wenzhou 325027, People's Republic of China.
Acta Crystallogr C. 2004 Apr;60(Pt 4):m186-8. doi: 10.1107/S0108270104005773. Epub 2004 Mar 31.
In polymeric [Eu(pzdc)(NO(3))(phen)(H(2)O)].H(2)O [pzdc is 2,3-pyrazinedicarboxylate (C(6)H(2)O(4)) and phen is 1,10-phenanthroline (C(12)H(8)N(2))], each europium(III) ion is coordinated by seven O atoms (from three pzdc anions, a nitrate anion and a water molecule) and the two N atoms of the phen ligand, resulting in a nine-coordinated europium(III) center with a distorted monocapped square-antiprismatic coordination polyhedron. Four pzdc anions bridge four europium(III) ions, forming a parallelogram unit, the four vertices of which are occupied by the four pzdc anions. Moreover, each parallelogram unit links six other adjacent parallelogram units, forming a two-dimensional network with disordered lattice water molecules.
在聚合物[Eu(pzdc)(NO(3))(phen)(H(2)O)].H(2)O中[pzdc为2,3 - 吡嗪二甲酸酯(C(6)H(2)O(4))，phen为1,10 - 菲咯啉(C(12)H(8)N(2))]，每个铕(III)离子由七个O原子（来自三个pzdc阴离子、一个硝酸根阴离子和一个水分子）以及phen配体的两个N原子配位，形成一个具有扭曲单帽四方反棱柱配位多面体的九配位铕(III)中心。四个pzdc阴离子桥连四个铕(III)离子，形成一个平行四边形单元，其四个顶点由四个pzdc阴离子占据。此外，每个平行四边形单元连接六个其他相邻的平行四边形单元，形成一个带有无序晶格水分子的二维网络。
