Hydrothermal Synthesis and Crystal Structure of a New Three-dimensional Heterometallic Coordination Polymer
薛丽平
洛阳师范学院
drothermal Synthesis and Crystal Structure of a New Three-dimensional Heterometallic Coordination Polymer
XUE Li-Ping;LI Zhao-Hao;MIAO Shao-Bin
Luoyang Normal University
摘要 A new 3d -4f heterometallic polymer {[Sm2 Cu(PDC)2 (SO4 )2 (H2 O)6 ]·2H2 O} n 1 has been synthesized by Sm2 O3 , Cu(SO4 )2 ·5H2 O and pyridine-3,5-dicarboxylic acid under hydrothermal conditions. The compound crystallizes in triclinic system, space group P , with a = 6.352(7), b = 10.040(10), c = 10.315(11) Å, α = 94.958(14), β = 95.556(7), γ = 99.747(14)°, V = 641.7(12) Å3 , Z = 1, Mr = 1030.63, Dc = 2.651 Mg/m3 , μ = 5.615 mm -1 , F (000) = 491, the final R = 0.0491 and wR = 0.1345 for 2098 observed reflections with I > 2σ (I ). The compound is a three-dimensional network structure in which infinite lanthanide-carboxylate chains are linked by [Cu(SO4 )2 ]2- metalloligands to form a mixed-metal coordination network .
关键词 ：
hydrothermal synthesis ,
crystal structure ,
3d-4f hybrid polymer ,
thermal property
Abstract ：A new 3d -4f heterometallic polymer {[Sm2 Cu(PDC)2 (SO4 )2 (H2 O)6 ]·2H2 O} n 1 has been synthesized by Sm2 O3 , Cu(SO4 )2 ·5H2 O and pyridine-3,5-dicarboxylic acid under hydrothermal conditions. The compound crystallizes in triclinic system, space group P , with a = 6.352(7), b = 10.040(10), c = 10.315(11) Å, α = 94.958(14), β = 95.556(7), γ = 99.747(14)°, V = 641.7(12) Å3 , Z = 1, Mr = 1030.63, Dc = 2.651 Mg/m3 , μ = 5.615 mm -1 , F (000) = 491, the final R = 0.0491 and wR = 0.1345 for 2098 observed reflections with I > 2σ (I ). The compound is a three-dimensional network structure in which infinite lanthanide-carboxylate chains are linked by [Cu(SO4 )2 ]2- metalloligands to form a mixed-metal coordination network .
Key words ：
hydrothermal synthesis
crystal structure
3d-4f hybrid polymer
thermal property
收稿日期: 2011-08-26
通讯作者:
薛丽平
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