【摘 要】
：
A novel heterometallic complex[Na2Cu2Gd2(pdc)4(H2O)14·2H2O](Hapdc=1H-pyrazole-3,5-dicarboxylic acid)has been synthesized and characterized by IR spectra,elemen
【机 构】
：
Applied Chemistry Department,Coordination Chemistry Institute
【基金项目】
：
国家高技术研究发展计划(863计划);国家重点基础研究发展规划(973计划);国家自然科学基金;the Postdoctoral Foundation of Jiangsu Province;江苏省自然科学基金;the State Postdoctoral Foundation of China
论文部分内容阅读
A novel heterometallic complex[Na2Cu2Gd2(pdc)4(H2O)14·2H2O](Hapdc=1H-pyrazole-3,5-dicarboxylic acid)has been synthesized and characterized by IR spectra,elemental analysis,and single-crystal X-ray analysis.The crystal belongs to the monoclinic system,space group P21/c with a=7.9521(18),b=12.251(3),c=22.293(5)(A),β=110.173(5)°,V=2038.5(8)(A)3,Mr=1388.13,Z=2,F(000)=1352,Dc=2.261 g/cm3,μ=4.380 mm-1,the final R=0.0409 and wR=0.0622 for 2453 observed reflections with I>2σ(I).The structural analysis shows that the NaI.CuII and GdII ions are finked together by two kinds of bridging figands(pdc3- and H2O、to form a main moiety[NazCu2Gd2(pdc)4(H2O)14],which Can be regarded as a centrosymmetric dimmer of [NaCuGd(pdc)2(H2O)7].Many hydrogen bonds exist in the complex to build a 3D supramolecular framework.
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