| 铀-钾异核配位聚合物的合成及晶体结构(英文) |
| Synthesis, Crystal Structure of Uranium-Potassium Heteronuclear Coordination Polymer |
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| 摘要: 在水热反应条件下合成了1种新颖的U(Ⅵ)-K异核配位聚合物[UO2K2(pdc)2(H2O)3]n(H2pdc =吡啶-2，6-二羧酸)，通过元素 分析、红外、紫外光谱及热重对该配合物进行了表征。单晶结构表明：配合物属于单斜晶系，C2/c空间群；晶胞参数分别为a=1.888 5(6) nm，b=1.490 0(5) nm，c=0.740 2(2) nm，β=111.104(10)°。中心铀及钾原子通过2个氮原子和6个氧原子与吡啶-2,6-二羧酸配体结合。不同的[UO2K2(pdc)2]·3H2O单元通过氧原子桥联组成三维链状配位聚合物。配位聚合物中存在π…π相互作用及氢键作用。CCDC：727858。 |
| 关键词: 铀 吡啶-2，6-二羧酸 配位聚合物 晶体结构 |
| 基金项目: |
| Abstract: A novel U(Ⅵ)-K heteronuclear coordination polymer UO2K2(pdc)2·3H2O (H2pdc=pyridine-2,6-dicarboxylic acid) has been synthesized hydrothermally and determined by means of IR, UV and X-ray single-crystal diffraction methods. The single-crystal X-ray analysis of the complex reveals that the crystal belongs monoclinic, space group C2/c with a=1.888 5(6) nm, b=1.490 0(5) nm, c=0.740 2(2) nm, β=111.104(10)°. The centered uranium atom and potassium atoms are bonded to two pdc ligands via two nitrogen atoms and six oxygen atoms. Different [UO2K2(pdc)2·3H2O] units are bridged by oxygen atoms to form three-dimensional chain coordination polymer. In addition, there are π…π stacking interactions and hydrogen bonds in the coordination polymer. CCDC: 727858. |
| Keywords: uranium pyridine-2,6-dicarboxylic acid coordination polymer crystal structure |
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| 王 娟,吕 鑫,李子颖,张玉燕,程时远.铀-钾异核配位聚合物的合成及晶体结构(英文)[J].无机化学学报,2011,27(3):580-584. |
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