Effect of organic bicarboxylates on the structures of cobalt(II) coordination polymers derived from a semi-rigid bis(benzimidazole) derivative
Effect of organic bicarboxylates on the structures of cobalt(II) coordination polymers derived from a semi-rigid bis(benzimidazole) derivative
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DOI：
10.1007/s11243-013-9692-x
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发表时间：
2013-03
影响因子：
1.7
通讯作者：
Guocheng Liu;Jing-Jing Huang-Jing;Ju-wen Zhang;X. Wang;Hong-yan Lin
中科院分区：
文献类型：
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作者：
Guocheng Liu;Jing-Jing Huang-Jing;Ju-wen Zhang;X. Wang;Hong-yan Lin
采用半刚性双（苯并咪唑）衍生物和不同有机二元酸自组装的方法，用水热法合成了两种新的Co（II）配位聚合物[Co(L)(glu)](1)和[Co(L)(npht)]·H2O (2) （H2glu =戊二酸，H2npht = 3-硝基邻苯二甲酸，L = 1,4-二（5,6-二甲基苯并咪唑-1-基甲基）苯）。单晶x射线衍射分析表明，配合物1是一种一维管状配位聚合物，含有一条螺旋链[Co-L]和两条线性链[Co-glu]。在络合物2中，两个npht配体连接两个Co（II）原子形成双核[Co(npht)]2亚基，该亚基进一步由两种构象的L配体连接，形成三维cdso4样框架。此外，本文还研究了标题配合物在本体改性碳糊电极中的电化学行为，以及它们的热稳定性和荧光性能。
Two new Co(II) coordination polymers, [Co(L)(glu)] (1) and [Co(L)(npht)]·H2O (2) (H2glu = glutaric acid, H2npht = 3-nitrophthalic acid, L = 1,4-bis(5,6-dimethylbenzimidazol-1-ylmethyl)benzene), have been hydrothermally synthesized by self-assembly of cobalt chloride with a semi-rigid bis(benzimidazole) derivative and different organic bicarboxylic acids. Single crystal X-ray diffraction analysis reveals that complex1is a one-dimensional tube-like coordination polymer containing one helical [Co-L] and two linear [Co-glu] chains. In complex2, two npht ligands connect two Co(II) atoms to form a binuclear [Co(npht)]2subunit, which is further linked by L ligands with two kinds of conformations to form a 3-D CdSO4-like framework. In addition, the electrochemical behaviors of the title complexes in bulk-modified carbon paste electrodes, and their thermal stabilities and fluorescent properties were investigated in this paper.