Abstract
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 complex 1 is a one-dimensional tube-like coordination polymer containing one helical [Co-L] and two linear [Co-glu] chains. In complex 2, two npht ligands connect two Co(II) atoms to form a binuclear [Co(npht)]2 subunit, 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.
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Acknowledgments
This work was supported by the NCET-09-0853, the National Natural Science Foundation of China (No. 21171025 and 21201021), the Natural Science Foundation of Liaoning Province (No. 201102003) and Program of Innovative Research Team in University of Liaoning Province (LT2012020).
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Liu, GC., Huang, JJ., Zhang, JW. et al. Effect of organic bicarboxylates on the structures of cobalt(II) coordination polymers derived from a semi-rigid bis(benzimidazole) derivative. Transition Met Chem 38, 359–365 (2013). https://doi.org/10.1007/s11243-013-9692-x
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DOI: https://doi.org/10.1007/s11243-013-9692-x