Publication Date:
2015-10-07
Description:
Two coordination polymers, namely [Cd(HL) 2 ] n · n H 2 O ( 1 ) and [Zn(L)] n ( 2 ) (H 2 L = benzimidazole-2-butanoic acid), were prepared by solvothermal reaction of Cd(NO 3 ) 2 or Zn(NO 3 ) 2 and H 2 L. The structures of these two compounds were determined by the single-crystal X-ray diffraction analyses and further characterized by IR spectroscopy, elemental analyses, powder X-ray diffraction analyses, and thermal analyses. Compound 1 is a two-dimensional (2D) layer framework, which is further packed into a 3D supramolecular framework by intermolecular hydrogen bonds, whereas compound 2 is a three-dimensional (3D) framework with 3-connected etb topology. The H 2 L ligand in compounds 1 and 2 displays two different anionic forms (HL – and L 2– ), which then adopt two different coordination modes. Moreover, thermal stabilities and luminescent properties of these two compounds were also investigated.
Print ISSN:
0044-2313
Electronic ISSN:
1521-3749
Topics:
Chemistry and Pharmacology
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