Abstract
Two coordination polymers, {[Zn(bbi)(pydca)]·2H2O}n (1) and [Zn(bmb)(1,3-bdc)]n (2), where (bbi = 1,1′-(1,4-butanediyl)bis(2-methylbenzimidazole), H2pydca = pyridine-2,6-dicarboxylic acid, bmb = 1,3-bis(2-methylbenzimidazol-1-ylmethyl)benzene and 1,3-H2bdc = 1,3-benzenedicarboxylic acid), have been hydrothermally synthesized and characterized by elemental analysis, IR spectroscopy, and powder and single-crystal X-ray diffraction. Structural analysis showed that 1 is a 1-D zigzag chain coordination polymer, which is further linked into a 3-D supramolecular framework via classical O–H⋯O hydrogen bonding interactions. In 2, the 1-D loop-like chains are additionally assembled by four C–H⋯π hydrogen bond interactions to construct a 3-D supramolecular network. The thermal stabilities and fluorescence properties of the complexes were investigated.
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