Synthesis, Crystal Structures, and Thermal Analyses of ­Copper(II) and Manganese(II) Mixed‐Ligand Coordination Polymers Constructed from Benzimidazole‐5, 6‐dicarboxylic Acid and N‐Donor Ligands

Abstract

The coordination polymers, {[Cu(Hbidc)(2,2Јbpy)(H 2 O)]·2H 2 O} n (1) and {[Mn(Hbidc)(2,2Ј-bpy) (H 2 O) 2 ]·2H 2 O} n(2) (H 3 bidc = benzimidazole-5,6-dicarboxylic acid, 2,2Ј-bpy = 2,2Јbipyridine), were synthesized in solution and characterized by elemental analysis, IR spectroscopy, thermogravimetric analysis (TGA), and single-crystal X-ray diffraction. Complexes 1 and 2 consist of different 1D chain structures. In both compounds, 2,2Ј-bpy is chelating in a

Anion-directed assemblies of europium(III) coordination polymers based on 1H-benzimidazole-5,6-dicarboxylate: structures and luminescence properties

“…Another feature of H 3 bidc is the relatively large -conjugated system in the benzimidazole ring which might contribute to desirable fluorescence properties resulting from the interaction between the 1H-benzimidazole-5,6-dicarboxylate (Hbidc 2À ) anion and the metal ion. This ligand has been used extensively by us and other groups in the construction of CPs with both single transition metals and lanthanide ions (Liu et al, 2019;Chai et al, 2018;Zhang et al, 2016a,b;Jin et al, 2016;Wang et al, 2013Wang et al, , 2015Wang et al, , 2016Li et al, 2014;Xiong et al, 2015;Sun et al, 2012Sun et al, , 2013Gao et al, 2013;Xu et al, 2012;Ding et al, 2012;Wei et al, 2009).…”