Organic carboxylate ligand directed the structural variation in two Zn(II) coordination polymers

Two new Zn(II) coordination compounds, namely (Zn-2(mbdc)(2)(bix)(2)ln (1) and Zn-4(bptc)(2)(bix)(4)ln (2) (H(2)mbdc = isophthalic acid, H(4)bptc = biphenyl-3,3',5,5'-tetracarboxylic acid, bix = bis(imidazol-1-ylmethyl)benzene) were successfully obtained using the dual-ligand synthetic strategy. Single crystal X-ray diffraction analyses revealed that compound 1 features a 2-fold interpenetrated 3D dia-type framework, and compound 2 features a trinodal 4-connected 3D topological network. The structural variation was achieved via tuning the organic carboxylate ligand. Moreover, the luminescent properties of compounds 1 and 2 were also investigated in the solid state at room temperature. (C) 2018 Elsevier B.V. All rights reserved.