Ultrasonic assisted synthesis of two new coordination polymers and their applications as precursors for preparation of nano-materials

Two new isostructural coordination polymers, [Zn-3(Oba)(4)][Me2NH2)(2)]center dot 6DMF center dot 3H(2)O (1) and [Cd-3(Oba)(4)][Me2NH2)(2)]center dot 2DMF center dot 2H(2)O (2), were synthesized using the nonlinear dicarboxylate ligand, 4,4'-oxybis(benzoic acid) (H(2)oba) and characterized by IR spectroscopy and single-crystal X-ray crystallography. Single-crystal X-ray data show that 1 and 2 are two-dimensional coordination polymers that can be extended to three-dimensional supramolecular networks by CH...O interactions. These two new coordination polymers were also sonochemically synthesized while sonication time and power of irradiation influencing size and morphology of nano-structured compounds were also studied. Moreover, calcination of these coordination polymers creates ZnO and CdO nanostructures. (C) 2016 Elsevier B.V. All rights reserved.