Synthesis and Single Crystal Structure Characterization of Dinuclear and Polymeric Mixed‐ligand Coordination Compounds of Zinc(II) and Cadmium(II) with the Bridging Ligand 1,2‐Bis(pyridin‐4‐ylmethylene)hydrazine

Abstract

Three d10‐transition‐metal coordination compounds [Cd(tfpb)2(4‐bpmh)]n (1), [Cd(9‐aca)(NO3)(OHCH3)(4‐bpmh)]n (2) and [Zn2(dpp)4(4‐bpmh)] (3) with the bridging ligand 4‐bpmh were synthesized [4‐bpmh = 1,2‐bis(pyridin‐4‐ylmethylene)hydrazine, tfpb = 4,4,4‐trifluoro‐1‐phenylbutane‐1,3‐dionate, 9‐aca = anthracene‐9‐carboxylate, dpp = 1,3‐diphenylpropane‐1,3‐dionate]. Compounds 1–3 were characterized by FT‐IR spectroscopy, elemental analysis, and structurally authenticated by X‐ray crystallography. Compounds 1–3 are constructed by an O,O'‐donor ligand including chelating β‐diketonates (tfpb, dpp) in 1 and 3 and a carboxylate ligand (9‐aca) in 2 in combination with a linear neutral bidentate and bridging N‐ligand (4‐bpmh). The assembly and action of the bridging 4‐bpmh ligand leads to one‐dimensional coordination polymers in 1, 2 and to a dinuclear coordination complex in 3. The structures and the solid‐state supramolecular interactions for studying the crystal packing fashions of 1–3 were analyzed. The supramolecular interactions including hydrogen bonding, C–H···π, π···π, and C–F···π in 1, 2, and 3 were founded.