Synthesis, structure and molecular Hirshfeld surface analysis of polymeric cadmium(II) complex involving tetradentate N3S-donor ligand and dicyanamide as bridging ligand

Abstract

One new polymeric cadmium(II) complex {[Cd(bdmpe)(µ_1,5-dca)]ClO₄.CH₃OH}_n has been synthesized by the reaction of cadmium perchlorate with ligand N,N-bis((3,5-dimethyl-1H-pyrazol-1-yl)methyl)-2- phenylthio)ethan-1-amine (bdmpe) in presence of dca (dicyanamide, N(CN)₂^-) as bridging ligand in methanol and characterized by spectroscopic techniques. Single crystal X-ray diffraction study of the complex confirmed that it has polymeric 1D chain and each cadmium centre has distorted octahedral geometry with N₅S coordination and is bonded through two terminal nitrile group of the dca ligand using m_1,5 coordination modes. Intermolecular interactions and packing modes of the compound are described by Hirshfeld surface analysis and two dimensional finger print plots.