Preparation, spectra and thermal properties of two novel cyano-bridged complexes: crystal structure of one-dimensional copper(II)/palladium(II)

Two new coordination polymers,{–M(hydeten) 2 –NC–Pd(CH) 2 –CN} n , [M = Ni and Cu, hydeten; N-(2-hydroxyethyl)-ethylenediamine)], have been synthesized and their elemental, thermal and spectroscopic (IR and UV-vis) properties have been studied. The crystal structure analysis of the Cu–Pd complex has indicated a polymeric chain –Cu(hydeten) 2 –NC–Pd(CN) 2 – Cu(hydeten) 2 – in which the Pd(II) ions are four-coordinated by carbon atoms from four cyano groups in a square-planar arrangement, whereas Cu(II) ions are six-coordinated with two cis cyano N and four N atoms of bidentate hydeten ligands in a distorted octahedral arrangement.