Synthesis, Spectral, Thermal and Structural Characterization of Two Complexes Containing [N-(2 With Carboxylate

Abstract

Compounds based on the [Zn(hydet-en)<inf>2</inf>].(tpht).(H<inf>2</inf>O) (1) (tpht=dianion of terephthalic acid, hydet-en=N-(2-hydroxyethyl)ethylenediamine) has been synthesized which is characterized by single crystal X-ray determination, IR and thermal analysis. In 1, the Zinc(II) ion is six-coordinated that sandwiched by two hydet-en ligands which lies each hydeten ligand adopts a tripodal conformation and acts as tridentate ligand, carboxylate is uncoordinated. The coordination monomer is connected by C(13) chains and linear chains are connected by O-H···O H-bonds formed by DA:AD type 4 organization of aqua ligands and tpa2- ions resulting in R44(12) synthons to 3D structure. The FT-IR investigation of the complex were performed within the mid-IR region, mainly focusing on the characteristic vibrations of its free state and ligand behaviour in the case of complex formation. Thermal behaviours of 1 were followed using TG, DTA and DTG techniques. © 2018 Author(s).