Synthesis, spectroscopic, and X-ray structural study of aqua-bis(thymine-N1,N4)-ethylenediamine copper(II)dihydrate [Cu(Thy)2(en)(H2O)].2H2O

Abstract

ABSTRACTA new compound of thyminato anions and ethylenediamine with five-coordinate Cu(II) is synthesized. Elemental analysis and spectroscopic techniques (IR, UV-visible) were used to characterize this compound and its crystal structure was determined by single-crystal X-ray diffraction. The crystal structure consists of the neutral mononuclear complex [Cu(Thy)2(en)(H2O)].2H2O. The environment around Cu(II) ion exhibits a square pyramidal geometry with two nitrogen atoms of ethylenediamine and two other nitrogen atoms of the monodentate monoanions of thymine building the equatorial plane. The oxygen atom from H2O molecule occupies the apical position. The complex displays a hydrogen-bonded network. The IR and UV-visible spectra were used to correlate the description of complex.