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

ABSTRACT

A 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.

KEYWORDS:

• Thymine
• ethylenediamine
• spectroscopic analysis
• crystal copper(II) complex