Synthesis, spectral and thermal properties, and crystal structure of bis(ethylenediamine)(aqua)copper(II) (bis)syringate ethylenediamine dihydrate [Cu(en)(2)(H2O)](sy)(2)(en)(H2O)(2)

Heren Z., Pasaoglu H., Kastas G., Vurucu L., Buyukgungor O.

ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES, vol.61, no.3, pp.287-291, 2006 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 61 Issue: 3
  • Publication Date: 2006
  • Journal Name: ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.287-291
  • Keywords: syringic acid, ethylenediamine, copper (II) complex, thermal properties, COPPER(II) COMPLEXES, BONDING PROPERTIES
  • Ondokuz Mayıs University Affiliated: No

Abstract

The complex [Cu(en)(2)(H2O)](sy)(2)(en)(H(2)O())2 has been synthesized and characterized by its electronic and vibrational spectra. The molecular structure of the complex has been determined by X-ray diffraction methods. The complex crystallizes in the orthorhombic space group Pnma with unit-cell parameters a = 10.7236(5), b = 20.4660(10), c = 14.4523 (11) angstrom and Z = 4. In the cation, the Cu(II) ion has a distorted square pyramidal coordination with two bidendate (en) ligands forming the basal plane and a H2O molecule in the apical position. The complex cations and syringate anions constitute chains along the b axis in -A-B-A- fashion. The members of the chains are linked by through N-H center dot center dot center dot O hydrogen bonds. The (en) molecules are responsible for connecting adjacent layers.