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)(H 2O)2

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HEREN Z., Paşaoǧlu H., Kaştaş G., Vurucu L., Büyükgüngör O.

Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences, vol.61, no.3, pp.287-291, 2006 (SCI-Expanded)

• Publication Type: Article / Article
• Volume: 61 Issue: 3
• Publication Date: 2006
• Doi Number: 10.1515/znb-2006-0308
• Journal Name: Zeitschrift fur Naturforschung - Section B Journal of Chemical Sciences
• Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
• Page Numbers: pp.287-291
• Keywords: Copper (II) Complex, Ethylenediamine, Syringic Acid, Thermal Properties
• Ondokuz Mayıs University Affiliated: Yes

Abstract

The complex [Cu(en)2(H2O)](sy)2(en)(H 2O)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) Å 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⋯O hydrogen bonds. The (en) molecules are responsible for connecting adjacent layers. © 2006 Verlag der Zeitschrift für Naturforschung.