Spectrothermal properties and crystal structure of a polynuclear mu-squarato(O-1, O-3)bis(monoethanolamine)copper(II) complex, [Cu(mu-sq)(mea)(2)](n)


YEŞİLEL O. Z.

JOURNAL OF COORDINATION CHEMISTRY, vol.59, no.15, pp.1675-1684, 2006 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 59 Issue: 15
  • Publication Date: 2006
  • Doi Number: 10.1080/00958970600580084
  • Journal Name: JOURNAL OF COORDINATION CHEMISTRY
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1675-1684
  • Eskisehir Osmangazi University Affiliated: Yes

Abstract

Catena-poly-trans-mu-(squarato-O-1,O-3)bis(monoethanolamine) copper(II), [Cu(mu-C4O4) (C2H7NO)(2)](n) has been prepared and characterized by elemental analysis, IR, UV-Vis, EPR, thermal analysis and single crystal X-ray diffraction. The compound crystallizes in the triclinic system, space group P-1, with a = 5.1435( 7), b = 7.2931( 10), c = 7.5198(11) angstrom, alpha = 105.940(11) degrees, beta = 98.731(11) degrees, gamma = 101.981(11)degrees and Z = 1. The structure contains chains of squarato-O-1, O-3-bridged polynuclear copper( II) units. The configuration around each copper is distorted octahedral with two nitrogen and two oxygen atoms of two bidentate neutral monoethanolamine (N, O) ligands and two oxygen atoms of two squarato (mu-O-1, O-3) ligands. These chains are held together by an extensive three-dimensional network of N-H center dot center dot center dot O type intermolecular hydrogen bonds and van der Waals forces. The IR, UV-Vis and EPR spectra, magnetic study and thermal analysis of the complex are described.