Synthesis, spectroscopic and thermal studies of the copper(II) aspartame chloride complex

Çakır Ş., Coşkun E., Naumov P., Biçer E., Bulut I., İçbudak H., ...Daha Fazla

Journal of Molecular Structure, cilt.608, sa.1, ss.101-107, 2002 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 608 Sayı: 1
  • Basım Tarihi: 2002
  • Doi Numarası: 10.1016/s0022-2860(01)00939-5
  • Dergi Adı: Journal of Molecular Structure
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.101-107
  • Anahtar Kelimeler: Aspartame, Copper, ESR, FT IR, Thermal analysis, UV/vis
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

Aspartame adduct of copper(II) chloride Cu(AsP)2Cl2·2H2O (Asp = aspartame) is synthesized and characterized by elemental analysis, FT IR, UV/vis, ESR spectroscopies, TG, DTG, DTA measurements and molecular mechanics calculations. Aqueous solution of the green solid absorbs strongly at 774 and 367 nm. According to the FT IR spectra, the aspartame moiety coordinates to the copper(II) ion via its carboxylate ends, whereas the ammonium terminal groups give rise to hydrogen bonding network with the water, the chloride ions or neighboring carboxylate groups. The results suggest tetragonally distorted octahedral environment of the copper ions. © 2002 Elsevier Science B.V. All rights reserved.