(1-Methyl-2-(thiophen-2-yl)-1H-benzo[d]imidazole) and its three copper complexes: Synthesis, characterization and fluorescence properties

Demir S., EREN B., Hołyńska M.

Journal of Molecular Structure, vol.1081, pp.304-310, 2015 (SCI-Expanded) identifier

  • Publication Type: Article / Article
  • Volume: 1081
  • Publication Date: 2015
  • Doi Number: 10.1016/j.molstruc.2014.10.043
  • Journal Name: Journal of Molecular Structure
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.304-310
  • Keywords: Benzimidazole, Copper, Crystal structure, Fluorescence, Jahn-Teller effect, Thermal analysis
  • Bilecik Şeyh Edebali University Affiliated: Yes

Abstract

© 2014 Elsevier B.V. All rights reserved. (Chemical Equation Presented) (1-Methyl-2-(thiophen-2-yl)-1H-benzo[d]imidazole) (C 12 H 10 N 2 S) (L) ligand and its three copper complexes [(Cu 2 (L) 2 I 2 ] (1), [(Cu(L) 2 X 2 ] (X = Cl - (2), and NO 3 - (3)) were synthesized and characterized by elemental analysis and IR measurements. The structures of the complexes 1-3 were determined by single crystal X-ray diffraction. The complex molecules interact with each other's via weak C-H⋯X hydrogen bonds (X = I for the complex 1, X = Cl for the complex 2 and X = O for the complex 3). Upon excitation with a wavelength of 350 nm at room temperature, free L and complex 1 emit fluorescence at 420 and 560 nm, respectively.