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

Demir S., Eren B., HOLYNSKA M.

JOURNAL OF MOLECULAR STRUCTURE, vol.1081, pp.304-310, 2015 (SCI-Expanded) identifier 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: Crystal structure, Copper, Benzimidazole, Thermal analysis, Fluorescence, Jahn-Teller effect, CRYSTAL-STRUCTURES, METAL-IONS, BENZIMIDAZOLE, HALIDES
  • Recep Tayyip Erdoğan University Affiliated: Yes

Abstract

(1-Methyl-2-(thiophen-2-yl)-1H-benzo[d]imidazole) (C12H10N2S) (L) ligand and its three copper complexes [(Cu-2(L)(2)I-2] (1), [(Cu(L)(2)X-2] (X = Cl- (2), and NO3- (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 center dot center dot center dot X hydrogen bonds (X = I for the complex 1, X = Cl for the complex 2 and X = 0 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. (C) 2014 Elsevier B.V. All rights reserved.