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