LAUSR

Abstract Three Copper(II) supramolecular coordination compounds (SCCs) named as {[Cu2(µ-dmglu)2(µ-H2O)(dmen)2]·H2O}n (1), [Cu2(µ-dmglu)2(deten)2]·2H2O (2) and [Cu(µ-dmglu)(dmpen)]2 (3), have been synthesized using 2,2-dimethylglutaric acid (H2dmglu) and three different bidentate diamine ligands (dmen= N,N-dimethylethylenediamine, deten= N,N-diethylethylenediamine and dmpen= N,N'-dimethyl-1,3-propanediamine). The structures of SCCs were determined by single-crystal X-ray diffraction, FT-IR spectra, elemental, thermal analysis, powder X-ray diffraction (PXRD) and scanning electron microscopy (SEM). According to X-ray analysis, 1-3 crystallizes in the triclinic space group P-1. Although 2 and 3 have dinuclear structures, 1 displays 1D linear chain. In complex 1, adjacent 1D chains are extended to 3D supramolecular structure by hydrogen bonds. In complexes, 2 and 3, dinuclear units are broadened to 2D and 3D supramolecular structures with hydrogen bonding interactions. Moreover, the optical band gap energy of 1-3 have been measured with solid-state compounds. The results exhibited that the band gap energy varied from 3.45 eV to 3.39 eV. These compounds could be used like a semiconductor material.