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One novel copper(Ⅱ) complex, [Cu(NAA)2(bim)2]·H2O (1, HNAA = a-naphthylacetic acid, bim = benzimidazole) has been synthesized and characterized by X-ray single-crystal diffraction analysis, elemental analysis, and IR spectrum. It crystallizes in monoclinic, space group C2/c with a = 1.15969(12), b = 1.9757(2), c = 1.45763(16) nm, β = 104.712(2)°, V = 3.2298(6) nm3, Z = 4, C38H32N4O5Cu, Mr = 688.22, Dc = 1.418 g/cm-3, μ = 0.729 mm-1, S = 1.039, F(000) = 1428, the final R = 0.0380 and wR = 0.0912 for 2849 unique reflections. In 1, two carboxylate and two benzimidazole ligands coordinate to the central Cu(Ⅱ) atom by a bidentate chelate mode. Interesting, reversible thermochromic properties of 1 can be observed and investigated by thermal analysis method.
One novel copper (Ⅱ) complex, [Cu (NAA) 2 (bim) 2] · H2O (1, HNAA = a-naphthylacetic acid, bim = benzimidazole) has been synthesized and characterized by X-ray single- It crystallizes in monoclinic space group C2 / c with a = 1.15969 (12), b = 1.9757 (2), c = 1.45763 (16) nm, β = 104.712 (2) °, V = 3.2298 (6) nm3, Z = 4, C38H32N4O5Cu, Mr = 688.22, Dc = 1.418 g / cm-3, μ = 0.729 mm-1, S = 1.039, F (000) = 1428, the final R = 0.0380 and wR = 0.0912 for 2849 unique reflections. In 1, two carboxylate and two benzimidazole ligands coordinate to the central Cu (II) atom by a bidentate chelate mode. Interesting, reversible thermochromic properties of 1 can be observed and investigated by thermal analysis method.