Synthesis and Crystal Structure of Two One-dimensional Chain Copper Complexes [Cu(TTA)2(4,4′-azpy)] and [Cu(TTA)2(3,3′-azpy)]

Two copper complexes [Cu(TTA)2(4,4′-azpy)] (1) and [Cu-(TTA)2(3,3′-azpy)] (2) (HTTA = 1,1,1-trifluoro-3-(2-thenoyl)-acetone, 4,4′-azpy = 4,4′-azobispyridine, 3,3′-azpy = 3,3′-azobispyridine) were synthesized and characterized. The crystal structures were determined by X-ray diffraction analysis. The crystal 1 belongs to triclinic with space group P1, a = 0.8515(2) nm, b = 0.9259(2) nm, c = 0.9468(2) nm, a = 66.126(9)°, β = 79.667(9)°, γ = 90.13(1)°, Z = 1, V = 0.6692(2) nm3, Dc = 3.425 g/cm3, γ = 2.113 mm−1, F(000) = 694, R1 = 0.0594, wR2 = 0.1499. The crystal 2 belongs to monoclinic with space group P21/c, a = 1.0661(2) nm, b = 1.4296(3) ran, c = 1.0041(3) nm, β = 114.50(3)°, V = 1.3926(5) nm3, Z = 2, Dc = 1.646 g/ cm3, μ = 1.015 mm−1, F(000) = 694, R1, = 0.0535, wR2 = 0.1113. In the crystals of complexes 1 and 2, the copper atoms have distorted octahedral symmetry. The two compounds possess very similar one-dimensional linear chains linked through the rodlike 4,4′-azpy ligands or 3,3′-azpy ligands.