Synthesis and Crystal Structure of Two One-dimensional Chain Copper Complexes [Cu(TTA)_2[4,4'-azpy)] and [Cu(TTA)_2(3,3'-azpy)]

摘要

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-bar, a = 0.8515(2) nm, b = 0.9259(2) nm, c = 0.9468(2) nm, α = 66.126(9)°, β = 79.667(9)°, γ = 90.13(1)°, Z = 1, V = 0.6692(2) nm~3, D-c = 3.425 g/cm~3, μ = 1.015 nm~(-1), F(000) = 694, R_1 = 0.535, wR_2 = 0.113. 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.