Crystal structure of a new zigzag chain Cu(II) complex with terephthalato and 1,10-phenanthroline ligands, [Cu(C_8H_4O_4)(C_(12)H_8N_2)(H_2O)]_n

摘要

X-Ray crystal structure analysis of the complex [Cu(tpth)(phen)(H_2O)]_n, where tpht is the dianion of terephthalic acid and phen is 1, 10-phenanthroline, showed that two crystallographically different, but chemically identical tpht ions with monodentately coordinated COO groups exist; both tpht ions act as bridging ligands forming zigzag chains. The CU(II) ions are in a deformed trigonal bipyra-midal environment consisting of two N atoms from phen, two O atoms from different tpht ligands and one O atom from coordinated H_2O molecule. The crystal data are as follows: C_(20)H_(14)CuN_2O_5, M_r = 425.87, triclinic system, space group P 1, a = 9.007(5), b = 10.557(5), c = 11.554(5) A, α = 114.343(5), β = 92.942(5), γ = 114.51.516(5)°, V =877.3(7) A~3, Z = 2, F(000) = 434, ρ_x = 1,612 g cm~(-3), μ = 1.281 mm~(-1), R_1 = 0.0280 for 4363 reflections with I > 2σ(I), wR_2 = 0.0785 for 5104 independent reflections and 254 refined parameters. Some of data were compared with isostructural Co(II) and Zn(II) complexes having the same ligands.