The title complex Cu2(μ-PhCOO)2(μ-CH3COO)2(CH3OH)2 1 (C20H24Cu2O10, Mr = 551.47) has been synthesized by the reaction of Cu(OAc)2·H2O with benzoic acid, and its crystal structure was determined by X-ray diffraction method. Complex 1 belongs to orthorhombic, space group Pbca with a = 13.083(6), b = 8.078(4), c = 21.566(2) A, V = 2279(2) ·3, Z = 4, Dc = 1.607 g/cm3, F(000) = 1128, μ(MoKα) = 1.918 mm–1, the final R = 0.0506 and wR = 0.1382. Each Cu(II) ion is coordinated by five oxygen atoms from two benzoic acids, two acetic acids and one methanol molecule in a slightly distorted square pyramidal environment. The title molecules construct a 2-D layer via the hydrogen bonds O–H…O. Solid-state photoluminescent investigation reveals that complex 1 displays strong emissions. IR and TG-DTA studies are also presented.
The copper complex Cu(C12H9N2O3)2 has been synthesized by the reaction of furaldehyde salicylylhydrazone (Hfs) and copper acetylacetonate and characterized by X-ray crystal diffraction and spectroscopic studies. The crystal crystallizes in space group P21/n with a = 5.9765(3), b = 15.7196(9), c = 12.0514(6) , β = 101.618(3)°, V = 1109.0(1) 3, C24H18CuN4O6, Mr = 521.96, Z = 2, Dc = 1.563 g/cm3, μ = 1.035 mm-1, F(000) = 534, R = 0.0373 and wR = 0.1058 for 2283 observed reflections (I > 2σ(I)). The copper atom has a square-planar CuN2O2 coordination and should be in an octahedral coordination if considering Cu–O (phenol) with distances of 2.796(2) as weak bonds. The neighboring copper complex molecules are linked together by these weak Cu–O (phenol) bonds, resulting in an extended 1D chain. The title compound exhibits paramagnetic property and fluorescence behavior at room temperature supported by the EPR and fluorescence spectra.
The title compound 1,4,23,26,29,48-hexaaza-6,9:16,19:31,34:41,44-tetrabenzo-12, 15,37,40-tetraoxa-cyclodotetracontane-4,5,18,19,25,26,39,40-octaene 1 (C40H46N6O4) was synthe- sized by [2+2] condensation of diethylenetriamine with 4,4?diformyl-diphenoxyethane (dialdehyde) in a mixed solvent of ethanol and tetrahydrofuran. The crystal data are: Mr = 674.83, triclinic, P, a = 5.8249(1), b = 9.4114(8), c = 17.649(2) ? a = 79.310(7), b = 85.397(4), g = 78.970(8), V = 932.1(1) ?, Z = 1, Dc = 1.202 g/cm3, F(000) = 360, m(MoKa) = 0.079 mm-1, R = 0.0486 and wR = 0.1439. The title molecule has a crystallographic center symmetry. The distance between the two secondary amine nitrogen atoms is 18.890(3) ?
