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) A3, Z = 4, Dc= 1,607 g/cm^3, F(O00) = 1128,μ(MoKα) = 1.918 mm^-1, the final R = 0.0506 and wR = 0.1382. Each Cu(n) 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 P211n with a = 5.9765(3), b = 15.7196(9), c = 12.0514(6)A,β= 101.618(3)^o, V = 1109.0(1)A^3, C24H18CuN4O6, Mr = 521.96, Z = 2, Dc = 1.563 g/cm^3, 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)A 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) ?