Cu2O particles with different morphologies and scales were prepared sonochemically on the solid-liquid interface of CuCl and water, by adjusting the reaction factors. The products were characterized by powder X-ray diffraction（XRD） and scanning electron microscopy（SEM）. The formation and morphology of Cu2O crystals were influenced by high-intensity ultrasound, reaction temperature, and addition of CuCl. The results indicate that micrometer Cu2O was crystallized in cubic and octahedral shapes, whereas, nanometer Cu2O was not produced in well-shaped crystals.
WANG LingZHANG Xiao-xiaYUAN Hong-mingCHEN YanDONG Zhong-pingPANG Guang-shengFENG Shou-hua
Hydrothermal reaction between mixed ligand（1,2,4-triazole and benzoic acid） and Zn（NO3）2·6H2O afforded a three-dimensional（3D） metal-organic framework Zn3（C2H2N3）2（C7H5O2）4（C2H2N3=1,2,4-triazole, C7H5O2=benzoic acid）. The compound was crystallized in the hexagonal system with space group R3： a=2.90234（9） nm, b=2.90234（9） nm, c=1.08597（5） nm, γ=120°, V=7.9222（5） nm^3, Mr=816.68, Dc=1.541 g/cm^3, Z=9, F（000）=3708, R=0.0636, and wR=0. 1777. Its structure consists of ZnN2O2 tetrahedron and ZnN204 octahedron, which are connected by 1,2,4-triazole and benzoic acid ligands to form a 3D framework with helical units. This compound forms an interpenetrated NbO topology. The compound was characterized by single-crystal X-ray diffraction, elemental analysis, FTIR spectra, and TGA measurements.
SONG Zhe LI Guang-hua YU Yang SHI Zhan FENG Shou-hua
