＜正＞The tetrazole and carboxyl functional groups have received intense attention for decades respectively for t...
Qin-Xiang Jia En-Qing Gao~* Department of Chemistry,East China Normal University,Shanghai Key Laboratory of Green Chemistry and Chemical Processes,Shanghai 200062
Self-assembly between Pt(phen)(edt) (phen=phenanthroline, edt=1,2-ethanedithiolate) and Cu(PPh3)2(MeCN)2(ClO4) (PPh3=triphenylphosphine) gave rise to formation of heterohexanuclear complex Pt4Cu2(edt)4(PPh3)6(ClO4)2(4H2O) (1). The complex was characterized by elemental analyses, ES-MS, UV-Vis, IR, 31P NMR spectroscopy and X-ray crystallography. The molecule consists of two Pt2Cu(edt)2(PPh3)3 units which has a centrosymmmetric inversion to give a cyclic heterohexanuclear skeleton. The PtⅡ and CuⅠ center adopt square-planar and trigonal coordination modes, respectively. The compound shows intense emission at 632 nm in the solid state and at 678 nm in frozen dichloromethane glass at 77 K.
Cuprous oxide(Cu2O) hexapodal branch structure with high uniformity was prepared by a solution phase route using sodium dodecyl sulfate as a capping agent.The shapes of Cu2O crystal(flower-like structure,nanocube and nanoplate) were tuned by varying species and concentrations of surfactants to control the growth rate on different crystal planes of Cu2O.Cu2O nanostructures were characterized by UV-Vis spectroscopy,XRD,TEM and SEM.XRD result shows that the obtained Cu2O belongs to cubic phase.TEM and SEM results demonstrate that specie and concentration of surfactants play a key role in the formation of various morphologies of Cu2O.The formation mechanism is discussed.Moreover,the optical properties of the obtained Cu2O are shape-dependent.
