摘要
Supermolecular compounds of glycine monosubstituted heteropolytungstates isomer with Keggin structure βi-K6-n(HGly)n SiW11M(H2O)O39 ·xH2O (M=Co2+, Ni2+; βi=β2, β3) were synthesized and characterized by means of elementary analysis, IR, UV, TG-DTA, X-ray diffraction, polarography and CV. The results indicate that glycin combines the electrostatic effect with heteropolytungstates isomer. The heteropoly anion still remains its Keggin structure in supermolecular compounds. The electrochemical behavior of the compound in 1 mol·L-1 HAc-NaAc shows that two redox waves correspond to two two-electron processes attributing to the reduction of SiW11Co(H2O)O39 6-. Steady-state fluorescence spectrum shows two intenser fluorescence emission peaks in 447 nm and 486 nm appeared after the supermolecular compound being excited by the excitation wavelength in 274 nm.
Supermolecular compounds of glycine monosubstituted heteropolytungstates isomer with Keggin structure βi-K（6-n）（HGly）n[SiW11 M（H2O）O39]·xH2O （M=Co^2＋, Ni^2＋; βi=β2, β3） were synthesized and characterized by means of elementary analysis, IR, UV, TG-DTA, X-ray diffraction, polarography and CV. The results indicate that glycin combines the electrostatic effect with heteropolytungstates isomer. The heteropoly anion still remains its Keggin structure in supermolecular compounds. The electrochemical behavior of the compound in 1 mol·L^-1 HAc- NaAc shows that two redox waves correspond to two two-electron processes attributing to the reduction of [SiW11Co（H2O）O39]^6-. Steady-state fluorescence spectrum shows two intenser fluorescence emission peaks in 447 nm and 486 nm appeared after the supermolecular compound being excited by the excitation wavelength in 274 nm.
出处
《无机化学学报》
SCIE
CAS
CSCD
北大核心
2006年第6期1137-1142,共6页
Chinese Journal of Inorganic Chemistry
基金
黑龙江省教育厅基金资助(No.10541249)
黑龙江省骨干教师基金资助(No.1053G011)项目。
关键词
杂多钨酸盐
甘氨酸
超分子
heteropolytungstates
glycine
supermolecule
