【摘 要】
：
The peroxotitanium-substituted heteropolytungstate (-K7GaW11(TiO2)O39(11H2O has been synthesized and characterized by elemental analysis, IR, UV, 183W NMR and e
【出 处】
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Chinese Chemical Letters
论文部分内容阅读
The peroxotitanium-substituted heteropolytungstate (-K7GaW11(TiO2)O39(11H2O has been synthesized and characterized by elemental analysis, IR, UV, 183W NMR and electrochemistry. 183W NMR spectrum consists of six lines with intensity ratio 2:2:1:2:2:2, indicated that the TiO2 occupied the empty octahedral site of the GaW11 anion forming a polyanion with Cs symmetry. The characteristic charge-transfer absorption band O22-?Ti at 385 nm occurs in the UV spectrum. The polarographic reduction potential of O22- at ca.+0.87 V has been found.
The peroxotitanium-substituted heteropolytungstate (-K7GaW11 (TiO2) O39 (11H2O has been synthesized and characterized by elemental analysis, IR, UV, 183 W NMR and electrochemistry. 183 W NMR spectrum consists of six lines with intensity ratio 2: 2: 1: 2: 2, indicated that the TiO2 occupied the empty octahedral site of the GaW11 anion forming a polyanion with Cs symmetry. The characteristic charge-transfer absorption band O22-? Ti at 385 nm occurs in the UV spectrum. The polarographic reduction potential of O22 - at ca. + 0.87 V has been found.
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