引用本文:
Xiao Peng ZHAN, Lu MENG. Synthesis and 183W NMR Characterization of α-K7GaW11 (TiO2)O39·11H2O Heteropolyanion[J]. Chinese Chemical Letters,
2001, 12(8): 731-732.
Citation: Xiao Peng ZHAN, Lu MENG. Synthesis and 183W NMR Characterization of α-K7GaW11 (TiO2)O39·11H2O Heteropolyanion[J]. Chinese Chemical Letters, 2001, 12(8): 731-732.
Citation: Xiao Peng ZHAN, Lu MENG. Synthesis and 183W NMR Characterization of α-K7GaW11 (TiO2)O39·11H2O Heteropolyanion[J]. Chinese Chemical Letters, 2001, 12(8): 731-732.
Synthesis and 183W NMR Characterization of α-K7GaW11 (TiO2)O39·11H2O Heteropolyanion
摘要:
The peroxotitanium-substituted heteropolytungstate α-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.
English
Synthesis and 183W NMR Characterization of α-K7GaW11 (TiO2)O39·11H2O Heteropolyanion
Abstract:
The peroxotitanium-substituted heteropolytungstate α-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.
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Key words:
- Peroxotitanium gallatotungstate
- / Keggin structure
- / 183W NMR.
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