New Method for Distinguishing GeometricaLIsomers of Tri-substituted Keggin-type Heteropolyanions α-and β-[SiW9M3(H2O)3O39]7-(M=Al3+, Ga3+)

Abstract

Abstract: The tri-substituted heteropolyanions with Keggin structure, α-and β-, are two important geometricaLIsomers. They have promising utilizations in catalysis, high protonic conductors and anti-vitus. The phase transformation method has been used to investigate the different microcosmic crystals, when tri-substituted Keggin-type heteropolyanions are dissolved in the organic solvent of benzene. The different microcosmic crystals are taken as the new method to distinguish geometricaLIsomers of tri-substituted Keggin-type heteropolyanions. This work has filled up the gaps of microcosmic crystals in doing research work containing heteropolyanions in organic solvent.

Key words: Distinguishing geometricaLIsomers, tri-Substituted heteropolyanion, Keggin structure

CLC Number:

O635.2

TrendMD:

HUANG Ru-Dan, QIAO Zheng-Ping, LI Bai-Tao, FEI Bao-Li, WANG En-Bo . New Method for Distinguishing GeometricaLIsomers of Tri-substituted Keggin-type Heteropolyanions α-and β-[SiW₉M₃(H₂O)₃O₃₉]^7-(M=Al³⁺, Ga³⁺)[J]. Chem. J. Chinese Universities, 1999, 20(3): 353.

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New Method for Distinguishing GeometricaLIsomers of Tri-substituted Keggin-type Heteropolyanions α-and β-[SiW₉M₃(H₂O)₃O₃₉]^7-(M=Al³⁺, Ga³⁺)

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