Synthesis and Crystal Structure of the Phenylsilyl Derivative of α-A-PW9O349- (TBA)3[α-A-PW9O34(PhSiO)3(PhSi)]·2H2O

Abstract

Abstract: Reaction of the trivacant heteropolyanions β-A-PW₉O₃₄^9- with PhSiCl₃ leads to the formation of the organosilyl derivative (TBA)₃[α-A-PW₉O₃₄(PhSiO)₃(PhSi)]·2H₂O. The complex has been characterized by elemental analysis, IR and UV spectroscopy, X-ray crystallography, TG-DTA methods. Crystals of (TBA)₃[α-A-PW₉O₃₄(PhSiO)₃(PhSi)] are trigonal, space group R₃, with unit cell parameters: a=1.41696(16) nm, b=1.42163(16) nm, c=1.41661(16) nm, α=99.801(17)°, β=99.843(17)°, γ=99.844(17)°, V=2.7111(5) nm³. Z=1, R=0.0548. The anion consists of one α-A-PW₉O₃₄^9- framework which are grafted by three PhSiOgroups through six Si—O—W bridges, each of which is attached to the fourth PhSiO through three Si—O—Si bridges and become saturated closed cage structure.

Key words: Phenylsilicion, Trivacant heteropolyanion, Synthesis, Crystal structure

CLC Number:

O614.61⁺3

TrendMD:

WANG Jing-Ping, LI Ming-Xue, NIU Jing-Yang  . Synthesis and Crystal Structure of the Phenylsilyl Derivative of α-A-PW₉O₃₄^9- (TBA)₃[α-A-PW₉O₃₄(PhSiO)₃(PhSi)]·2H₂O[J]. Chem. J. Chinese Universities, 2002, 23(9): 1656.

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Synthesis and Crystal Structure of the Phenylsilyl Derivative of α-A-PW₉O₃₄^9- (TBA)₃[α-A-PW₉O₃₄(PhSiO)₃(PhSi)]·2H₂O

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