Solid-State Polymerization of Molecular Metal Oxide Clusters: Aluminum 12-Tungstophosphate

A. R. Siedle; Myles L. Brostrom; Thomas E. Wood; David C. Koskenmaki; Bernard Montez; Eric Oldfield

doi:10.1021/ja00187a019

Solid-State Polymerization of Molecular Metal Oxide Clusters: Aluminum 12-Tungstophosphate

A. R. Siedle, Myles L. Brostrom, Thomas E. Wood, David C. Koskenmaki, Bernard Montez, Eric Oldfield

Chemistry

Research output: Contribution to journal › Article › peer-review

Abstract

The molecular metal oxide cluster compound [Al(H₂O)₆]PW₁₂O₄₀.4H₂O reversibly dehydrates at 375 °C. Upon heating to ≥550 °C, irreversible conversion to AlPO₄ and cubic W0₃(a = 7.521 (5) A) occurs in a solid-state process likened to polymerization. The reaction has been studied by thermogravimetric analysis, differential scanning calorimetry, X-ray and electron diffraction as well as ²⁷A1 and ³¹P solid-state NMR. It is proposed as a model for synthesis of ceramics by sol-gel methods.

Original language	English (US)
Pages (from-to)	1665-1669
Number of pages	5
Journal	Journal of the American Chemical Society
Volume	111
Issue number	5
DOIs	https://doi.org/10.1021/ja00187a019
State	Published - Mar 1989

ASJC Scopus subject areas

Catalysis
General Chemistry
Biochemistry
Colloid and Surface Chemistry

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10.1021/ja00187a019

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title = "Solid-State Polymerization of Molecular Metal Oxide Clusters: Aluminum 12-Tungstophosphate",

abstract = "The molecular metal oxide cluster compound [Al(H2O)6]PW12O40.4H2O reversibly dehydrates at 375 °C. Upon heating to ≥550 °C, irreversible conversion to AlPO4 and cubic W03(a = 7.521 (5) A) occurs in a solid-state process likened to polymerization. The reaction has been studied by thermogravimetric analysis, differential scanning calorimetry, X-ray and electron diffraction as well as 27A1 and 31P solid-state NMR. It is proposed as a model for synthesis of ceramics by sol-gel methods.",

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T2 - Aluminum 12-Tungstophosphate

AU - Siedle, A. R.

AU - Brostrom, Myles L.

AU - Wood, Thomas E.

AU - Koskenmaki, David C.

AU - Montez, Bernard

AU - Oldfield, Eric

PY - 1989/3

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N2 - The molecular metal oxide cluster compound [Al(H2O)6]PW12O40.4H2O reversibly dehydrates at 375 °C. Upon heating to ≥550 °C, irreversible conversion to AlPO4 and cubic W03(a = 7.521 (5) A) occurs in a solid-state process likened to polymerization. The reaction has been studied by thermogravimetric analysis, differential scanning calorimetry, X-ray and electron diffraction as well as 27A1 and 31P solid-state NMR. It is proposed as a model for synthesis of ceramics by sol-gel methods.

AB - The molecular metal oxide cluster compound [Al(H2O)6]PW12O40.4H2O reversibly dehydrates at 375 °C. Upon heating to ≥550 °C, irreversible conversion to AlPO4 and cubic W03(a = 7.521 (5) A) occurs in a solid-state process likened to polymerization. The reaction has been studied by thermogravimetric analysis, differential scanning calorimetry, X-ray and electron diffraction as well as 27A1 and 31P solid-state NMR. It is proposed as a model for synthesis of ceramics by sol-gel methods.

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Solid-State Polymerization of Molecular Metal Oxide Clusters: Aluminum 12-Tungstophosphate

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