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Molecules 2017, 22(2), 201; doi:10.3390/molecules22020201

Metal Fluorides, Metal Chlorides and Halogenated Metal Oxides as Lewis Acidic Heterogeneous Catalysts. Providing Some Context for Nanostructured Metal Fluorides

School of Chemistry, University of Glasgow, G12 8QQ Glasgow, UK
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Author to whom correspondence should be addressed.
Academic Editor: Erhard Kemnitz
Received: 1 December 2016 / Revised: 13 January 2017 / Accepted: 17 January 2017 / Published: 28 January 2017
(This article belongs to the Special Issue Nano-sized Metal Fluorides: Novel Approaches to Lewis Acid Catalysts)
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Abstract

Aspects of the chemistry of selected metal fluorides, which are pertinent to their real or potential use as Lewis acidic, heterogeneous catalysts, are reviewed. Particular attention is paid to β-aluminum trifluoride, aluminum chlorofluoride and aluminas γ and η, whose surfaces become partially fluorinated or chlorinated, through pre-treatment with halogenating reagents or during a catalytic reaction. In these cases, direct comparisons with nanostructured metal fluorides are possible. In the second part of the review, attention is directed to iron(III) and copper(II) metal chlorides, whose Lewis acidity and potential redox function have had important catalytic implications in large-scale chlorohydrocarbons chemistry. Recent work, which highlights the complexity of reactions that can occur in the presence of supported copper(II) chloride as an oxychlorination catalyst, is featured. Although direct comparisons with nanostructured fluorides are not currently possible, the work could be relevant to possible future catalytic developments in nanostructured materials. View Full-Text
Keywords: metal fluoride; metal fluoride; oxohalide; catalysis; lewis acid; oxychlorination; chlorofluorocarbon; chlorohydrocarbon metal fluoride; metal fluoride; oxohalide; catalysis; lewis acid; oxychlorination; chlorofluorocarbon; chlorohydrocarbon
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Lennon, D.; Winfield, J.M. Metal Fluorides, Metal Chlorides and Halogenated Metal Oxides as Lewis Acidic Heterogeneous Catalysts. Providing Some Context for Nanostructured Metal Fluorides. Molecules 2017, 22, 201.

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