Structure-property relationships in solid AlF3 lewis acids

Sven Schroeder; Norbert Weiher; Anna Makarowicz; Angela M. Beesley; Erhard Kemnitz; Sven L M Schroeder

doi:10.1063/1.2644677

Structure-property relationships in solid AlF3 lewis acids

Sven Schroeder, Norbert Weiher, Anna Makarowicz, Angela M. Beesley, Erhard Kemnitz, Sven L M Schroeder

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

Abstract

Understanding the structural cause of the high Lewis acidity in the novel solid Lewis acid AlF3 is of crucial importance to tailor this important material property to the specific needs of potential applications. Based on Al and F K-edge XAS studies, we are able to correlate high Lewis acidity with geometric distortions of the [AlF6] building blocks of AlF3. These distortions are induced by the presence of i-OPr ligands in the AlF3-x(i-OPr)x precursor material and can only be preserved by the application of a mild fluorinating agent like CCl 2F2. High Lewis acidity is not caused by electronic modification of the aluminium atom, but by the better exposure of reactants to the acid site in the high surface area materials. © 2007 American Institute of Physics.

Original language	English
Pages (from-to)	827-829
Number of pages	2
Journal	AIP Conference Proceedings
Volume	882
DOIs	https://doi.org/10.1063/1.2644677
Publication status	Published - 2007

Keywords

Al K-edge
Aluminium fluoride
F K-edge
X-ray absorption spectroscopy

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10.1063/1.2644677

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title = "Structure-property relationships in solid AlF3 lewis acids",

abstract = "Understanding the structural cause of the high Lewis acidity in the novel solid Lewis acid AlF3 is of crucial importance to tailor this important material property to the specific needs of potential applications. Based on Al and F K-edge XAS studies, we are able to correlate high Lewis acidity with geometric distortions of the [AlF6] building blocks of AlF3. These distortions are induced by the presence of i-OPr ligands in the AlF3-x(i-OPr)x precursor material and can only be preserved by the application of a mild fluorinating agent like CCl 2F2. High Lewis acidity is not caused by electronic modification of the aluminium atom, but by the better exposure of reactants to the acid site in the high surface area materials. {\textcopyright} 2007 American Institute of Physics.",

keywords = "Al K-edge, Aluminium fluoride, F K-edge, X-ray absorption spectroscopy",

author = "Sven Schroeder and Norbert Weiher and Anna Makarowicz and Beesley, {Angela M.} and Erhard Kemnitz and Schroeder, {Sven L M}",

year = "2007",

doi = "10.1063/1.2644677",

language = "English",

volume = "882",

pages = "827--829",

journal = "AIP Conference Proceedings",

issn = "1551-7616",

publisher = "American Institute of Physics",

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TY - JOUR

T1 - Structure-property relationships in solid AlF3 lewis acids

AU - Schroeder, Sven

AU - Weiher, Norbert

AU - Makarowicz, Anna

AU - Beesley, Angela M.

AU - Kemnitz, Erhard

AU - Schroeder, Sven L M

PY - 2007

Y1 - 2007

N2 - Understanding the structural cause of the high Lewis acidity in the novel solid Lewis acid AlF3 is of crucial importance to tailor this important material property to the specific needs of potential applications. Based on Al and F K-edge XAS studies, we are able to correlate high Lewis acidity with geometric distortions of the [AlF6] building blocks of AlF3. These distortions are induced by the presence of i-OPr ligands in the AlF3-x(i-OPr)x precursor material and can only be preserved by the application of a mild fluorinating agent like CCl 2F2. High Lewis acidity is not caused by electronic modification of the aluminium atom, but by the better exposure of reactants to the acid site in the high surface area materials. © 2007 American Institute of Physics.

AB - Understanding the structural cause of the high Lewis acidity in the novel solid Lewis acid AlF3 is of crucial importance to tailor this important material property to the specific needs of potential applications. Based on Al and F K-edge XAS studies, we are able to correlate high Lewis acidity with geometric distortions of the [AlF6] building blocks of AlF3. These distortions are induced by the presence of i-OPr ligands in the AlF3-x(i-OPr)x precursor material and can only be preserved by the application of a mild fluorinating agent like CCl 2F2. High Lewis acidity is not caused by electronic modification of the aluminium atom, but by the better exposure of reactants to the acid site in the high surface area materials. © 2007 American Institute of Physics.

KW - Al K-edge

KW - Aluminium fluoride

KW - F K-edge

KW - X-ray absorption spectroscopy

U2 - 10.1063/1.2644677

DO - 10.1063/1.2644677

M3 - Article

SN - 1551-7616

VL - 882

SP - 827

EP - 829

JO - AIP Conference Proceedings

JF - AIP Conference Proceedings

ER -

Structure-property relationships in solid AlF3 lewis acids

Abstract

Keywords

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