Hydration of alumina cluster anions in the gas phase

Journal of the American Chemical Society
Anita K GianottoGary S Groenewold

Abstract

Hydration reactions of anionic aluminum oxide clusters were measured using a quadrupole ion trap secondary ion mass spectrometer, wherein the number of Lewis acid sites were determined. The extent of hydration varied irregularly as cluster size increased and indicated that the clusters possessed condensed structures where the majority of the Al atoms were fully coordinated, with a limited number of undercoordinated sites susceptible to hydrolysis. For maximally hydrated ions, the number of OH groups per Al decreased in an exponential fashion from 4.0 in Al(1) cluster to 1.4 in the Al(9) cluster, which was greater than that expected for a highly hydroxylated surface but less than that for solution phase alumina clusters.

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Citations

Feb 9, 2008·Journal of the American Society for Mass Spectrometry·Frédéric Aubriet, Jean-François Muller
Jan 11, 2005·The Journal of Chemical Physics·Ujjal DasCaroline Chick Jarrold
Jun 16, 2006·The Journal of Chemical Physics·Richard B WyrwasKrishnan Raghavachari
Jan 19, 2007·The Journal of Chemical Physics·Alfredo Guevara-GarcíaJ V Ortiz
Jan 21, 2006·The Journal of Chemical Physics·Ujjal Das, Krishnan Raghavachari
Jun 11, 2015·Journal of Molecular Modeling·Justyna Jaroszynska-WolinskaPawel M Kozlowski
Apr 20, 2016·ACS Applied Materials & Interfaces·Ffion AbrahamFlorian von Wrochem
Mar 28, 2007·Angewandte Chemie·Marek SierkaKnut R Asmis
Jul 21, 2009·Chemphyschem : a European Journal of Chemical Physics and Physical Chemistry·Marek SierkaLai-Sheng Wang
Jun 25, 2009·Analytical Chemistry·Veronica PinnickEmile A Schweikert
Oct 16, 2008·Journal of the American Chemical Society·Gabriele SantambrogioJoachim Sauer
May 13, 2009·The Journal of Physical Chemistry. a·Frederic AubrietChristopher M Leavitt
Apr 20, 2011·The Journal of Physical Chemistry. a·Xueli ChengDairong Chen

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