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https://hdl.handle.net/2440/23534
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Type: | Journal article |
Title: | Gas-phase synthesis and reactivity of binuclear gold hydride cations, (R3PAu)(2)H+ (R = Me and Ph) |
Author: | Khairallah, G. O'Hair, R. Bruce, M. |
Citation: | Dalton Transactions: an international journal of inorganic chemistry, 2006; 30(30):3699-3707 |
Publisher: | Royal Soc Chemistry |
Issue Date: | 2006 |
ISSN: | 1477-9226 1477-9234 |
Statement of Responsibility: | George N. Khairallah, Richard A. J. O'Hair and Michael I. Bruce, |
Abstract: | Electrospray ionization of a mixture of the two gold phosphine chlorides, R3PAuCl (R = Ph and Me), silver nitrate and the amino acid N,N-dimethylglycine (DMG) yields a range of gold containing cluster ions including: (R3P)Au(PR'3)+; (R3PAu)(R'3PAu)Cl+ and (R3PAu)(R'3PAu)(DMG-H)+ (where R = R' = Ph; R = R' = Me; R = Me and R' = Ph). Collision induced dissociation (CID) of the (R3PAu)(R'3PAu)(DMG-H)+ precursor ions yielded the hitherto unknown gold hydride dimers (R3PAu)(R'3PAu)H+. The gas-phase chemistry of these dimers was studied using ion-molecule reactions, collision induced dissociation, electronic excitation dissociation (EED) and DFT calculations on the (H3PAu)2H+ model system. A novel phosphine ligand migration was found to occur prior to fragmentation under CID conditions and this was supported by DFT calculations, which revealed a transition state with a bridging phosphine ligand. |
Keywords: | Cations Phosphines Crystallography, X-Ray Spectrometry, Mass, Electrospray Ionization Models, Statistical Electrochemistry Fourier Analysis Cyclotrons Models, Chemical Models, Molecular Organogold Compounds Mass Spectrometry |
Description: | © Royal Society of Chemistry 2006 |
DOI: | 10.1039/b604404b |
Published version: | http://www.rsc.org/publishing/journals/DT/article.asp?doi=b604404b |
Appears in Collections: | Aurora harvest 2 Chemistry publications |
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