Spectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+
We report a combined experimental and computational study of the structure and fragmentation dynamics of mixed ligand gas-phase ion–molecule complexes. Specifically, we have studied the infrared spectroscopy and vibrationally induced photofragmentation dynamics of mass-selected Au(CO)x(N2O)y+ comple...
Main Authors: | , , , |
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Format: | Journal article |
Language: | English |
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American Chemical Society
2021
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_version_ | 1797107538277171200 |
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author | Green, AE Brown, RH Meizyte, G Mackenzie, SR |
author_facet | Green, AE Brown, RH Meizyte, G Mackenzie, SR |
author_sort | Green, AE |
collection | OXFORD |
description | We report a combined experimental and computational study of the structure and fragmentation dynamics of mixed ligand gas-phase ion–molecule complexes. Specifically, we have studied the infrared spectroscopy and vibrationally induced photofragmentation dynamics of mass-selected Au(CO)x(N2O)y+ complexes. The structures can be understood on the basis of local CO and N2O chromophores in different solvation shells with CO found preferentially in the core. Rich fragmentation dynamics are observed as a function of complex composition and the vibrational mode excited. The dynamics are characterized in terms of branching ratios for different ligand loss channels in light of calculated internal energy distributions. Intramolecular vibrational redistribution appears to be rapid, and dissociation is observed into all energetically accessible channels with little or no evidence for preferential breaking of the weakest intermolecular interactions. |
first_indexed | 2024-03-07T07:17:34Z |
format | Journal article |
id | oxford-uuid:ebc20255-42bf-4a79-8556-fa18098c0047 |
institution | University of Oxford |
language | English |
last_indexed | 2024-03-07T07:17:34Z |
publishDate | 2021 |
publisher | American Chemical Society |
record_format | dspace |
spelling | oxford-uuid:ebc20255-42bf-4a79-8556-fa18098c00472022-08-16T09:52:46ZSpectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:ebc20255-42bf-4a79-8556-fa18098c0047EnglishSymplectic ElementsAmerican Chemical Society2021Green, AEBrown, RHMeizyte, GMackenzie, SRWe report a combined experimental and computational study of the structure and fragmentation dynamics of mixed ligand gas-phase ion–molecule complexes. Specifically, we have studied the infrared spectroscopy and vibrationally induced photofragmentation dynamics of mass-selected Au(CO)x(N2O)y+ complexes. The structures can be understood on the basis of local CO and N2O chromophores in different solvation shells with CO found preferentially in the core. Rich fragmentation dynamics are observed as a function of complex composition and the vibrational mode excited. The dynamics are characterized in terms of branching ratios for different ligand loss channels in light of calculated internal energy distributions. Intramolecular vibrational redistribution appears to be rapid, and dissociation is observed into all energetically accessible channels with little or no evidence for preferential breaking of the weakest intermolecular interactions. |
spellingShingle | Green, AE Brown, RH Meizyte, G Mackenzie, SR Spectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+ |
title | Spectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+ |
title_full | Spectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+ |
title_fullStr | Spectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+ |
title_full_unstemmed | Spectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+ |
title_short | Spectroscopy and infrared photofragmentation dynamics of mixed ligand ion–molecule complexes: Au(CO)x(N2O)y+ |
title_sort | spectroscopy and infrared photofragmentation dynamics of mixed ligand ion molecule complexes au co x n2o y |
work_keys_str_mv | AT greenae spectroscopyandinfraredphotofragmentationdynamicsofmixedligandionmoleculecomplexesaucoxn2oy AT brownrh spectroscopyandinfraredphotofragmentationdynamicsofmixedligandionmoleculecomplexesaucoxn2oy AT meizyteg spectroscopyandinfraredphotofragmentationdynamicsofmixedligandionmoleculecomplexesaucoxn2oy AT mackenziesr spectroscopyandinfraredphotofragmentationdynamicsofmixedligandionmoleculecomplexesaucoxn2oy |