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Chemistry of (and on) transition metal cluster : a Fourier transform ion cyclotron resonance study of the reaction of niobium cluster cations with nitric oxide
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Harding, Dan J., Oliver, Thomas A. A., Walsh, Tiffany R., Drewello, Thomas, Woodruff, D. P., Derrick, Peter J. and Mackenzie, Stuart R. (2009) Chemistry of (and on) transition metal cluster : a Fourier transform ion cyclotron resonance study of the reaction of niobium cluster cations with nitric oxide. European Journal of Mass Spectrometry, Vol.15 (No.2, Sp. Iss. SI). pp. 83-90. doi:10.1255/ejms.945
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Official URL: http://dx.doi.org/10.1255/ejms.945
Abstract
The reactions of niobium cluster cations, Nb-n(+) (n = 2-19), with nitric oxide have been investigated using Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR). The overall reaction rate constants are found to be in reasonable agreement with collision rates calculated using the surface charge capture model. The dominant reaction for small clusters (n < 9) involves reaction-induced fragmentation resulting in the loss of either NbO or NbN. By contrast, the main reaction observed for the Larger clusters (n > 11) is sequential NO chemisorption. Clusters n = 9, 10 exhibit both extremes of behaviour and are the only clusters upon which there is evidence of NO decomposition with N-2 loss observed whenever multiple NO molecules are co-adsorbed. The rate constants for each process have been determined as a function of cluster size.
| Item Type: | Journal Article | ||||
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| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
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| Divisions: | Faculty of Science > Chemistry Faculty of Science > Physics |
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| Library of Congress Subject Headings (LCSH): | Fourier transform spectroscopy, Metal clusters, Niobium, Nitric oxide, Fragmentation reactions, Decomposition (Chemistry) | ||||
| Journal or Publication Title: | European Journal of Mass Spectrometry | ||||
| Publisher: | I M Publications | ||||
| ISSN: | 1469-0667 | ||||
| Official Date: | 2009 | ||||
| Dates: |
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| Volume: | Vol.15 | ||||
| Number: | No.2, Sp. Iss. SI | ||||
| Number of Pages: | 8 | ||||
| Page Range: | pp. 83-90 | ||||
| DOI: | 10.1255/ejms.945 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC) | ||||
| Grant number: | GR/S03966/01 (EPSRC), EP/C012070/1 (EPSRC) |
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