Infrared multiple-photon photodissociation of gas-phase group II metal-nitrate anions
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Author | |
Abstract |
Infrared spectra of gas-phase metal-nitrate anions M(NO3)(3)(-), where M = Mg2+, Ca2+, Sr2+ and Ba2+, were recorded by infrared multiple-photon dissociation (IRMPD) spectroscopy. Photodissociation of each of the precursors produces NO3- through the elimination of a neutral M(NO3)(2) unit. An absorption pattern characteristic of metal nitrates is observed in the IRMPD spectra, including the symmetric and antisymmetric NO3 stretches. The latter is split into high-and low-frequency components as a result of perturbation of the nitrate symmetry by complexation to the metal ion, and the magnitude of the splitting decreases following the trend Mg2+ > Ca2+ >Sr2+ congruent to Ba2+. The experimental spectra are in good general agreement with those obtained from density functional theory (DFT) calculations. (C) 2008 Elsevier B.V. All rights reserved. |
Year of Publication |
2008
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Journal |
International Journal of Mass Spectrometry
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Volume |
273
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Number |
1-2
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Number of Pages |
24-30
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Date Published |
Jun
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Type of Article |
Article
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ISBN Number |
1387-3806
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Accession Number |
ISI:000256005100005
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URL | |
PId |
4bffa1d27a5aa4ad358a0814ba6bfaa0
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Alternate Journal |
Int. J. Mass Spectrom.
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Journal Article
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