On the structure and photodissociation of cluster ions in the gas phase. (N2) (O2+) and (NO)2+ |
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Authors: | Michael T. Bowers Andreas J. Illies Martin F. Jarrold |
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Affiliation: | Department of Chemistry, University of California, Santa Barbara, California 93106, USA |
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Abstract: | Results are presented for two experiments on N2O2+ cluster ions formed via the reactions O2+ + N2 + M → (N2) (O2+) + M (i), and NO+ + NO + M → (NO)2+ + M (ii). In the first experiment the N2O2+ clusters are collisionally dissociated. The resulting collision-induced dissociation (CID) spectra show almost exclusively O2+ and N2+ products from N2 O2+ formed via the first reaction, and almost exclusively NO+ products from N2O2+ formed via the second reaction. In the second experiment, single-photon photodissociation of N2O2+ ions produced by both reactions (i) and (ii) was investigate using 514.5 and 634 nm radiation. The results indicate that the N2O2+ cluster from reaction (i) cannot be photodissociated while the N2O2+ cluster from reaction (ii) undergoes photodissociation at both wavelengths. These experiments indicate that two distinct N2O2+ cluster ions exist and that reactions (i) and (ii) selectively produce the two ions. |
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