Loading…
Triple-Resonance Spectroscopy Reveals the Excitation Spectrum of Very Cold, Isomer-Specific Protonated Naphthalene
The excitation spectrum of very cold, isomerically pure protonated naphthalene is obtained by resonant dissociation spectroscopy. The cations are prepared by a pair of laser pulses which ionize 1-hydronaphthyl radicals at threshold, thereby creating only cations of a particular isomer in the vibrati...
Saved in:
Published in: | The journal of physical chemistry letters 2013-11, Vol.4 (21), p.3728-3732 |
---|---|
Main Authors: | , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Citations: | Items that this one cites Items that cite this one |
Online Access: | Get full text |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Summary: | The excitation spectrum of very cold, isomerically pure protonated naphthalene is obtained by resonant dissociation spectroscopy. The cations are prepared by a pair of laser pulses which ionize 1-hydronaphthyl radicals at threshold, thereby creating only cations of a particular isomer in the vibrational ground state. Due to the small bandwidth of the first excitation laser, only the lowest rotational states are selected. The cold cation spectrum reveals a rich structure, some of which had previously been attributed to hot bands. However, the nature of the prepared cations is such that no hot bands appear, and the structure is assigned to a′ modes, and a′ combinations of a″ modes in the C s point group. The 12 excited-state frequencies extracted agree well with those calculated previously at the RI-CC2 level. [Alata, I.; Dedonder, C.; Broquier, M.; Marceca, E.; Jouvet, C. J. Am. Chem. Soc. 2010, 132, 17483–17489.] |
---|---|
ISSN: | 1948-7185 1948-7185 |
DOI: | 10.1021/jz401986t |