Slow photoelectron velocity-map imaging spectroscopy of the n-methylvinoxide anion
Abstract
High resolution photoelectron spectra of the n-methylvinoxide anion and its deuterated isotopologue are obtained by slow electron velocity-map imaging. Transitions between the $\tilde X$X̃ 1A′ anion ground electronic state and the radical $\tilde X$X̃ 2A″ and $\tilde A$Ã 2A′ states are observed. The major features in the spectra are attributed to transitions involving the lower energy cis conformers of the anion and neutral, while the higher energy trans conformers contribute only a single small peak. Franck–Condon simulations of the $\tilde X$X̃ 2A″ ← $\tilde X$X̃ 1A′ and $\tilde A$Ã 2A′ ← $\tilde X$X̃ 1A′ transitions are performed to assign vibrational structure in the spectrum and to aid in identifying peaks in the cis-n-methylvinoxy $\tilde X$X̃ 2A″ band that occur only through vibronic coupling. The experimental electron affinity and $\tilde A$Ã state term energy are found to be EA = 1.6106 ± 0.0008 eV and T0 = 1.167 ± 0.002 eV for cis-n-methylvinoxy.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Apr 06, 2011
- Source ID
- 10.1063/1.3572269
Entities
People
- Daniel Neumark
- Derek G. Van Der Poll
- Etienne Garand
- Jongjin B. Kim
- Tara I Yacovitch
Organizations
- Air Force Office of Scientific Research
- Lawrence Berkeley National Laboratory
- University of California