Mass-analyzed threshold ionization spectroscopy of o-dimethoxybenzene cation
Date Issued
2006
Date
2006
Author(s)
Huang, Ssu-Wei
DOI
zh-TW
Abstract
We use the resonant two-photon ionization (R2PI) and mass analyzed threshold ionization (MATI) spectroscopic techniques to record the vibrationally resolved spectra of o-dimethoxybenzene. The band origin of the S1←S0 electronic transition is found to be 35750 ± 2 cm-1 and the adiabatic ionization energy is 61617 ± 5 cm-1. By analying the ab initio and density functional calculations, we can give the spectral assignment to the spectrum and propose possible interpretation for our experimental finding. Finally, we compare o-dimethoxybenzene with other benzene derivatives to discuss the influence of vicinal substitution effect and substituent group effect on the electronic transition, ionization energy and molecule vibration.
Subjects
鄰-二甲氧基苯
質量解析臨界游離光譜
o-dimethoxybenzene
Mass-analyzed threshold ionization spectroscopy
Type
thesis
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