Rotamers of m-cresol cation studied by mass-analyzed threshold ionization spectroscopy.
We have applied two-color resonant two-photon mass-analyzed threshold ionization technique to record the vibrational spectra of the selected rotamers of m-cresol. The adiabatic ionization energies of cis and trans m-cresol are determined to be 66,933+/-5 and 67,084+/-5 cm(-1), respectively. Frequencies of the in-plane ring vibrations 6a, 1, and 9b are measured to be 528, 720, 1167 cm(-1) for the cis and 520, 698, and 1153 cm(-1) for the trans m-cresol cation. This indicates that different orientation of the OH group with respect to the CH(3) group slightly influences these ring vibrations.
Huang
Jiangou
J
The State Key Laboratory of Molecular Reaction Dynamics, Institute of Chemistry, Chinese Academy of Sciences, Zhongguancun, Beijing 100080, China.
Lin
Jung Lee
JL
Tzeng
Wen Bih
WB
D002412:Cations / Q000032:analysis* / Q000737:chemistry; D003408:Cresols / Q000032:analysis* / Q000737:chemistry; D019032:Spectrometry, Mass, Matrix-Assisted Laser Desorption-Ionization; D013237:Stereoisomerism
D002412:Cations; D003408:Cresols; C032538:4-cresol