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| Type |
Poster Presentation |
| Area |
Physical Chemistry |
| Room No. |
Event Hall |
| Time |
4월 20일 (금요일) 11:00~12:30 |
| Code |
PHYS.P-223 |
| Subject |
Conformationally resolved spectra of 3-aminophenol by combination of resonance-enhanced multiphoton ionization (REMPI) spectroscopy and multivariate curve resolution (MCR) method |
| Authors |
MyeongWon Jeon, HEEJUN AN1, Hyuk Kang2,*
The Department of Energy Systems Research, Ajou University, Korea
1The Department of Energy Systems Research(DESR), Ajou University, Korea
2Department of Chemistry, Ajou University, Korea
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| Abstract |
Resonance enhanced multi-photon ionization (REMPI) combined with supersonic expansion and time-of-flight mass spectrometry (TOF-MS) has been a standard tool for laser spectroscopy of gas-phase molecules. It offers mass-resolved high-resolution UV spectra containing information of the vibronic states of the molecules in the absence of inhomogeneous broadening. It further renders conformation-specific UV or IR spectra when a second UV or IR laser is introduced and double-resonance spectroscopy is performed. In this study we aim to resolve REMPI spectra of mixed conformers by 2D correlation spectroscopy. A series of REMPI spectra are taken with a single UV laser varying an experimental parameter, and analyzed by a multivariate curve resolution (MCR) method. MCR is a novel theoretical approach to resolve the spectrum of mixed components into a pure spectrum of each component. REMPI spectra of 3-aminophenol, a simple molecule with only two conformers, were taken with varying experimental parameters like pulse valve-laser delay and laser power, and analyzed by MCR method as a proof-of-concept. |
| E-mail |
jmn430@ajou.ac.kr |
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121st General Meeting of the KCS