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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-130 |
| Subject |
Rotational constants, hyperfine structure, and nuclear quadrupole coupling tensor of 2-bromobutane using Fourier transform microwave spectroscopy |
| Authors |
Heesu Jang, Jihyun Kim1, Soohyun Ka2, Daniel A. Obenchain3, Rebecca A. Peebles3, Sean A. Peebles3, Jung Jin Oh*
Department of Chemistry, Sookmyung Women's University, Korea
1Department of Chemistry, Texas A&M University, United States
2Research Institute of Global Environment, Sookmyung Women's University, Korea
3Department of Chemistry, Eastern Illinois University, United States
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| Abstract |
Microwave spectra and hyperfine structure of 2-bromobutane (sec-butyl bromide, CH3CHBrCH2CH3) were measured in the frequency range of 8-18 GHz by a chirped-pulse and a resonant cavity Fourier transform microwave spectrometer. The complete nuclear quadrupole coupling tensors of bromine (χ) were obtained for the gauche+ (G+), anti (A), and gauche− (G−) conformers with 79Br and 81Br isotopologues, respectively. Rotational constants, centrifugal distortion constants, nuclear quadrupole coupling constants were determined for each species. Isotopic substitution made it possible to determine rs structure coordinates for Br atom of all conformers, and they are in good agreement with ab initio principal axis coordinates. In addition, the quadrupolar angles (θza) of 2-bromobutane are also compared with calculated values.
"본 연구는 환경부 「기후변화특성화대학원사업」의 지원으로 수행되었습니다."
"This work is financially supported by Korea Ministry of Environment(MOE) as 「Graduate School specialized in Climate Change」."
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| E-mail |
jjinoh@sookmyung.ac.kr |
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121st General Meeting of the KCS