Fragmentations and proton transfer reactions of mono-, di-, and triethanolamines were studied using FTMS. It was found that the most abundant fragment ion was [M−CH2OH]+. The [M−CH2OH−H2O]+ was observed in the mass spectra of diethanolamine and ...
http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
https://www.riss.kr/link?id=A103927918
Sung-Seen Choi* (세종대학교) ; 소헌영 (한국표준과학연구원)
2004
-
KCI등재,SCOPUS,SCIE
학술저널
1538-1544(7쪽)
3
0
상세조회0
다운로드다국어 초록 (Multilingual Abstract)
Fragmentations and proton transfer reactions of mono-, di-, and triethanolamines were studied using FTMS. It was found that the most abundant fragment ion was [M−CH2OH]+. The [M−CH2OH−H2O]+ was observed in the mass spectra of diethanolamine and ...
Fragmentations and proton transfer reactions of mono-, di-, and triethanolamines were studied using FTMS. It
was found that the most abundant fragment ion was [M−CH2OH]+. The [M−CH2OH−H2O]+ was observed in
the mass spectra of diethanolamine and triethanolamine. By increasing the ion trapping time in the ICR cell,
the [M+H]+ and [M+H−H2O]+ ions were notably increased for all the samples while the [M+H−2H2O]+ was
observed in the mass spectra of diethanolamine and triethanolamine. The proton transfer reactions between the
fragment ions and neutral molecules occurred predominantly by increasing the ion trapping time. The rate
constants for the proton transfer reactions were calculated from experimental results. The proton transfer
reaction of CHO+ was the fastest one, which is consistent with the heats of reaction. The rate constants for
proton transfer reactions of triethanolamine were much slower than those of ethanolamine and diethanolamine
because of the steric hindered structure of triethanolamine. The plausible structures of observed ions and heats
of reaction for proton transfer were calculated with AM1 semiempirical method.
Expeditious α-Hydroxylation of Ketones in Water Using Microwave Irradiation
학술지 이력
연월일 | 이력구분 | 이력상세 | 등재구분 |
---|---|---|---|
2023 | 평가예정 | 해외DB학술지평가 신청대상 (해외등재 학술지 평가) | |
2020-01-01 | 평가 | 등재학술지 유지 (해외등재 학술지 평가) | |
2008-01-01 | 평가 | SCI 등재 (기타) | |
2006-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2004-01-01 | 평가 | 등재학술지 유지 (등재유지) | |
2001-07-01 | 평가 | 등재학술지 선정 (등재후보2차) | |
1998-01-01 | 평가 | 등재후보학술지 선정 (신규평가) |
학술지 인용정보
기준연도 | WOS-KCI 통합IF(2년) | KCIF(2년) | KCIF(3년) |
---|---|---|---|
2016 | 0.58 | 0.11 | 0.38 |
KCIF(4년) | KCIF(5년) | 중심성지수(3년) | 즉시성지수 |
0.28 | 0.23 | 0.213 | 0.04 |