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PHOTOPHYSICAL PROPERTIES OF FLUORENONES WITH CHIRAL SUBSTITUENTS AND THEIR ASYMMETRIC RECOGNITION THROUGH INTERMOLECULAR HYDROGEN BONDING INTERACTIONS IN THE EXCITED STATES
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  • PHOTOPHYSICAL PROPERTIES OF FLUORENONES WITH CHIRAL SUBSTITUENTS AND THEIR ASYMMETRIC RECOGNITION THROUGH INTERMOLECULAR HYDROGEN BONDING INTERACTIONS IN THE EXCITED STATES
  • PHOTOPHYSICAL PROPERTIES OF FLUORENONES WITH CHIRAL SUBSTITUENTS AND THEIR ASYMMETRIC RECOGNITION THROUGH INTERMOLECULAR HYDROGEN BONDING INTERACTIONS IN THE EXCITED STATES
저자명
Aikawa. Yoshihide,Shimada. Tetsuya,Tachibana. Hiroshi,Inoue. Haruo
간행물명
Journal of photoscience: an international journal officail organ of the Korean Society of Photoscience
권/호정보
1999년|6권 4호|pp.165-170 (6 pages)
발행정보
한국광과학회
파일정보
정기간행물|ENG|
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Asymmetric recognition of chiral alcohol by fluorenone derivatives with chiral substituents through intermolecular hydrogen bonding interaction in the singlet excited state was attempted. 1-((1S, 2R, 5S)-(+)-Menthyloxycarbonyl)aminofluoren-9-one (1-MAF) and 1-((1S, 2R, 5S)-(+)-menthyloxycarbonyl)oxyfluoren-9-one (1-MOF) were synthesized and their photophysical behaviors were characterized by the measurement of absorption and fluorescence spectra, as well as the quantum yield and the lifetime of fluorescence. The excited singlet states of 1-MAF and 1-MOF were revealed to have characteristics similar to those of fluorenone, though the intramolecular CT nature was fairly suppressed as compared with 3- and 4-substituted aminofluorenones. Fluorescences of 1-MAF and 1-MOF in acetonitrile were quenched by the addition of alcohols. Differences in fluorescence quenching efficiency were hardly observe for rather small chiral alcohols such as (R)-(-)- or (S)-(+)-2-butanol, while bulky alcohols such as menthol and isopinocampheol showed chiral recognition effects in their fluorescence quenching of 1-MAF in either acetonitrile or butyronitrile.