Premium
Dual Fluorescence of Novel Modified Carotenoids
Author(s) -
Bettermann Hans,
Bienioschek Martin,
Ippendorf Hans,
Martin HansDieter
Publication year - 1992
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199210421
Subject(s) - fluorescence , excited state , excitation , carotenoid , dual (grammatical number) , position (finance) , atomic physics , physics , chemistry , optics , quantum mechanics , food science , art , literature , finance , economics
Despite only a small energy difference between the lowest energy excited singlet states S 1 and S 2 , both the carotenoids 1 and 2 exhibit dual fluorescence. For the first time the energetic position of the S 1 state, which is not accessible by UV/VIS excitation, could be estimated. In 1 it lies 3000–3500 cm −l lower than the S 2 state; in 2 this gap is 3400–4000 cm −1 , which is also presumed to be the S 2 –S 1 difference in β‐carotene.
Accelerating Research
Robert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom
Address
John Eccles HouseRobert Robinson Avenue,
Oxford Science Park, Oxford
OX4 4GP, United Kingdom