Effect of structural modifications on the spectroscopic properties and dynamics of the excited states of peridinin.
The spectroscopic properties and dynamics of the lowest excited singlet states of peridinin and two derivatives have been studied by steady-state absorption and fast-transient optical spectroscopic techniques. One derivative denoted PerOlEs, possesses a double bond and a methyl ester group instead of the r-ylidenebutenolide of peridinin. Another derivative denoted PerAcEs, is the biosynthetic precursor of peridinin and possesses a triple bond and a methyl ester group corresponding to the r-ylidenbutenolide function. Ultrafast time-resolved spectroscopic experiments in the visible and near-infrared regions were performed on the molecules and reveal the energies and regarding the structural features and interactions responsible for the unusual solvent-induced changes in the steady-state and transient absorption spectra and dynamics of dynamics of the excited electronic states. The data also provide information peridinin.
Chatterjee
Nirmalya
N
Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, CT 06269-3060, USA.
Niedzwiedzki
Dariusz M
DM
Aoki
Kazuyoshi
K
Kajikawa
Takayuki
T
Katsumura
Shigeo
S
Hashimoto
Hideki
H
Frank
Harry A
HA
D002338:Carotenoids / Q000737:chemistry*; D015394:Molecular Structure; D013050:Spectrometry, Fluorescence / Q000379:methods
C016040:peridinin; D002338:Carotenoids