title: Effect of structural modifications on the spectroscopic properties and dynamics of the excited states of peridinin.
abstract: 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.
authors.affiliation: Department of Chemistry, University of Connecticut, 55 North Eagleville Road, Storrs, CT 06269-3060, USA.
authors.forename: Nirmalya
authors.initials: N
authors.lastname: Chatterjee
authors.forename: Dariusz M
authors.initials: DM
authors.lastname: Niedzwiedzki
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Aoki
authors.forename: Takayuki
authors.initials: T
authors.lastname: Kajikawa
authors.forename: Shigeo
authors.initials: S
authors.lastname: Katsumura
authors.forename: Hideki
authors.initials: H
authors.lastname: Hashimoto
authors.forename: Harry A
authors.initials: HA
authors.lastname: Frank
mesh_terms: D002338:Carotenoids / Q000737:chemistry*; D015394:Molecular Structure; D013050:Spectrometry, Fluorescence / Q000379:methods
chemical_list: C016040:peridinin; D002338:Carotenoids