title: The separation of hypericin's enantiomers and their photophysics in chiral environments.
abstract: We report the first separation of the enantiomers of hypericin. Their steady-state optical spectra and ultrafast primary photoprocesses are investigated in chiral environments. Within experimental error, there is no difference between the two enantiomers in any of the systems considered. This is consistent with the emerging picture that the rich and extended absorption spectrum of hypericin is not a result of ground-state heterogeneity. It is also consistent with the observation that the spectra and photophysics of hypericin are generally insensitive to environments in which it does not aggregate.
authors.affiliation: Department of Chemistry, Iowa State University, Ames, IA 50011, USA.
authors.forename: Lindsay
authors.initials: L
authors.lastname: Sanders
authors.forename: Mintu
authors.initials: M
authors.lastname: Halder
authors.forename: Tom Ling
authors.initials: TL
authors.lastname: Xiao
authors.forename: Jie
authors.initials: J
authors.lastname: Ding
authors.forename: Daniel W
authors.initials: DW
authors.lastname: Armstrong
authors.forename: Jacob W
authors.initials: JW
authors.lastname: Petrich
mesh_terms: D000873:Anthracenes; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry / Q000302:isolation & purification*; D010777:Photochemistry; D055585:Physical Phenomena; D010825:Physics; D013050:Spectrometry, Fluorescence; D013237:Stereoisomerism
chemical_list: D000873:Anthracenes; D010569:Perylene; C004965:hypericin