438469-63-7Relevant academic research and scientific papers
On the chemistry of a dibenzohypericin derivative
Obermueller,Etzlstorfer,Falk
, p. 89 - 96 (2002)
A hypericin derivative was synthesized in which instead of the methyl groups two benzene rings were condensed to the chromophoric system in order to extend its conjugation. This derivative showed lowered fluorescence and concomitantly enhanced sensitized production of active oxygen species as compared to hypericin. However, in contrast to intuition its long wavelength band remained unshifted in comparison to its parent compound hypericin. Geometry and absorption properties were also investigated by means of semiempirical calculations.
