ANYL 125 |
| Time-resolved infra-red spectroscopy (TRIR) and Density Functional Theory (DFT) calculations were used to directly observe and identify the triplet states of psoralen, 8-methoxypsoralen, 5-methoxypaoralen and trimethoxypsoralen. Trimethoxypsoralen TRIR spectra of its radical cation, radical anion and related neutral radical were obtained upon 266 nm laser flash photolysis in acetonitrile and in deuterated acetonitrile. Its radical anion, radical cation and neutral radical were observed in the presence of NaI, chloranil and hydroquinone, respectively. The TRIR spectra are in good agreement with the calculated vibrational spectra. |
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General Papers
7:00 PM-9:00 PM, Sunday, 28 August 2005 Washington DC Convention Center -- Hall A, Poster
Division of Analytical Chemistry |