The photoionization of perylene in acetonitrile solutions
β Scribed by K.H. Grellmann; A.R. Watkins
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 468 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0009-2614
No coin nor oath required. For personal study only.
β¦ Synopsis
Two mechanisms are responsible for the flash induced ionization of peryiene in aeetonitrile: a bimotecular reaction between an excited and an unexcited perylene molecule. and, at shorter exciting wzvelengths, direct dissociation of some higher excited singlet state.
π SIMILAR VOLUMES
Laser-flash-photolysis experiments show that, in MeCN at 20". perylene (P) undergoes three distinct electrontransfer reactions: a) IP\* + MeCN 4 P'+ + MeCN'b) ' P \* t P 4 P ' + + P ' c) 3P\* + 3P\* 4 (P.P)\* ~ P" + P' These processes originate probably from the thermally relaxed excited states of P
Am&-The reduction of pyrene (Py) at a mercury channel electrode is studied in acetonitrile solution, both in the dark and under conditions where the pyrene radical anion (Py-.) is photoexcited, using a wavelength of 501.7 nm. In the dark a reversible one-electron process occurs forming the radical a