Evidence rs presented that the excited singlet and triplet states of aromatic hydrocarbons are oxidised by methyi viologen (hlV2>. Rate constants for electron transfer from triplet naphthalene, anthracene, phenanthrene and fluoranthene are close to diffusion-controlled whereas those for triplet l-cy
Internal conversion from the lowest excited singlet states of aromatic hydrocarbons
β Scribed by A. Kearvell; F. Wilkinson
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 186 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0009-2614
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π SIMILAR VOLUMES
PPP cnIcul&ion$ on I-arylbutadlcnes prcdlct il forblddcn transition slightly below the first allowed transition. The two lowest cxltcd Gngiet states have different cAxMed charge dcnsttics, implying different types of photochemical reaction.
With hqwd \_wlutlons of the aromstlc ketones anthraqumone and 'lamhone, a P-type delayed fluorescence from upper ewited smglet states, resultmg from tnplet-tnplet annihdation, has been obsened. Some peculurltles of the triplet-triplet annihilation of aromatlc ketones are dacussed.
## Abstract __The experimental ultrafast photophysics of thioxanthone in several aprotic organic solvents at room temperature is presented, measured using femtosecond transient absorption together with highβlevel ab initio CASPT2 calculations of the singletβ and tripletβstate manifolds in the gas p