๐”– Bobbio Scriptorium
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Quenching of excited singlet states by metal ions

โœ Scribed by James A. Kemlo; T.Maurice Shepherd


Publisher
Elsevier Science
Year
1977
Tongue
English
Weight
533 KB
Volume
47
Category
Article
ISSN
0009-2614

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๐Ÿ“œ SIMILAR VOLUMES


Quenching of singlet and triplet excited
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The mechanism of fluorescence quenching of anthracene by dimethylmercury, tetramethyllead end tetramethyltin has been examined by fluorescence and flash photolysis measurements. The increased rates OF SI -T, and TI -S6 Intersystem-crossings induced by the heavy-atom molecules are discussed

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Measurements of the efficiency of rubrene-sensitized photooxidation of 1,3-diphenylisobenzofuran imply that direct formation of singlet oxygen via oxygen quenching of excited rubrene singlets is inefficient. This contrasts with recent puhlications based upon studies of self-sensitized rubrene photoo

Formation of triplets of aromatic hydroc
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Quenching of aromatic excited singlet states (9,10-dimethyl anthracene, 9,10-diphenyl anthracene and perylene) by nitroxyl radical was studied by flash photolysis and fluorimetrically. It is established that the dominant quenching mechanism is enhanced intersystem crossing in the collision complex w

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The ralc conskmts of quenching of singlet :mtl triplet states by oxygen hnve been measured for nine :~rom:~~ic h.vdroc:Irbons in solution. Singlcl quenching is diffusion controlled and similnr in nil cases but triplet quenching is slo~cr :md the quenching rrltc constant is closely r&ted to the recip