Effects of aggregation on the phosphorescence of phenyl alkyl ketones in 77 k rigid glass solutions

The concentration dependence of the 77 K phosphorescence of propiophenone and acetophenone in methylcyclohexane and isopentane glasses implies extensive solute aggregation, arising from partial phase separation. Rationales for the observation of multiple emissions that are based on matrix rigidity d...

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Bibliographic Details
Published inChemical physics letters Vol. 96; no. 3; pp. 352 - 356
Main Authors Wismontski-Knittel, T., Kilp, T.
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.01.1983
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Summary:The concentration dependence of the 77 K phosphorescence of propiophenone and acetophenone in methylcyclohexane and isopentane glasses implies extensive solute aggregation, arising from partial phase separation. Rationales for the observation of multiple emissions that are based on matrix rigidity dependent rates of conformational relaxation of the triplet state should be viewed with a great deal of caution when aliphatic hydrocarbon glasses are used.
ISSN:0009-2614
1873-4448
DOI:10.1016/0009-2614(83)80688-5