In:
The Journal of Chemical Physics, AIP Publishing, Vol. 86, No. 12 ( 1987-06-15), p. 6654-6659
Abstract:
From the measurements of phosphorescence spectra and triplet–triplet absorptions of the title compounds, it has been proposed that the lowest triplet states (T1) of the α-chloro compounds are of mixed nπ*–ππ* or ππ* character, while the nπ* triplet states are the lowest ones for anthraquinone and 2-chloroanthraquinone (the β-chloro compound). Compared with anthraquinone and the β-chloro compound, much shorter lifetimes of the T1 states and small phosphorescence quantum yields were obtained for the α-chloro compounds. These results have been interpreted in terms of the modification of the geometrical molecular structure by the interaction of the carbonyl group with chlorine atom(s) at the α position(s), causing the T1 states to be of ππ* character with short lifetimes.
Type of Medium:
Online Resource
ISSN:
0021-9606
,
1089-7690
Language:
English
Publisher:
AIP Publishing
Publication Date:
1987
detail.hit.zdb_id:
3113-6
detail.hit.zdb_id:
1473050-9
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