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The Irreversible Photochemistry of Bianthrone
Author(s) -
Korenstein R.,
Muszkat K. A.,
Fischer E.
Publication year - 1976
Publication title -
helvetica chimica acta
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.74
H-Index - 82
eISSN - 1522-2675
pISSN - 0018-019X
DOI - 10.1002/hlca.19760590540
Subject(s) - chemistry , photochemistry , singlet state , solvent , excited state , polar , primary (astronomy) , protic solvent , solvent effects , triplet state , organic chemistry , molecule , physics , astronomy , nuclear physics
A 4a,4b‐dihydrophenanthrene‐type cyclic photoisomer, the C isomer, is the major primary photoproduct of bianthrone in protic and aprotic polar solvents, and undergoes solvent‐dependent secondary reactions, including the formation of dihydrohelianthrone in protic solvents. The C isomer was shown to be formed through the singlet excited state while the B isomer is formed via the triplet manifold.
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