Acidity constants of anthracene derivatives in singlet and triplet excited states
- 1 January 1968
- journal article
- research article
- Published by Royal Society of Chemistry (RSC) in Transactions of the Faraday Society
- Vol. 64, 3218-3223
- https://doi.org/10.1039/tf9686403218
Abstract
Acidity constants in the ground state (G) the lowest excited singlet (S1) and the lowest triplet (T1) states have been measured for four anthracene derivatives. Even when S1 and T1 are both La states, the pK of T1 is intermediate between that of G and S1 confirming the earlier generalization based on studes of naphthalene derivatives. However, the relatively large change in pK of the upper singlet, as compared with the triplet, which was characteristic of naphthalene derivatives is not found in the anthroic acids.Keywords
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