9-Acetylanthracene

Alfimov, M.V.; Buben, N.Ya.; Glagolev, V.L.; Kuyumdzhi, E.S.; Pomazan, Yu.V.; Shamshev, V.N.
Triplet-triplet absorption of some carbonyl-containing compounds.
Opt. Spectrosc. 42: 267-70 (1977)

9-Acetylanthracene
Solvent : ?, 81 K

wave length (nm) at maximum, extinction coefficient = 426, 20000

Triplet state population method: Flash photolysis
Extinction coefficient estimation method: Singlet depletion
Lifetime = (2.8 ± 0.3) x 104 micro sec.
Comments: *Phosphorescence decay; glass was either 1:3:3 1-methylPrOH to Et2O to isooctane or 1:9 MCH to mixture of EtOH and MeOH

Hamanoue, K.; Nakajima, K.; Hidaka, T.; Nakayama, T.; Teranishi, H.
Time-dependent picosecond transient absorption spectra of 9-acetylanthracene, benzophenone and acridine in solution.
Laser Chem. 4: 287-95 (1984)

9-Acetylanthracene
Solvent : Acetonitrile

wave length at maximum = 421a nm

Triplet state population method: Pulsed laser photolysis
Comments: Delay 320 ps

Hirayama, S.
Effect of substituent on the behaviour of the excited singlet and triplet states in carbonyl derivatives of anthracene of the type 9-X•CO•A.
J. Chem. Soc., Faraday Trans. 1 78: 2411-21 (1982)

9-Acetylanthracene
Solvent : EPA, 77 K

wave length at maximum = 429 nm

Triplet state population method: Flash photolysis
Lifetime = 2.95 x 104 micro sec.

Hirayama, S.; Kobayashi, T.
Picosecond-laser study of triplet state population of carbonyl derivatives of anthracene.
Chem. Phys. Lett. 52: 55-8 (1977)

9-Acetylanthracene
Solvent : Toluene

wave length at maximum = 410 nm

Triplet state population method: Pulsed laser photolysis
Rise time = 0.02 ± 0.004 nsec.
Comments: *Oxygen quenching

* Evidence supporting the assignment of the transient triplet state.
a Data have been obtained by computer-assisted digitization from spectrum in cited reference.
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