'Triplet-Triplet Absorption Spectra

syn-[2.2](1,4)-Anthracenophane

Ishikawa, S.; Nakamura, J.; Iwata, S.; Sumitani, M.; Nagakura, S.; Sakata, Y.; Misumi, S.
Transannular interaction in the excited triplet states of [2.2]paracyclophane and related compounds.
Bull. Chem. Soc. Jpn. 52: 1346-50 (1979)

syn-[2.2](1,4)-Anthracenophane
Solvent : 2-MTHF, 77 K

wave length at maximum = 680^a; 650^a; 500^a; 460^a nm

Triplet state population method: Pulsed laser photolysis (coupled with energy transfer)
Comments: ^*Triplet ET from biacetyl

^* 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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