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Summary
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English: Electronic energy levels of an organic molecule. S0 is the ground state. S1, S2, S3 are excited singlet states. T1, T2, T3 are excited triplet states. S00, S01, S10 S11 etc. are vibrational sublevels.
Français : Niveaux d'énergie d'une molécule organique. S0 est le niveau fondamental. S1, S2, S3 sont des états singulets excités. T1, T2, T3 sont des états triplets excités. S00, S01, S10 S11 etc. sont des sous-niveaux vibrationnels.
Русский: Электронные уровни энергии органической молекулы. основное состояние. возбужденные синглетные состояния. возбужденные триплетные состояния, и др. – колебательные подуровни.
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{{Information |Description ={{en|1=Electronic energy levels of an organic molecule. S<sub>0</sub> is the ground state. S<sub>1</sub>, S<sub>2</sub>, S<sub>3</sub> are excited singlet states. T<sub>1</sub>, T<sub>2</sub>, T<sub>3</sub> are excited tripl