transition

https://doi.org/10.1351/goldbook.T06454
See: n → σ* transition, π → π* transition, π → σ* transition, σ → σ* transition
Source:
PAC, 1988, 60, 1055. 'Glossary of terms used in photochemistry (Recommendations 1988)' on page 1079 (https://doi.org/10.1351/pac198860071055)