## half-life, $$T_{1/2}$$

of a photochromic system
https://doi.org/10.1351/goldbook.HT07390
Time necessary for thermal bleaching to half of the @[email protected] of the coloured form of a @[email protected] compound at a specific @[email protected] during one cycle.
Source:
PAC, 2007, 79, 293. (Glossary of terms used in photochemistry, 3rd edition (IUPAC Recommendations 2006)) on page 349 [Terms] [Paper]