b-apo-8'-Carotenol Singlet oxygen

Foote, C.S.; Chang, Y.C.; Denny, R.W.
J. Am. Chem. Soc. 92, 5216-5218 (1970)

Reaction: b-apo-8'-Carotenol + ¹O₂^* ® products
Reference Reaction: 2-Methyl-2-pentene + ¹O₂^* ®
Solvent: C₆H₆, 80%, MeOH, 20%

k/k_reference = ~ 1900

Experimental method: Photolysis
Analytical method: gas chromatography
Data type: Relative value measured by steady state method

Photosensitizer = Methylene Blue; Meas. k/k_ref = ~1900.

Foote, C.S.; Denny, R.W.; Weaver, L.; Chang, Y.; Peters, J.
Ann. N.Y. Acad. Sci. 171, 139-145 (1970)

Reaction: b-apo-8'-Carotenol + ¹O₂^* ® products and/or physical quenching
Reference Reaction: 2-Methyl-2-pentene + ¹O₂^* ®
Solvent: C₆H₆, 80%, MeOH, 20%

k = 1.2 × 10¹⁰(L mol^-1 s^-1), k_reference = 3 × 10⁶(L mol^-1 s^-1), T = 298K

Experimental method: Photolysis
Analytical method: gas chromatography
Data type: Relative value measured by steady state method

Photosensitizer = Methylene Blue;