Benzo[1,2,3-kl:4,5,6-\4k'l'\0]dixanthene Singlet oxygen

Opriel, U.; Seikel, K.; Schmidt, R.; Brauer, H.-D.
J. Photochem. Photobiol., A 49, 299-309 (1989)

Reaction: Benzo[1,2,3-kl:4,5,6-\4k'l'\0]dixanthene + ¹O₂^* ® products and/or physical quenching
Solvent: CS₂

k = 7.2 × 10⁷(L mol^-1 s^-1), T = 295K

Experimental method: Modulated photolysis
Analytical method: infrared luminescence
Data type: Absolute value measured directly
Excitation wavelength: 436 nm

Photosensitizer = 5,10,15,20-Tetraphenylporphine. Added solute (4-40)e-8.

Brauer, H.-D.; Acs, A.; Drews, W.; Gabriel, R.; Ghaeni, S.; Schmidt, R.
J. Photochem. 25, 475-488 (1984)

Reaction: Benzo[1,2,3-kl:4,5,6-\4k'l'\0]dixanthene + ¹O₂^* ® products and/or physical quenching
Solvent: C₆H₅CH₃

k = 1.0 × 10⁸(L mol^-1 s^-1), b = 5.1 × 10^-4(mol L^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements

Self-sensitized; used solvent k_d = 5 × 10⁴ s^-1; see also [82SCH/DRE2].