2-[7-(4-Chloro-1,3,3-trimethyl-2-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethylindolium, tetrafluoroborate Singlet oxygen

Carre, C.; Reichardt, C.; Lougnot, D.J.
J. Chim. Phys. Phys.-Chim. Biol. 84, 577-585 (1987)

Reaction: 2-[7-(4-Chloro-1,3,3-trimethyl-2-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethylindolium, tetrafluoroborate + ¹O₂^* ® products
Reference Reaction: DPBF + ¹O₂^* ®
Solvent: Propylene carbonate

k_react = 3.6 × 10⁸(L mol^-1 s^-1), k_reference = 1.0 × 10⁹(L mol^-1 s^-1), T = 293K

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Relative value measured directly

Photosensitizer = Methylene Blue.

Carre, C.; Reichardt, C.; Lougnot, D.J.
J. Chim. Phys. Phys.-Chim. Biol. 84, 577-585 (1987)

Reaction: 2-[7-(4-Chloro-1,3,3-trimethyl-2-indol-2-ylidene)-1,3,5-heptatrienyl]-1,3,3-trimethylindolium, tetrafluoroborate + ¹O₂^* ® physical quenching
Solvent: Propylene carbonate

k_quen = 2.6 × 10⁸(mol L^-1), T = 293K

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly using indicator
Excitation wavelength: 633 nm

Photosensitizer = Methylene Blue; Indicator = 1,3-Diphenylisobenzofuran. meas. k_total, calc. k_q knowing k_prod. [Sensitizer] = 2 × 10^-6 (mol L^-1).