1,3-Dimethylpyrazolo[1',2':2,3][1,2,3]triazolo[4,5-a]phenazin-4-ium Singlet oxygen

Albini, A.; Bettinetti, G.F.; Minoli, G.; Pietra, S.
J. Chem. Soc., Perkin Trans. 1, 2904-2908 (1980)

Reaction: 1,3-Dimethylpyrazolo[1',2':2,3][1,2,3]triazolo[4,5-a]phenazin-4-ium + ¹O₂^* ® products
Solvent: c-C₆H₁₂

k_react = 4.5 × 10⁷(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 543 nm

Self-sensitized; used solvent k_d = 5.9 × 10⁴ s^-1. [O₂] = air.

Albini, A.; Bettinetti, G.F.; Minoli, G.; Pietra, S.
J. Chem. Soc., Perkin Trans. 1, 2904-2908 (1980)

Reaction: 1,3-Dimethylpyrazolo[1',2':2,3][1,2,3]triazolo[4,5-a]phenazin-4-ium + ¹O₂^* ® products
Solvent: CHCl₃

k_react = 3.7 × 10⁷(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 543 nm

Self-sensitized; used solvent k_d = 1.7 × 10⁴ s^-1. [O₂] = air.

Albini, A.; Bettinetti, G.F.; Minoli, G.; Pietra, S.
J. Chem. Soc., Perkin Trans. 1, 2904-2908 (1980)

Reaction: 1,3-Dimethylpyrazolo[1',2':2,3][1,2,3]triazolo[4,5-a]phenazin-4-ium + ¹O₂^* ® products
Solvent: CHCl₃, 80%, CH₃OH, 20%

k_react = 6.3 × 10⁷(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 543 nm

Photosensitizer = Rose Bengal dianion; used solvent k_d = 5.4 × 10⁴ s^-1; Used singlet oxygen quantum yield for RB = 0.76. [O₂] = air.

Albini, A.; Bettinetti, G.F.; Minoli, G.; Pietra, S.
J. Chem. Soc., Perkin Trans. 1, 2904-2908 (1980)

Reaction: 1,3-Dimethylpyrazolo[1',2':2,3][1,2,3]triazolo[4,5-a]phenazin-4-ium + ¹O₂^* ® products
Reference Reaction: DPBF + ¹O₂^* ®
Solvent: CHCl₃, 80%, CH₃OH, 20%

k_react = 4.2 × 10⁷(L mol^-1 s^-1), k_reference = 8 × 10⁸(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Relative value measured by steady state method
Excitation wavelength: 543 nm

Photosensitizer = Rose Bengal dianion. [O₂] = air.

Albini, A.; Bettinetti, G.F.; Minoli, G.; Pietra, S.
J. Chem. Soc., Perkin Trans. 1, 2904-2908 (1980)

Reaction: 1,3-Dimethylpyrazolo[1',2':2,3][1,2,3]triazolo[4,5-a]phenazin-4-ium + ¹O₂^* ® products
Solvent: CHCl₃, 80%, CH₃OH, 20%

k_react = 6.4 × 10⁷(L mol^-1 s^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 543 nm

Photosensitizer = 1,3-Dimethylpyrazolo[1',2':2,3][1,2,3]triazolo[4,5-a]phenazin-4-ium. used solvent k_d = 5.8 × 10⁴ s^-1. [O₂] = air.