Helianthrene Singlet oxygen

Brauer, H.-D.; Acs, A.; Schmidt, R.
Ber. Bunsenges. Phys. Chem. 91, 1337-1346 (1987)

Reaction: Helianthrene + ¹O₂^* ® products and/or physical quenching
Solvent: n-C₅H₁₂

k = 4 × 10⁹(L mol^-1 s^-1), b = 8 × 10^-6(mol L^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 546 nm

Self-sensitized; used solvent k_d = 2.9 × 10⁴ s^-1. Added solute (4-50)e-5. [Sensitizer] = 2.0 × 10^-5 (mol L^-1). [O₂] = air.

Acs, A.; Schmidt, R.; Brauer, H.-D.
Ber. Bunsenges. Phys. Chem. 91, 1331-1337 (1987)

Reaction: Helianthrene + ¹O₂^* ® products
Solvent: C₆H₅CH₂OH

k_react = 2 × 10⁹(L mol^-1 s^-1), b = 3.0 × 10^-5(mol L^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 546 nm

Photosensitizer = MB. used solvent k_d = 7.1 × 10⁴ s^-1. Added solute (8-83)e-6. [Sensitizer] = 2.0 × 10^-5 (mol L^-1). [O₂] = air.

Acs, A.; Schmidt, R.; Brauer, H.-D.
Ber. Bunsenges. Phys. Chem. 91, 1331-1337 (1987)

Reaction: Helianthrene + ¹O₂^* ® products
Solvent: C₆H₅CH₃, 99%, MeOH, 1%

k_react = 4.7 × 10⁹(L mol^-1 s^-1), b = 8.6 × 10^-6(mol L^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 546 nm

Photosensitizer = MB. used solvent k_d = 4.0 × 10⁴ s^-1. Added solute (8-83)e-6. [Sensitizer] = 2.0 × 10^-5 (mol L^-1). [O₂] = air.

Acs, A.; Schmidt, R.; Brauer, H.-D.
Ber. Bunsenges. Phys. Chem. 91, 1331-1337 (1987)

Reaction: Helianthrene + ¹O₂^* ® products
Solvent: CH₃COCH₃

k_react = 4.6 × 10⁹(L mol^-1 s^-1), b = 5.5 × 10^-6(mol L^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 546 nm

Photosensitizer = MB. used solvent k_d = 2.5 × 10⁴ s^-1. Added solute (8-83)e-6. [Sensitizer] = 2.0 × 10^-5 (mol L^-1). [O₂] = air.

Acs, A.; Schmidt, R.; Brauer, H.-D.
Ber. Bunsenges. Phys. Chem. 91, 1331-1337 (1987)

Reaction: Helianthrene + ¹O₂^* ® products
Solvent: MeOH, 97%, C₆H₅CH₃, 3%

k_react = 5.1 × 10⁹(L mol^-1 s^-1), b = 2.2 × 10^-5(mol L^-1)

Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 546 nm

Photosensitizer = MB. used solvent k_d = 1.1 × 10⁵ s^-1. Added solute (8-83)e-6. [Sensitizer] = 2.0 × 10^-5 (mol L^-1). [O₂] = air.