Mesodiphenylhelianthrene
Singlet oxygen
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Mesodiphenylhelianthrene
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Opriel, U.; Seikel, K.; Schmidt, R.; Brauer, H.-D.
J. Photochem. Photobiol., A 49, 299-309 (1989)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: CS2
k = 2.0 × 109(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 (2-20)e-9.
Brauer, H.-D.; Acs, A.; Schmidt, R.
Ber. Bunsenges. Phys. Chem. 91, 1337-1346 (1987)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: n-C5H12
k = 4 × 109(L mol-1 s-1), b = 7 × 10-6(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly
Excitation wavelength: 546 nm
Self-sensitized; used solvent kd = 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: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: C6H5CH2OH
k = 2.6 × 109(L mol-1 s-1), b = 3 × 10-5(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 578 nm
Photosensitizer = MB; used solvent kd = 7.1 × 104 s-1; 35% product formation.
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: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: C6H5CH3, 99%, MeOH, 1%
k = 5 × 109(L mol-1 s-1), b = 8.2 × 10-6(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 578 nm
Photosensitizer = MB; used solvent kd = 4.0 × 104 s-1; meas. 29% product formation.
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: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: CH3COCH3
k = 5 × 109(L mol-1 s-1), b = 5.2 × 10-6(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 578 nm
Photosensitizer = MB; used solvent kd = 2.5 × 104 s-1; 30% product formation.
Added solute (8-83)e-6.
[Sensitizer] = 2.0 × 10-5 (mol L-1).
[O2] = air.
Jardon, P.; Lazortchak, N.; Gautron, R.
J. Chim. Phys. Phys.-Chim. Biol. 84, 1141-1145 (1987)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
Mesodiphenylhelianthrene
Solvent: CH3CH2OH
k = 7.0 × 109(L mol-1 s-1), T = 293K
Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly
Excitation wavelength: 308 nm
Photosensitizer = Anthracene.
[Sensitizer] = 5.1 × 10-6 (mol L-1).
Acs, A.; Schmidt, R.; Brauer, H.-D.
Ber. Bunsenges. Phys. Chem. 91, 1331-1337 (1987)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: MeOH, 97%, C6H5CH3, 3%
k = 4 × 109(L mol-1 s-1), b = 2.6 × 10-5(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements
Excitation wavelength: 578 nm
Photosensitizer = MB; used solvent kd = 1.1 × 105 s-1; 27% product formation.
Added solute (8-83)e-6.
[Sensitizer] = 2.0 × 10-5 (mol L-1).
[O2] = air.
Acs, A.; Schmidt, R.; Brauer, H.-D.
Photochem. Photobiol. 38, 527-531 (1983)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: c-C6H12
k = 7.5 × 109(L mol-1 s-1), b = 6.7 × 10-6(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator
Excitation wavelength: 546 nm
Self-sensitized; Indicator = b-Carotene. used solvent kd = 5.0 × 104 s-1.
Use b-Carotene as quencher.
[O2] = air.
Acs, A.; Schmidt, R.; Brauer, H.-D.
Photochem. Photobiol. 38, 527-531 (1983)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: C6H5CH3
k = 7.3 × 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 using indicator
Excitation wavelength: 546 nm
Self-sensitized; Indicator = b-Carotene. used solvent kd = 4.0 × 104 s-1.
Use b-Carotene as quencher.
[O2] = air.
Acs, A.; Schmidt, R.; Brauer, H.-D.
Photochem. Photobiol. 38, 527-531 (1983)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: CH3COCH3
k = 5.7 × 109(L mol-1 s-1), b = 3.9 × 10-6(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator
Excitation wavelength: 546 nm
Self-sensitized; Indicator = b-Carotene. used solvent kd = 2.2 × 104 s-1.
Use b-Carotene as quencher.
[O2] = air.
Acs, A.; Schmidt, R.; Brauer, H.-D.
Photochem. Photobiol. 38, 527-531 (1983)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: CHCl3
k = 3.4 × 109(L mol-1 s-1), b = 1.2 × 10-6(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator
Excitation wavelength: 546 nm
Self-sensitized; Indicator = b-Carotene. used solvent kd = 4.3 × 104 s-1.
Use b-Carotene as quencher.
[O2] = air.
Acs, A.; Schmidt, R.; Brauer, H.-D.
Photochem. Photobiol. 38, 527-531 (1983)
Reaction: Mesodiphenylhelianthrene + 1O2* ®
products and/or physical quenching
Solvent: CS2
k = 1.1 × 109(L mol-1 s-1), b = 6 × 10-7(mol L-1)
Experimental method: Photolysis
Analytical method: vis-UV absorption
Data type: Derived from steady state measurements using indicator
Excitation wavelength: 546 nm
Self-sensitized; Indicator = b-Carotene. used solvent kd = 1.1 × 103 s-1.
Use b-Carotene as quencher.
[O2] = air.