9-Diazofluorene Singlet oxygen

Casal, H.L.; Tanner, M.; Werstiuk, N.H.; Scaiano, J.C.
J. Am. Chem. Soc. 107, 4616-4620 (1985)

Reaction: 9-Diazofluorene + ¹O₂^* ® 9-Fluorenone oxide
Solvent: CH₃CN

k = 6.6 × 10⁷(L mol^-1 s^-1), T = 300K

Experimental method: Flash photolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly
Excitation wavelength: 587 nm

Photosensitizer = Methylene Blue.

Bethell, D.; McKeivor, R.
J. Chem. Soc., Perkin Trans. 2, 327-333 (1977)

Reaction: 9-Diazofluorene + ¹O₂^* ® products
Reference Reaction: 9,10-Dimethylanthracene + ¹O₂^* ®
Solvent: CH₃CN

k_react = 1.0 × 10⁸(L mol^-1 s^-1), k_reference = 1.7 × 10⁸(L mol^-1 s^-1)

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

Photosensitizer = Methylene Blue.

Bethell, D.; McKeivor, R.
J. Chem. Soc., Perkin Trans. 2, 327-333 (1977)

Reaction: 9-Diazofluorene + ¹O₂^* ® products and/or physical quenching
Solvent: CH₃CN

k = 1.0 × 10⁸(L mol^-1 s^-1)

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

Photosensitizer = Methylene Blue. used solvent k_d = 3.3 × 10⁴ s^-1.

Bethell, D.; McKeivor, R.
J. Chem. Soc., Perkin Trans. 2, 327-333 (1977)

Reaction: 9-Diazofluorene + ¹O₂^* ® products and/or physical quenching
Solvent: CHCl₃

k = 5.1 × 10⁷(L mol^-1 s^-1)

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

Photosensitizer = Methylene Blue. used solvent k_d = 1.7 × 10⁴ s^-1.

Bethell, D.; McKeivor, R.
J. Chem. Soc., Perkin Trans. 2, 327-333 (1977)

Reaction: 9-Diazofluorene + ¹O₂^* ® products
Reference Reaction: 9,10-Dimethylanthracene + ¹O₂^* ®
Solvent: CHCl₃

k_react = 6.8 × 10⁷(L mol^-1 s^-1), k_reference = 9.3 × 10⁷(L mol^-1 s^-1)

Experimental method: Chemical reaction
Analytical method: vis-UV absorption
Data type: Relative value measured by steady state method

¹O₂* from (PhO)₃PO₃.

Bethell, D.; McKeivor, R.
J. Chem. Soc., Perkin Trans. 2, 327-333 (1977)

Reaction: 9-Diazofluorene + ¹O₂^* ® products and/or physical quenching
Solvent: MeOH

k = 3.3 × 10⁷(L mol^-1 s^-1)

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

Photosensitizer = Methylene Blue. used solvent k_d = 1.4 × 10⁵ s^-1.