Singlet oxygen quantum yields QY3

1,2-Benzothiazin-4-one, 2,3-dihydro-2-methyl-, 1,1-dioxide

Western, A.; Van Camp, J.R.; Bensasson, R.; Land, E.J.; Kochevar, I.E.
Photochem. Photobiol. 46(4): 469-75 (1987)

Sensitizer: 1,2-Benzothiazin-4-one, 2,3-dihydro-2-methyl-, 1,1-dioxide
Solvent: C₆H₆
Oxygen concentration: air^a

Quantum yield of formation = 0.40*; 0.35

Experimental method: pulsed laser photolysis
Data type: luminescence intensity at end-of-pulse or under steady-state conditions

Reference sensitizer = Ac; rel. to phi_Delta(ref. sens.) = 0.73; lambda_exc = 355 nm.

Western, A.; Van Camp, J.R.; Bensasson, R.; Land, E.J.; Kochevar, I.E.
Photochem. Photobiol. 46(4): 469-75 (1987)

Sensitizer: 1,2-Benzothiazin-4-one, 2,3-dihydro-2-methyl-, 1,1-dioxide
Solvent: D₂O
Oxygen concentration: air^a

Quantum yield of formation = 0.20

Experimental method: pulsed laser photolysis
Data type: luminescence intensity at end-of-pulse or under steady-state conditions

Reference sensitizer = H₂TMpyP⁴⁺; rel. to phi_Delta(ref. sens.) = 0.74; lambda_exc = 265 nm.

Western, A.; Van Camp, J.R.; Bensasson, R.; Land, E.J.; Kochevar, I.E.
Photochem. Photobiol. 46(4): 469-75 (1987)

Sensitizer: 1,2-Benzothiazin-4-one, 2,3-dihydro-2-methyl-, 1,1-dioxide
Solvent: D₂O
Oxygen concentration: air^a

Quantum yield of formation = 0.18

Experimental method: pulsed laser photolysis
Data type: luminescence intensity at end-of-pulse or under steady-state conditions

Reference sensitizer = H₂TMpyP⁴⁺; rel. to phi_Delta(ref. sens.) = 0.74; lambda_exc = 355 nm.

^a Oxygen concentration not given; assumed to be air saturated.
* Values recalculated using phi_Delta(S') or f_Delta^T(S') from Table 4 or from the quoted reference.
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