Singlet oxygen quantum yields QY1_21

Anthracene, 9,10-dimethyl- (DMA)

Petsold, O.M.; Byteva, I.M.; Gurinovich, G.P.
Opt. Spectrosc. (Engl. Transl.) 34(3): 343-4 (1973)

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: C₅H₅N
Oxygen concentration: O₂

Quantum yield of formation = 0.19

Experimental method: continuous photolysis
Data type: oxygen consumption under steady-state conditions

Singlet oxygen acceptor = H₂NCSNH₂; lambda_exc = 405 nm. Assumed f_r^A = 2.

Wu, K.C.; Trozzolo, A.M.
J. Phys. Chem. 83(24): 3180-3 (1979)

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: n-C₆H₁₄
Oxygen concentration: O₂

Quantum yield of formation = 1.1
Fraction of T₁ yielding singlet oxygen >=0.42
Fraction of S₁ yielding singlet oxygen >=0.41

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = 2,5-DMF; lambda_exc = 313 nm. Proportion of T₁ quenched by O₂ = 1; assumed FTO2 = 1; used p_A = 1.

Brauer, H.-D.; Acs, A.; Drews, W.; Gabriel, R.; Ghaeni, S.; Schmidt, R.
J. Photochem. 25(2-4): 475-88 (1984)

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: C₆H₅CH₃
Oxygen concentration: (2-9) x 10^-3

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = S. Assumed FTO2 = 1, phi_Tf_Delta^T = 0.05.

Stevens, B.; Ors, J.A.
J. Phys. Chem. 80(20): 2164-5 (1976)

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: C₆H₆
Oxygen concentration: air^a

Quantum yield of formation = 0.08^T
Fraction of T₁ yielding singlet oxygen = 1
Fraction of S₁ yielding singlet oxygen = 1

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = S. Assumed FTO2 = 1; f_Delta^T + f_Delta^S from phi_Delta when PSO2 = 1; phi_Tf_Delta^T = phi_Delta when PSO2 = 0.

Stevens, B.
Singlet Oxygen, Reactions with Organic Compounds and Polymers, B. Ranby and J.F. Rabek (eds.), John Wiley & Sons, New York, N.Y., 1976, p.54-60

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: C₆H₆
Oxygen concentration: air^a

Fraction of S₁ yielding singlet oxygen >=0.62

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = S. Assumed f_Delta^T = 1 and FTO2 = 1.

Stevens, B.; Algar, B.E.
J. Phys. Chem. 72(10): 3468-74 (1968)

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: C₆H₆
Oxygen concentration: O₂ var.

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = S; lambda_exc = 365 nm. phi_Tf_Delta^T/ (f_Delta^T + f_Delta^S) = 0.02 +- 0.05.

Stevens, B.; Marsh, K.L.; Barltrop, J.A.
J. Phys. Chem. 85(21): 3079-82 (1981)

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: C₆H₆
Oxygen concentration: 1.9 x 10^-3

Quantum yield of formation = 0.52

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = S; lambda_exc = 365 nm. Assumed FTO2 = 1; measured phi_Delta(S)/phi_Delta(ref. sens.) = 0.56, 0.59 and 0.91 for Reference sensitizer = Cor, An and BP, resp.

Stevens, B.; Marsh, K.L.; Barltrop, J.A.
J. Phys. Chem. 85(21): 3079-82 (1981)

Sensitizer: Anthracene, 9,10-dimethyl- (DMA)
Solvent: C₆H₆
Oxygen concentration: 9.0 x 10^-3

Quantum yield of formation = 1.0

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = S; lambda_exc = 365 nm; used phi_T(S) = ~0.02. Assumed FTO2 = 1; measured phi_Delta(S)/phi_Delta(ref. sens.) = 1.1, 0.91 and 1.1 for Reference sensitizer = Cor, An and BP, resp.

^a Oxygen concentration not given; assumed to be air saturated.
^T Value corrected for 100% quenching of T₁.
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