Singlet oxygen quantum yields QY1

9,10-Anthraquinone, 1,2-diamino-

Byteva, I.M.; Gurinovich, G.P.; Golomb, O.L.; Karpov, V.V.
Zh. Prikl. Spektrosk. 44(4): 589-93 (1986)

Sensitizer: 9,10-Anthraquinone, 1,2-diamino-
Solvent: CHCl₃
Oxygen concentration: air^a

Quantum yield of formation = 0.03^T

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

Reference sensitizer = MPDME; rel. to phi_Delta(ref. sens.) = 0.77^b. Proportion of T₁ quenched by O₂ = 1.

Rembold, M.W.; Kramer, H.E.A.
J. Soc. Dyers Colour. 96(3): 122-6 (1980)

Sensitizer: 9,10-Anthraquinone, 1,2-diamino-
Solvent: CHCl₃
Oxygen concentration: air

Quantum yield of formation < 0.05

Experimental method: continuous photolysis
Data type: product appearance under steady-state conditions

Singlet oxygen acceptor = DMA; Product from substrate = 9,10-Dimethylanthracene endoperoxide; lambda_exc = 435 nm. Proportion of T₁ quenched by O₂ = 1.

Rtishchev, N.I.; Studzinskii, O.P.; Ponomareva, R.P.
J. Org. Chem. USSR 24(6): 1150-4 (1988)

Sensitizer: 9,10-Anthraquinone, 1,2-diamino-
Solvent: 2-PrOH/ H₂O (5:1)
Oxygen concentration: air

Quantum yield of formation = 0.04^T

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

Reference sensitizer = 1,5-AQ(NH₂)₂; Singlet oxygen acceptor = DPBF; rel. to phi_Delta(ref. sens.) = 0.80; lambda_exc = 545 nm.

^a Oxygen concentration not given; assumed to be air saturated.
^b Value of phi_Delta(S') used in this work to calculate phi_Delta(S) from authors'reported phi_Delta(S)/phi_Delta(S').
^T Value corrected for 100% quenching of T₁.
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