Decay constant for singlet oxygen in the solvent:

Cyclohexane

Schmidt, R.; Afshari, E.
Ber. Bunsenges. Phys. Chem. 96(6): 788-94 (1992)

Lifetime is 2.3 x 10–5 s
Decay rate is 4.3 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is MB, TPP or PHO.

Kristiansen, M.; Scurlock, R.D.; Iu, K.-K.; Ogilby, P.R.
J. Phys. Chem. 95(13): 5190-7 (1991)

Lifetime is 2.3 x 10–5 s
Decay rate is 4.3 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is 1-MeNp.

Iu, K.-K.; Thomas, J.K.
J. Am. Chem. Soc. 112(9): 3319-25 (1990)

Lifetime is 2.4 x 10–5 s
Decay rate is 4.2 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is 2-ACN.

Gorman, A.A.; Hamblett, I.; Lambert, C.; Prescott, A.L.; Rodgers, M.A.J.; Spence, H.M.
J. Am. Chem. Soc. 109(10): 3091-7 (1987)

Lifetime is 2.4 x 10–5 s
Decay rate is 4.3 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is Np, Bp, or Fl.

Scurlock, R.D.; Ogilby, P.R.
J. Phys. Chem. 91(17): 4599-602 (1987)

Decay rate is 5.2 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is Ac.

Chattopadhyay, S.K.; Kumar, C.V.; Das, P.K.
J. Photochem. 24(1): 1-9 (1984)

Decay rate is 5.0 x 104 s–1

Experimental method: pulsed laser photolysis, substrate disappearance
Sensitizer is 2-ACN;
Substrate is DPBF.

Fuke, K.; Ueda, M.; Itoh, M.
J. Am. Chem. Soc. 105(5): 1091-6 (1983)

Lifetime is 2.0 x 10–5 s
Decay rate is 5.0 x 104 s–1

Experimental method: pulsed laser photolysis, thermal buildup
Sensitizer is TPP.

Rodgers, M.A.J.
J. Am. Chem. Soc. 105(20): 6201-5 (1983)

Lifetime is 2.3 x 10–5 s
Decay rate is 4.3 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is HPDME.

Gorman, A.A.; Gould, I.R.; Hamblett, I.
J. Am. Chem. Soc. 104(25): 7098-104 (1982)

Lifetime is 2.0 x 10–5 s
Decay rate is 5.0 x 104 s–1

Experimental method: pulsed laser photolysis, substrate disappearance
Sensitizer is An;
Substrate is DPBF.

Jenny, T.A.; Turro, N.J.
Tetrahedron Lett. 23(29): 2923-6 (1982)

Lifetime is 1.7 x 10–5 s
Decay rate is 5.9 x 104 s–1

Experimental method: continuous photolysis, luminescence intensity
Sensitizer is Benz[de]anthracen-7-one, phenalenone or fluorenone
rel. to kd = 4.0 x 104 s–1 in benzene.

Salokhiddinov, K.I.; Byteva, I.M.; Gurinovich, G.P.
J. Appl. Spectrosc. 34(5): 561-4 (1981)

Lifetime is 2.3 x 10–5 s
Decay rate is 4.3 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is PdMPDME.

Merkel, P.B.; Kearns, D.R.
J. Am. Chem. Soc. 94(21): 7244-53 (1972)

Lifetime is 1.7 x 10–5 s
Decay rate is 5.9 x 104 s–1

Experimental method: pulsed laser photolysis, substrate disappearance
Sensitizer is MB,
Substrate is DPBF, kd cor. for 2% MeOH content.

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