Decay constant for singlet oxygen in the solvent:

Acetonitrile

Scurlock, R.D.; Ogilby, P.R.
J. Photochem. Photobiol., A 72(1): 1-7 (1993)

Lifetime is 7.1 x 10–5 s
Decay rate is 1.4 x 104 s–1

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

Scurlock, R.D.; Ogilby, P.R.
J. Photochem. Photobiol., A 72(1): 1-7 (1993)

Lifetime is 7.7 x 10–5 s
Decay rate is 1.3 x 104 s–1

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

Ogilby, P.R.; Sanetra, J.
J. Phys. Chem. 97(18): 4689-94 (1993)

Decay rate is 1.4 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is Chr
rate decreased linearly with magnetic field strength, by 4-7% at 21kG.

Zahir, K.O.; Haim, A.
J. Photochem. Photobiol., A 63(2): 167-72 (1992)

Lifetime is 6.0 x 10–5 s
Decay rate is 1.6 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is Ru(bpy)32+.

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

Lifetime is 7.7 x 10–5 s
Decay rate is 1.3 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 8.0 x 10–5 s
Decay rate is 1.3 x 104 s–1

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

Nahm, K.; Foote, C.S.
J. Am. Chem. Soc. 111(5): 1909-10 (1989)

Decay rate is 1.3 x 104 s–1

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

Redmond, R.W.; Scaiano, J.C.
J. Phys. Chem. 93(14): 5347-9 (1989)

Lifetime is 7.5 x 10–5 s
Decay rate is 1.3 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is OMAPB
extrapolated to zero laser dose.

Studer, S.L.; Brewer, W.E.; Martinez, M.L.; Chou, P.-T.
J. Am. Chem. Soc. 111(19): 7643-4 (1989)

Lifetime is 8.3 x 10–5 s
Decay rate is 1.2 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is RB or H2TPPS4–.

Isak, S.J.; Komorowski, S.J.; Merrow, C.N.; Poston, P.E.; Eyring, E.M.
Appl. Spectrosc. 43(3): 419-22 (1989)

Lifetime is 3.3 x 10–5 s
Decay rate is 3.0 x 104 s–1

Experimental method: pulsed laser photolysis, thermal buildup
Sensitizer is (C6H5)2CO.

Clennan, E.L.; Noe, L.J.; Wen, T.; Szneler, E.
J. Org. Chem. 54(15): 3581-4 (1989)

Lifetime is 5.5 x 10–5 s
Decay rate is 1.8 x 104 s–1

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

Redmond, R.W.; Braslavsky, S.E.
NATO ASI Ser., Ser. H 15(Photosensitisation): 93-5 (1988)

Lifetime is 6.0 x 10–5 s
Decay rate is 1.7 x 104 s–1

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

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 6.7 x 10–5 s
Decay rate is 1.5 x 104 s–1

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

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

Decay rate is 1.2 x 104 s–1

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

Darmanyan, A.P.
Khim. Fiz. 6(9): 1192-8 (1987)

Lifetime is 5.5 x 10–5 s
Decay rate is 1.8 x 104 s–1

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

Chou, P.-T.; Frei, H.
J. Chem. Phys. 87(7): 3843-54 (1987)

Lifetime is 8.7 x 10–5 s
Decay rate is 1.2 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is RB
from high intensity photolysis; M = 1O2*.

Eisenthal, K.B.; Turro, N.J.; Dupuy, C.G.; Hrovat, D.A.; Langan, J.; Jenny, T.A.; Sitzmann, E.V.
J. Phys. Chem. 90(21): 5168-73 (1986)

Lifetime is 5.4 x 10–5 s
Decay rate is 1.9 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
1O2* from 9,10-diphenylanthracene endoperoxide.

Rossbroich, G.; Garcia, N.A.; Braslavsky, S.E.
J. Photochem. 31(1): 37-48 (1985)

Lifetime is 4.8 x 10–5 s
Decay rate is 2.1 x 104 s–1

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

Gorman, A.A.; Hamblett, I.; Smith, K.; Standen, M.C.
Tetrahedron Lett. 25(5): 581-4 (1984)

Lifetime is 5.6 x 10–5 s
Decay rate is 1.8 x 104 s–1

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

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

Lifetime is 3.6 x 10–5 s
Decay rate is 2.8 x 104 s–1

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

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

Lifetime is 5.8 x 10–5 s
Decay rate is 1.7 x 104 s–1

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

Manring, L.E.; Foote, C.S.
J. Am. Chem. Soc. 105(14): 4710-7 (1983)

Lifetime is 6.4 x 10–5 s
Decay rate is 1.6 x 104 s–1

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

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

Lifetime is 3.5 x 10–5 s
Decay rate is 2.9 x 104 s–1

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

Hurst, J.R.; McDonald, J.D.; Schuster, G.B.
J. Am. Chem. Soc. 104(7): 2065-7 (1982)

Lifetime is 6.1 x 10–5 s
Decay rate is 1.6 x 104 s–1

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

Hurst, J.R.; McDonald, J.D.; Schuster, G.B.
J. Am. Chem. Soc. 104(7): 2065-7 (1982)

Lifetime is 6.8 x 10–5 s
Decay rate is 1.5 x 104 s–1

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

Ogilby, P.R.; Foote, C.S.
J. Am. Chem. Soc. 104(7): 2069-70 (1982)

Lifetime is 5.4 x 10–5 s
Decay rate is 1.8 x 104 s–1

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

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

Lifetime is 5.8 x 10–5 s
Decay rate is 1.7 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.

Peters, G.; Rodgers, M.A.J.
J. Am. Chem. Soc. 103(22): 6759-61 (1981)

Lifetime is 9.2 x 10–5 s
Decay rate is 1.1 x 104 s–1

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

Young, R.H.; Brewer, D.R.
Singlet Oxygen, Reactions with Organic Compounds and Polymers, B. Ranby and J.F. Rabek (eds.), John Wiley & Sons, New York, N.Y., 1976, p.36-47

Lifetime is 5.7 x 10–5 s
Decay rate is 1.8 x 104 s–1

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

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

Lifetime is 3 x 10–5 s
Decay rate is 3 x 104 s–1

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

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