Decay constant for singlet oxygen in the solvent:

Cyclohexanol

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

Lifetime is 1.5 x 10–5 s
Decay rate is 6.6 x 104 s–1

Experimental method: pulsed laser photolysis, luminescence decay
Sensitizer is HPDME
T = 308K.

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 1.6 x 10–5 s
Decay rate is 6.3 x 104 s–1

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

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