Decay constant for singlet oxygen in the solvent: Cyclohexane-d12

Lifetime is 4.5 x 10^–4 s
Decay rate is 2.2 x 10³ s^–1

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

Lifetime is 3.2 x 10^–4 s
Decay rate is 3.1 x 10³ s^–1

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