Benzophenone, 4,4'-bis(dimethylamino)-

Chattopadhyay, S.K.; Kumar, C.V.; Das, P.K.
J. Photochem. 30(1): 81-91 (1985)

Sensitizer: Benzophenone, 4,4'-bis(dimethylamino)-
Solvent: C6H6
Oxygen concentration: O2

Quantum yield of formation = __; 0.41T
Fraction of T1 yielding singlet oxygen = 0.37*; 0.41

Experimental method: pulsed laser photolysis
Data type: time resolved substrate disappearance; triplet acceptor absorbance at end-of-pulse

Reference sensitizer = BP; Singlet oxygen acceptor = DPBF; TSinglet oxygen acceptor = 1-MeNp; rel. to fDeltaT(ref. sens.) = 0.39; meas. phiT(S) = 1e; lambdaexc = 337 nm. Showed Proportion of T1 quenched by O2 (S and S') > 0.95.

Chattopadhyay, S.K.; Kumar, C.V.; Das, P.K.
J. Photochem. 30(1): 81-91 (1985)

Sensitizer: Benzophenone, 4,4'-bis(dimethylamino)-
Solvent: CH3CN
Oxygen concentration: O2

Quantum yield of formation = 0.16T
Fraction of T1 yielding singlet oxygen = 0.35

Experimental method: pulsed laser photolysis
Data type: time resolved substrate disappearance; triplet acceptor absorbance at end-of-pulse

Reference sensitizer = BP; Singlet oxygen acceptor = DPBF; TSinglet oxygen acceptor = 1-MeNp; rel. to fDeltaT(ref. sens.) = 0.37; meas. phiT(S) = 0.47e; lambdaexc = 337 nm. Showed Proportion of T1 quenched by O2 (S and S') > 0.95.

e Value of phiT(S) measured or quoted by the authors, used in this work to calculate phiDelta.
T Value corrected for 100% quenching of T1.
* Values recalculated using phiDelta(S') or fDeltaT(S') from Table 4 or from the quoted reference.
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