Benzenebutanoic acid, alpha-amino-2-(formylamino)-gamma-oxo- (N-Formylkynurenine)

Krishna, C.M.; Uppuluri, S.; Riesz, P.; Zigler, J.S.,Jr.; Balasubramanian, D.
Photochem. Photobiol. 54(1): 51-8 (1991)

Sensitizer: Benzenebutanoic acid, alpha-amino-2-(formylamino)-gamma-oxo- (N-Formylkynurenine)
Solvent: H2O
Oxygen concentration: air

Quantum yield of formation = 0.17

Experimental method: continuous photolysis
Data type: product appearance under steady-state conditions

Reference sensitizer = RB; Singlet oxygen acceptor = Im; rel. to phiDelta(ref. sens.) = 0.76; lambdaexc = 332 nm. RNO as monitor of P.

Pileni, M.-P.; Santus, R.; Land, E.J.
Photochem. Photobiol. 28(4-5): 525-9 (1978)

Sensitizer: Benzenebutanoic acid, alpha-amino-2-(formylamino)-gamma-oxo- (N-Formylkynurenine)
Solvent: H2O
Oxygen concentration: 0.15 x 10-3

Quantum yield of formation = 0.15
Fraction of T1 yielding singlet oxygen = 0.75

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = TrpH; meas. phiT(S) = 0.20f; lambdaexc > 320 nm. PSO2 = 0; with kd = kDelta + kS[S].

Pileni, M.-P.; Santus, R.; Land, E.J.
Photochem. Photobiol. 28(4-5): 525-9 (1978)

Sensitizer: Benzenebutanoic acid, alpha-amino-2-(formylamino)-gamma-oxo- (N-Formylkynurenine)
Solvent: H2O
Oxygen concentration: 2 x 10-3

Quantum yield of formation = 0.17
Fraction of T1 yielding singlet oxygen = 0.85

Experimental method: continuous photolysis
Data type: substrate consumption under steady-state conditions

Singlet oxygen acceptor = TrpH; meas. phiT(S) = 0.20f; lambdaexc > 320 nm. PSO2 = 0; in presence of Type I photooxidation; with kd = kDelta + kS[S].

f Value of phiT(S) measured or quoted by the authors, used in this work to calculate fDeltaT.
back...