TY - JOUR
T1 - Efficiency of singlet oxygen generation from the triplet states of nitrophenyl ethers
AU - Mir, Miquel
AU - Jansen, Lisinka M.G.
AU - Wilkinson, Francis
AU - Bourdelande, Jose L.
AU - Marquet, Jordi
PY - 1998/2/28
Y1 - 1998/2/28
N2 - The bimolecular rate constants for oxygen quenching, kTO2, and the quantum yields of singlet oxygen production, φΔ, for 4-nitroveratrole, 4-nitroanisole and 3-nitroanisole triplet states in air-equilibrated deuterated water and acetonitrile solutions were determined where possible from nanosecond laser flash photolysis and time-resolved O2 (1Δg) phosphorescence measurements. The results show that the efficiency of singlet oxygen production, fΔT, for 4-nitroveratrole and 3-nitroanisole is moderately high and is related with the nature of the low-lying triplet state and that 4-nitroanisole is not able to sensitize singlet oxygen under these conditions. © 1998 Elsevier Science S.A.
AB - The bimolecular rate constants for oxygen quenching, kTO2, and the quantum yields of singlet oxygen production, φΔ, for 4-nitroveratrole, 4-nitroanisole and 3-nitroanisole triplet states in air-equilibrated deuterated water and acetonitrile solutions were determined where possible from nanosecond laser flash photolysis and time-resolved O2 (1Δg) phosphorescence measurements. The results show that the efficiency of singlet oxygen production, fΔT, for 4-nitroveratrole and 3-nitroanisole is moderately high and is related with the nature of the low-lying triplet state and that 4-nitroanisole is not able to sensitize singlet oxygen under these conditions. © 1998 Elsevier Science S.A.
KW - Acetonitrile solution
KW - Nitrophenyl ether
KW - Oxygen quenching
U2 - 10.1016/S1010-6030(97)00325-0
DO - 10.1016/S1010-6030(97)00325-0
M3 - Article
SN - 1010-6030
VL - 113
SP - 113
EP - 117
JO - Journal of Photochemistry and Photobiology A: Chemistry
JF - Journal of Photochemistry and Photobiology A: Chemistry
IS - 2
ER -