Efficiency of singlet oxygen generation from the triplet states of nitrophenyl ethers

Miquel Mir; Lisinka M.G. Jansen; Francis Wilkinson; Jose L. Bourdelande; Jordi Marquet

doi:10.1016/S1010-6030(97)00325-0

Efficiency of singlet oxygen generation from the triplet states of nitrophenyl ethers

Miquel Mir, Lisinka M.G. Jansen, Francis Wilkinson, Jose L. Bourdelande, Jordi Marquet

Department of Chemistry

Research output: Contribution to journal › Article › Research › peer-review

17 Citations (Scopus)

Abstract

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.

Original language	English
Pages (from-to)	113-117
Journal	Journal of Photochemistry and Photobiology A: Chemistry
Volume	113
Issue number	2
DOIs	https://doi.org/10.1016/S1010-6030(97)00325-0
Publication status	Published - 28 Feb 1998

Keywords

Acetonitrile solution
Nitrophenyl ether
Oxygen quenching

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10.1016/S1010-6030(97)00325-0

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title = "Efficiency of singlet oxygen generation from the triplet states of nitrophenyl ethers",

abstract = "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. {\textcopyright} 1998 Elsevier Science S.A.",

keywords = "Acetonitrile solution, Nitrophenyl ether, Oxygen quenching",

author = "Miquel Mir and Jansen, {Lisinka M.G.} and Francis Wilkinson and Bourdelande, {Jose L.} and Jordi Marquet",

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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

VL - 113

SP - 113

EP - 117

IS - 2

ER -

Efficiency of singlet oxygen generation from the triplet states of nitrophenyl ethers

Abstract

Keywords

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