Singlet Oxygen Chemistry in Water:  A Porous Vycor GlassSupported Photosensitizer

David Aebisher; Nikolay S. Azar; Matibur Zamadar; Naveen Gandra; Harry D. Gafney; Roumei Gao; Alexander Greer

Singlet Oxygen Chemistry in Water: A Porous Vycor GlassSupported Photosensitizer

David Aebisher, Nikolay S. Azar, Matibur Zamadar, Naveen Gandra, Harry D. Gafney, Roumei Gao, Alexander Greer

Chemistry and Biochemistry

Research output: Contribution to journal › Article

Abstract

Singlet molecular oxygen [1O2 (1Δg)] is generated cleanly in aqueous solution upon irradiation of a heterogeneous complex, meso-tetra(N-methyl-4-pyridyl)porphine (1) adsorbed onto porous Vycor glass (PVG). The cationic photosensitizer 1 tightly binds onto PVG and gives a stable material, which does not dissociate 1 into the surrounding aqueous phase. The production of 1O2 was measured by monitoring the time-resolved 1O2 (1Δg) phosphorescence at 1270 nm. Indirect analysis of 1O2 generation was also carried out with the photooxidation oftrans-2-methyl-2-pentenoate anion, which afforded the corresponding hydroperoxide. Sensitizer-1-impregnated PVG gives rise to a new singlet oxygen generator but more importantly provides a heterogeneous system for use in water.

Original language	Undefined/Unknown
Journal	Faculty Publications
State	Published - Jan 1 2008

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Singlet Oxygen Chemistry in Water:? A Porous Vycor GlassSupported

http://scholarworks.sfasu.edu/chemistry_facultypubs/29

Cite this

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title = "Singlet Oxygen Chemistry in Water: A Porous Vycor GlassSupported Photosensitizer",

abstract = "Singlet molecular oxygen [1O2 (1Δg)] is generated cleanly in aqueous solution upon irradiation of a heterogeneous complex, meso-tetra(N-methyl-4-pyridyl)porphine (1) adsorbed onto porous Vycor glass (PVG). The cationic photosensitizer 1 tightly binds onto PVG and gives a stable material, which does not dissociate 1 into the surrounding aqueous phase. The production of 1O2 was measured by monitoring the time-resolved 1O2 (1Δg) phosphorescence at 1270 nm. Indirect analysis of 1O2 generation was also carried out with the photooxidation oftrans-2-methyl-2-pentenoate anion, which afforded the corresponding hydroperoxide. Sensitizer-1-impregnated PVG gives rise to a new singlet oxygen generator but more importantly provides a heterogeneous system for use in water.",

author = "David Aebisher and Azar, {Nikolay S.} and Matibur Zamadar and Naveen Gandra and Gafney, {Harry D.} and Roumei Gao and Alexander Greer",

year = "2008",

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TY - JOUR

T1 - Singlet Oxygen Chemistry in Water: A Porous Vycor GlassSupported Photosensitizer

AU - Aebisher, David

AU - Azar, Nikolay S.

AU - Zamadar, Matibur

AU - Gandra, Naveen

AU - Gafney, Harry D.

AU - Gao, Roumei

AU - Greer, Alexander

PY - 2008/1/1

Y1 - 2008/1/1

N2 - Singlet molecular oxygen [1O2 (1Δg)] is generated cleanly in aqueous solution upon irradiation of a heterogeneous complex, meso-tetra(N-methyl-4-pyridyl)porphine (1) adsorbed onto porous Vycor glass (PVG). The cationic photosensitizer 1 tightly binds onto PVG and gives a stable material, which does not dissociate 1 into the surrounding aqueous phase. The production of 1O2 was measured by monitoring the time-resolved 1O2 (1Δg) phosphorescence at 1270 nm. Indirect analysis of 1O2 generation was also carried out with the photooxidation oftrans-2-methyl-2-pentenoate anion, which afforded the corresponding hydroperoxide. Sensitizer-1-impregnated PVG gives rise to a new singlet oxygen generator but more importantly provides a heterogeneous system for use in water.

AB - Singlet molecular oxygen [1O2 (1Δg)] is generated cleanly in aqueous solution upon irradiation of a heterogeneous complex, meso-tetra(N-methyl-4-pyridyl)porphine (1) adsorbed onto porous Vycor glass (PVG). The cationic photosensitizer 1 tightly binds onto PVG and gives a stable material, which does not dissociate 1 into the surrounding aqueous phase. The production of 1O2 was measured by monitoring the time-resolved 1O2 (1Δg) phosphorescence at 1270 nm. Indirect analysis of 1O2 generation was also carried out with the photooxidation oftrans-2-methyl-2-pentenoate anion, which afforded the corresponding hydroperoxide. Sensitizer-1-impregnated PVG gives rise to a new singlet oxygen generator but more importantly provides a heterogeneous system for use in water.

M3 - Article

JO - Faculty Publications

JF - Faculty Publications

ER -