Singlet oxygen chemistry in water: A porous Vycor glass-supported photosensitizer

被引：32

作者：

Aebisher, David ^{[2
,3
]}

Azar, Nikolay S. ^{[2
,3
]}

Zamadar, Matibur ^{[2
,3
]}

Gandra, Naveen ^{[1
]}

Gafney, Harry D. ^{[4
,5
]}

Gao, Ruomei ^{[1
]}

Greer, Alexander ^{[2
,3
]}

机构：

[1] Jackson State Univ, Dept Chem, Jackson, MS 39217 USA

[2] CUNY Brooklyn Coll, Dept Chem, Brooklyn, NY 11210 USA

[3] CUNY Brooklyn Coll, Grad Ctr, Brooklyn, NY 11210 USA

[4] CUNY Queens Coll, Dept Chem & Biochem, Flushing, NY 11367 USA

[5] CUNY Queens Coll, Grad Ctr, Flushing, NY 11367 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2008年 / 112卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1021/jp709829z

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Singlet molecular oxygen [O-1(2) ((1)Delta(g))] 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 O-1(2) was measured by monitoring the time-resolved O-1(2) ((1)Delta(g)) phosphorescence at 1270 nm. Indirect analysis of O-1(2) generation was also carried out with the photooxidation of traps-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.

引用

页码：1913 / 1917

页数：5

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