On the effect of 1,4-diazabicyclo[2.2.2]octane on the singlet-oxygen dimol emission:: Photosensitized generation of (1O2)2

被引：11

作者：

Kazakov, Dmitri V.

Schmidt, Reinhard

机构：

[1] RAS, Ifa Sci Ctr, Inst Organ Chem, Ufa 450054, Russia

[2] Goethe Univ Frankfurt, Inst Phys & Theoret Chem, D-60438 Frankfurt, Germany

来源：

JOURNAL OF PHYSICAL CHEMISTRY A | 2007年 / 111卷 / 20期

关键词：

D O I：

10.1021/jp070630o

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：

Time-resolved singlet-oxygen dimol luminescence has been recorded upon laser-pulsed photosensitization of singlet oxygen by 2-acetonaphthone or 1-H-phenalen-1-one in perfluorobenzene, perdeuterobenzene, and perdeuteroacetonitrile. It is shown that 1,4-diazabicyclo[2.2.2]octane (DABCO) does not enhance radiative properties of the dimol species generated by the photosensitization. Instead, DABCO strongly reduces the singlet-oxygen dimol luminescence. Rate constants for the quenching of the dimol luminescence by DABCO have been determined for the three solvents used.

引用

页码：4274 / 4279

页数：6

共 73 条

[1] pi-Facial diastereoselectivity in the [4+2] cycloaddition of singlet oxygen as a mechanistic probe [J].