Self-assembled azaphthalocyanine dimers with higher fluorescence and singlet oxygen quantum yields than the corresponding monomers

被引：43

作者：

Novakova, Veronika ^{[1
]}

Zimcik, Petr ^{[1
]}

Kopecky, Kamil ^{[1
]}

Miletin, Miroslav ^{[1
]}

Kunes, Jiri ^{[2
]}

Lang, Kamil ^{[3
]}

机构：

[1] Charles Univ Prague, Fac Pharm Hradec Kralove, Dept Pharmaceut Chem & Drug Control, Hradec Kralove 50005, Czech Republic

[2] Charles Univ Prague, Fac Pharm Hradec Kralove, Dept Inorgan & Organ Chem, Hradec Kralove 50005, Czech Republic

[3] Acad Sci Czech Republic, Inst Inorgan Chem, CZ-25068 Rez, Czech Republic

来源：

EUROPEAN JOURNAL OF ORGANIC CHEMISTRY | 2008年 / 2008卷 / 19期

关键词：

aggregation; electron transfer; fluorescence; phthalocyanines; singlet oxygen;

D O I：

10.1002/ejoc.200800317

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

In this work, we describe diethylamino-substituted metal azaphthalocyanines that form self-assembled J-dimers in noncoordinating solvents. The dimers are formed by the coordination of the free electron pair of one diethylamino group with the central metal of the adjacent molecule. The addition of pyridine leads to monomerization and considerable quenching of fluorescence and singlet oxygen formation as a result of intramolecular photoinduced singlet electron transfer (PET). PET is efficiently inhibited in dimers; therefore, dimers have higher fluorescence and singlet oxygen quantum yields than the corresponding monomers. ((C) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2008).

引用

页码：3260 / 3263

页数：4

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