Synthesis and photophysical properties of the 4-(biphenyl-4-yl)-2,6-bis(4-iodophenyl)pyrylium ion

被引:9
作者
Alvaro, Mercedes
Aprile, Carmela
Carbonell, Esther
Ferrer, Belén
García, Hermenegildo
机构
[1] Univ Politecn Valencia, CSIC UPV, Inst Tecnol Quim, Valencia 46022, Spain
[2] Univ Politecn Valencia, CSIC UPV, Dept Chem, Valencia 46022, Spain
关键词
pyrylium; thiapyrylium; photosensitizer; PET (photoinduced electron transfer);
D O I
10.1002/ejoc.200500997
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
A triarylpyrylium ion containing iodo and biphenyl substituents has been synthesized and its photophysical properties measured. Compared to its parent triphenylpyrylium ion, the photophysical data recorded for 4-(biphenyl-4-yl)-2,6bis(4-iodophenyl)pyrylium are significantly influenced by substitution. Remarkable decreases in fluorescence and phosphorescence quantum yields, a shorter singlet lifetime, and lower energies of the singlet and triplet excited states are observed. ((c) Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2006)
引用
收藏
页码:2644 / 2648
页数:5
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