Title of article
Tuning the photoinduced electron transfer in near-infrared heptamethine cyanine dyes
Author/Authors
Song، نويسنده , , Fengling and Peng، نويسنده , , Xiaojun and Lu، نويسنده , , Erhu and Wang، نويسنده , , Yanan and Zhou، نويسنده , , Wei and Fan، نويسنده , , Jiangli، نويسنده ,
Issue Information
هفته نامه با شماره پیاپی سال 2005
Pages
4
From page
4817
To page
4820
Abstract
An efficient photoinduced electron transfer (PET) system in near-infrared region was described. The PET in heptamethine cyanine dyes was tuned by changing the electron-donating ability of the substituent at the central position of the polymehine chain. 4-Aminophenylthio-substitution led to an efficient PET and the lowest fluorescence quantum yield. The acetylation, protonation or transition metal cation coordination of the amino group could recover fluorescence greatly via suppressing the PET.
Keywords
Heptamethine cyanine dyes , Fluorescence sensors , near-infrared , photoinduced electron transfer
Journal title
Tetrahedron Letters
Serial Year
2005
Journal title
Tetrahedron Letters
Record number
1846146
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