作者:Chunchang Zhao、Peng Feng、Jian Cao、Yulin Zhang、Xuzhe Wang、Yang Yang、Yanfen Zhang、Jinxin Zhang
DOI:10.1039/c1ob06200j
日期:——
A 6-hydroxyindole-based BODIPY, named BODIPY–OH, with distinct spectroscopic characteristics is reported. Through a systematic study of the spectroscopic characteristics of BODIPY–OH and BODIPY–O− in various solvents containing an organic base, we found that the light-color of the fluorophore can be tuned over a wide range by changing the polarity of solvent/base combinations. The absorption color of the solution can be tuned over a range of 100 nm and the emission color within a wide range from 571 to 681 nm by simply converting the phenol form of BODIPY–OH to the phenolate form. Fluorescence of BODIPY–O− with high quantum yield shows relatively large Stokes shift in solvent/base combinations, which are ascribed to the excited state deprotonation from (BODIPY–OH)* to (BODIPY–O−)*, followed by emission from the ion form.
报道了一种基于6-羟基吲哚的BODIPY,名为BODIPY–OH,具有独特的光谱特征。通过系统研究BODIPY–OH和BODIPY–O−在各种含有有机碱的溶剂中的光谱特性,我们发现通过改变溶剂/碱的组合的极性,可以在较大范围内调节荧光染料的光颜色。溶液的吸收颜色可以在100 nm的范围内调节,而发射颜色则可以在571到681 nm的较大范围内调节,这仅需将BODIPY–OH的酚型转化为酚酸盐型。BODIPY–O−具有较高的量子产率,其荧光在溶剂/碱组合中显示出相对较大的斯托克斯位移,这归因于从(BODIPY–OH)*到(BODIPY–O−)*的激发态脱质子化,随后是从离子形式的发射。