For the purpose of target syntheses of new photochromic compounds, a relationship between the structure and properties of a series of the known thermally irreversible photochromes was analyzed using the spectral kinetic data obtained by the authors.
Modulation of a fluorescence switch based on a photochromic diarylethene and a rhodamine B dye
作者:Shouzhi Pu、Gang Liu、Renjie Wang、Bing Chen
DOI:10.1016/j.dyepig.2013.02.016
日期:2013.8
A new fluorescence switch based on a photochromic diarylethene and a rhodamine B dye was designed and constructed successfully. With carefully selected components, the absorption band of the ring-closed photochromic diarylethene well overlapped with the emission band of the rhodamine B. The fluorescence emission intensity of rhodamine B is easily modulated with the photoisomerization of diarylethene
Toward multi-addressable molecular systems: Efficient synthesis and photochromic performance of unsymmetrical bisthienylethenes
作者:Guillaume Sevez、Jean-Luc Pozzo
DOI:10.1016/j.dyepig.2010.03.018
日期:2011.6
compared to access to unsymmetrical 1,2-bisthienylperfluorocyclopentenes having one electro-withdrawing formyl group. The strategy based on key monosusbtituted cyclopentenes appears to be the most reliable and versatile synthetic approach. Applying this controlled sequential synthesis to appropriate thiophenic buildingblocks leads to the preparation of π-conjugated extended push–pull system where photochromic
A new photochromicdiarylethene with a triazole-bridged methylquinoline group has been synthesized by click chemistry reaction. The diarylethene exhibited typical photochromism and fluorescentswitching properties by photoirradiation. Especially, its fluorescence and recognition of different metal ions could be effectively modulated by controlling the volume ratio of acetonitrile and water in acetonitrile/water
通过点击化学反应合成了具有三唑桥连的甲基喹啉基团的新型光致变色二芳基乙烯。通过光照射,二芳基乙烯表现出典型的光致变色和荧光转换特性。特别是,通过控制乙腈/水二元溶剂体系中乙腈和水的体积比,可以有效地调节其荧光和对不同金属离子的识别。在乙腈中,发现二芳基乙烯对Zn 2+和Cd 2+具有高度选择性。但是,其可以选择性地识别的Cr 3+,铝3+和Fe 3+与来自暗(显著荧光变化到明亮的蓝色在乙腈和水的混合物溶剂v/ v = 7/3)。此外,通过使用432 nm的荧光强度作为输出以及光和化学的组合刺激作为输入,使用单分子平台构建逻辑电路。