一支新环查尔酮类荧光染料的研究
Preparation and Properties of a Novel Cyclochalcone Fluorescent Dye
徐晓凤 1陈绍晋1
作者信息
- 1. 青岛科技大学化学与分子工程学院,青岛 266045
- 折叠
摘要
本文以1-茚酮和4-甲氧基苯甲醛为原料,通过缩合反应制备了一种新型环查尔酮染料A,茚酮结构为该染料的电子受体,4-甲氧基苯甲醛为给电子部分,拓展了共轭体系,使染料A具有分子内电荷转移能力.通过核磁共振谱图和高分辨质谱确定了染料A的结构,测试了染料A在常见溶剂中的紫外-可见吸收光谱和荧光发射光谱.研究结果表明其具有极性敏感特性,其固体粉末的荧光寿命远长于在溶液中的荧光寿命.经过理论计算,染料A轨道能隙值为3.16 eV.
Abstract
A new cyclic chalcone dye(A)was prepared from 1-indanone and 4-methoxybenzaldehyde by condensation reaction.In-done structure is the electron acceptor of the dye,and 4-methoxybenzaldehyde is the electron donor,which expands the conjugated system and makes dye A have intramolecular charge transfer ability.The structure of dye A was determined by NMR and high resolution mass spectrometry,and the UV-visible absorption spectrum and fluorescence emission spectrum of dye A in common solvents were test-ed.The results showed that dye A was polar sensitive,and the fluorescence lifetime of its solid powder was much longer than that in solution.The orbital energy gap of dye A is 3.16 eV(in theory).
关键词
环查尔酮/荧光量子产率/荧光寿命/ICT效应Key words
cyclochalcone/fluorescence quantum yield/fluorescence lifetime/ICT effect引用本文复制引用
出版年
2024
NETL
NSTL
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