Indexed by:期刊论文
Date of Publication:2012-06-15
Journal:中国科技论文
Issue:6
Page Number:469-472
ISSN No.:2095-2783
Key Words:罗丹明;荧光染料;酸性环境;吗啉
Abstract:设计并合成了2个基于罗丹明的荧光染料A2和A3,不同含氮基团的引入使其pKa值分别为5.4和6.0,即A2和A3分别在2个不同的pH范围内具有很强的荧光发射.该性质与普通的罗丹明衍生物的不同,使得化合物A2和A3更适合于用在pH值在4~6之间的酸性环境体系. A2和A3均通过13C-NMR、1H-NMR核磁和高分辨质谱的鉴定.氢离子滴定实验结合光谱测试表明,两分子在水中最大发射波长分别为538 nm和564 nm,且随pH值得增加两分子最大吸收均有一定的红移(A2红移7 nm,A3红移26 nm).另外,两分子在酸性水溶液中最大量子产率分别达到0.88(A2 pH 3.9)和0.67(A3 pH 4.4)
Professor
Supervisor of Doctorate Candidates
Supervisor of Master's Candidates
Gender:Male
Alma Mater:Dalian University of Technology
Degree:Doctoral Degree
School/Department:State Key Laboratroy of Fine Chemicals
Discipline:Applied Chemistry. Fine Chemicals. Biochemical Engineering
Business Address:West Campus E-204
Contact Information:xiaoyi@dlut.edu.cn 0411-84986251
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