کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
178015 | 459012 | 2007 | 10 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis and absorption properties of new yellow-green emitting benzo[de]isoquinoline-1,3-diones containing hindered amine and 2-hydroxyphenylbenzotriazole fragments Synthesis and absorption properties of new yellow-green emitting benzo[de]isoquinoline-1,3-diones containing hindered amine and 2-hydroxyphenylbenzotriazole fragments](/preview/png/178015.png)
Two novel benzo[de]isoquinoline-1,3-dione yellow-green emitting fluorophores, containing both 2,2,6,6-tetramethylpiperidine and 2-(2-hydroxyphenyl)-benzotriazole stabilizer fragments have been synthesized for the first time by combination of benzotriazole UV absorber and HALS units in one fluorescent molecule. Their basic photophysical properties in solution have been determined and discussed. Photodegradation of the new fluorophores has been studied and compared to other similar fluorescent dyes, not containing either UV absorber or hindered amine fragment in their molecules as well as not containing both of them. Novel fluorophores showed the best photostability in solution, which might be caused by a possible “synergism” of two stabilizer fragments combined in one molecule, differing in their action.
Journal: Dyes and Pigments - Volume 74, Issue 3, 2007, Pages 551–560