کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
177573 | 458989 | 2008 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Polymethine dyes derived from the boron difluoride complex of 3-acetyl-5,7-di(pyrrolidin-1-yl)-4-hydroxycoumarin
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A boron difluoride complex of 3-acetyl-5,7-di(pyrrolidin-1-yl)-4-hydroxycoumarin was synthesized and converted into polymethine dyes which included an anionic, symmetric cyanine and several merocyanine compounds. The spectral luminescent behaviour of the dyes was studied. As the electron-withdrawing ability of the 2,2-difluoro-1,3,2-dioxaborine ring was significantly reduced by the two pyrrolidino groups on the latter nucleus, the newly synthesized dyes exhibited changes in spectral parameters and much increased resistance to hydrolysis.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 79, Issue 3, December 2008, Pages 252–258
Journal: Dyes and Pigments - Volume 79, Issue 3, December 2008, Pages 252–258
نویسندگان
Andriy O. Gerasov, Mykola P. Shandura, Yuriy P. Kovtun,