کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
178367 459039 2007 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis of new porphyrins with dicyanopyrazine moiety and their optical properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Synthesis of new porphyrins with dicyanopyrazine moiety and their optical properties
چکیده انگلیسی

5,10,15,20-Tetra[5-{2-(4-alkoxyphenyl)-ethenyl}-6-{2-phenyl-ethenyl}-2,3-dicyano-pyrazino]-porphyrin (5) was prepared by the condensation reaction of pyrrole and a bis-styryl derivative (4) containing 2,3-dicyanopyrazine. The existence of a strong intramolecular charge-transfer chromophoric system was confirmed for dyes 5, and its large Stokes shift of over 200 nm resulted in the emission of red fluorescence. The chromophoric systems of these dyes were studied from the viewpoint of the protonation and deprotonation effects on their absorption and fluorescence spectra in solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 72, Issue 3, 2007, Pages 315–321
نویسندگان
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