کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
177747 458999 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Substituted xanthylocyanines. III. Dyes containing non-symmetrically substituted xanthylium core
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Substituted xanthylocyanines. III. Dyes containing non-symmetrically substituted xanthylium core
چکیده انگلیسی

A series of symmetrically and non-symmetrically substituted dyes were prepared from 9-methylxanthylium salts. The absorbance spectra of these compounds contain two bands – intense longwave and less intense shortwave. The nature of electronic transitions in polymethine dyes and dependence of the position and intensity of absorbance bands on the structure of end nucleus are discussed. The electron-donating properties of the synthesized xanthylium cores were studied.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 72, Issue 2, 2007, Pages 199–207
نویسندگان
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