کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
178222 | 459026 | 2006 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Electronic properties of polymethine systems. 12. Solitonic nature of charge distribution in the excited state
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
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چکیده انگلیسی
The electron density distribution in the excited state as compared with the ground state of the ionic polymethine dyes containing both the simplest terminal groups and carbo- and heterocyclic residues are considered. It is found that the charge waves in the excited state are of solitonic nature, however, excitation causes the considerable change in their shape. The dimension of the soliton becomes significantly shorter in excited state than in the ground state; the wave shape and width are highly sensitive to donor strength of terminal groups. In the asymmetrical form, the solitonic wave is shifted to the polymethine chain center.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Dyes and Pigments - Volume 71, Issue 1, 2006, Pages 19–27
Journal: Dyes and Pigments - Volume 71, Issue 1, 2006, Pages 19–27
نویسندگان
O.D. Kachkovsky, D.M. Shut',