کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9757109 1495293 2005 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electronic absorption spectra of symmetric cationic dye in constant electric field
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Electronic absorption spectra of symmetric cationic dye in constant electric field
چکیده انگلیسی
The electronic absorption coefficient of polymer films doped with symmetric cationic polymethine dye external electric field constant changes is researched. This effect is characterised by the short-wavelength band edge intensity increases and it decreases on the long-wavelength edge. The dye cation charge distribution in the model electric field 108 V m−1 of point charges was calculated by the method AM1. On the basis of the quantum chemical calculations the spectral regularities in electric field is interpreted by the cation electronic charge changes. The theoretical model, based on the eigenfrequencies value changes of the charged anharmonic oscillators under operation field is offered for the observed effects description. The experimental spectra well correlate with the theoretically calculated.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 61, Issues 1–2, 1 January 2005, Pages 213-218
نویسندگان
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