کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5375275 | 1504295 | 2009 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Spectroscopic properties of ethyl 5-(4-dimethylaminophenyl)-3-amino-2,4-dicyanobenzoate
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
We report the synthesis and photophysical properties of ethyl 5-(4-dimethylaminophenyl)-3-amino-2,4-dicyanobenzoate (EDMAADCy) in neat solvents of different polarity. The relation between molecular conformations of molecule under study and spectral behavior has been studied using steady-state spectroscopic technique, electrochemical measurements, and quantum-chemical calculations. The fluorescence spectra of EDMAADCy possess, in medium polar solvents, two bands. Theoretical studies of the TICT phenomenon have been made in order to explain the dual emission of the molecule under study. Calculated electric dipole moments in the ground and excited states, for perpendicular and flatted conformers, have been compared with experimentally determined data. Additionally, the results of spectroscopic measurements were used to calculate, according to Marcus theory, the outer-sphere solvent reorganization energy and the internal molecular reorganization energy.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Physics - Volume 363, Issues 1â3, 18 September 2009, Pages 88-99
Journal: Chemical Physics - Volume 363, Issues 1â3, 18 September 2009, Pages 88-99
نویسندگان
Marek Józefowicz, Janina R. Heldt, Agnieszka Bajorek, Jerzy PÄ
czkowski,