کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5142099 | 1496026 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Solvent effect and photo-physical properties of 2,3-diphenylcyclopropenone
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The photo-physical properties of the strained ring 2,3-diphenylcyclopropenone (DPCP) containing donor-acceptor moieties in polar and non-polar solvent are reported. The transition dipole moment (Îμ), transition polarizability (Îα), oscillator strength (fij) and molar absorptivity (ε(ν¯)) of its different transition bands were determined using solvatochromic shifts theory. The determined Îα is positive, signifying the strong activity of this compound and its excited states being more polar than ground states. Its Îμ follows the trend observed for the fij and Îα. This conforms to the expectations that the more allowed a transition, the higher the probability that the transition dipole moments will be greater than zero. The transition dipole moment shows gradation of values, being smallest for the weak and forbidden transitions but increases considerably for the fully allowed transitions. The solvents perturbation allows the assignment of the transitions in this compound to be both nâÏâ and ÏâÏâ transitions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Arabian Journal of Chemistry - Volume 10, Supplement 1, February 2017, Pages S134-S140
Journal: Arabian Journal of Chemistry - Volume 10, Supplement 1, February 2017, Pages S134-S140
نویسندگان
M.D. Adeoye, N.O. Obi-Egbedi, I. Iweibo,