کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1237364 | 968890 | 2009 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
N-hetero atomic effect on the photophysics of 2,2â²-dipyridylketone
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: N-hetero atomic effect on the photophysics of 2,2â²-dipyridylketone N-hetero atomic effect on the photophysics of 2,2â²-dipyridylketone](/preview/png/1237364.png)
چکیده انگلیسی
Emission characteristics of 2,2â²-dipyridylketone (DPK) have been studied in the rigid glass matrices of ethanol (EtOH) and methyl cyclohexane (MCH) at 77Â K. As in the case of the aromatic analogue benzophenone (BOP), DPK is found to exhibit only phosphorescence emission. Although both BOP and DPK have the lowest triplet states chiefly of nÏ* nature, the presence of other triplet states in the neighbourhood of the lowest triplet one is found to play some significant roles in determining the photophysical properties of DPK, specially in the non-polar solvent (MCH). All the photophysical properties including the polarization characteristics have been explored in both the molecules. Experimental observations are corroborated with necessary quantum chemical calculations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 74, Issue 5, December 2009, Pages 1165-1172
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 74, Issue 5, December 2009, Pages 1165-1172
نویسندگان
Tumpa Mishra, Sudeshna Bhattacharya, Manash Ghosh, Pinaky Sett, Susil Kumar Sarkar, Tapan Ganguly, Prabal Kumar Mallick,