Tuning of the Electro-Optical Properties of Tetraphenylcyclopentadienone via Substitution of Oxygen with Sterically-Hindered Electron Withdrawing Groups
| العنوان: | Tuning of the Electro-Optical Properties of Tetraphenylcyclopentadienone via Substitution of Oxygen with Sterically-Hindered Electron Withdrawing Groups |
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| المؤلفون: | Yit Lung Khung, Carmine Coluccini, Yoke Mooi Ng, Sheng Lun Liao, Atsushi Yabushita, P. T. Anusha, Hsin Yi Tiffany Chen, Chih-Wei Luo, Ying Kuan Ko |
| المصدر: | Scientific Reports Scientific Reports, Vol 9, Iss 1, Pp 1-14 (2019) |
| بيانات النشر: | Nature Publishing Group UK, 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 0301 basic medicine, Steric effects, Nitrile, Photochemistry, lcsh:Medicine, Organic chemistry, Context (language use), Article, 03 medical and health sciences, chemistry.chemical_compound, 0302 clinical medicine, Tetraphenylcyclopentadienone, Molecule, lcsh:Science, Multidisciplinary, lcsh:R, Coordination chemistry, 030104 developmental biology, chemistry, Intramolecular force, Polar effect, lcsh:Q, Density functional theory, Supramolecular chemistry, Analytical chemistry, 030217 neurology & neurosurgery |
| الوصف: | In this report, the substitution of the oxygen group (=O) of Tetraphenylcyclopentadienone with =CR2 group (R = methyl ester or nitrile) was found to have tuned the electro-optical properties of the molecule. Although both groups are electrons withdrawing in nature, their absorption from UV-vis spectra analysis was observed to have been blue-shifted by methyl ester substitution and red-shifted by nitrile substitution. Interestingly, these substitutions helped to enhance the overall intensity of emission, especially in the context of methyl ester substitution whereby the emission was significantly boosted at higher concentrations due to hypothesized restrictions of intramolecular motions. These observations were explained through detailed descriptions of the electron withdrawing capability and steric properties of the substituents on the basis of density functional theory calculations. |
| اللغة: | English |
| تدمد: | 2045-2322 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::321a38c730e04ac36f14c4e07da312d5 http://europepmc.org/articles/PMC6726659 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....321a38c730e04ac36f14c4e07da312d5 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 20452322 |
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