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Saghi, M., Arastehnodeh, A. (2018). Optimization of Enaminone structures and investigation of substituent effects on molecular stability using HF and DFT soft computational methods. International Journal of New Chemistry, 5(2), 476-486.
Majid Saghi; Ali Arastehnodeh. "Optimization of Enaminone structures and investigation of substituent effects on molecular stability using HF and DFT soft computational methods". International Journal of New Chemistry, 5, 2, 2018, 476-486.
Saghi, M., Arastehnodeh, A. (2018). 'Optimization of Enaminone structures and investigation of substituent effects on molecular stability using HF and DFT soft computational methods', International Journal of New Chemistry, 5(2), pp. 476-486.
Saghi, M., Arastehnodeh, A. Optimization of Enaminone structures and investigation of substituent effects on molecular stability using HF and DFT soft computational methods. International Journal of New Chemistry, 2018; 5(2): 476-486.

Optimization of Enaminone structures and investigation of substituent effects on molecular stability using HF and DFT soft computational methods

Article 4, Volume 5, Issue 2, Spring 2018, Page 476-486  XML PDF (744.7 K)
Document Type: Research Paper
Authors
Majid Saghi email orcid 1; Ali Arastehnodeh2
1Young Researchers and Elite Club, Arak Branch, Islamic Azad University, Arak, Iran.
2Department of Chemical engineering, Quchan Branch, Islamic Azad University, Quchan, Iran.
Abstract
Enaminones are chemical compounds consisting of an amino group (−N=) linked through a C=C to a C=O group. In this research, four various enaminone structures were theoretically optimized. These enaminone structures have been studied for substituent effect on hydrogen bond, method and basic set effects on the geometrical parameters, vibrational frequencies and etc. Drawing molecular structures and computer calculations were performed with Gauss view (5.0) and Gaussian (09) softwares, respectively. The utilized methods in the paper were the HF and DFT and of DFT methods of basic functions B3LYP and B3P86. Also Basis sets of 6-311G, 6-311G*, 6-311G**, 6-311+G** and 6-311++G** have been utilized. Generally the results of computer calculations and comparing them with experimental equivalents indicate that theoretical procedures could well be helpful and effective in enaminone studies and offer reasonable and well results. Enaminone structure was studied for tautomerism and it was revealed that Ketamine form is more stable than Enolimine form.
Keywords
Enaminone; HF; DFT; Geometry; Hydrogen bonding
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