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Spectroscopic Studies on 4-(p-Dimethylaminobenzylidene) and 4-(p- Dimethylaminophenylimino) Derivatives of 3-Methyl-1-phenyl-2-pyrazolin-5-one

Anwar S. EI-Shahawy ; Chemistry Department, Faculty of Sciences, Assiut University, Assiut, P. O. Box 107 Egypt
Maher M. Girgis ; Chemistry Department, Faculty of Sciences, Assiut University, Assiut, P. O. Box 107 Egypt
Zarit H. Khalil ; Chemistry Department, Faculty of Sciences, Assiut University, Assiut, P. O. Box 107 Egypt

Puni tekst: engleski, pdf (4 MB) str. 613-625 preuzimanja: 77* citiraj
APA 6th Edition
EI-Shahawy, A.S., Girgis, M.M. i Khalil, Z.H. (1987). Spectroscopic Studies on 4-(p-Dimethylaminobenzylidene) and 4-(p- Dimethylaminophenylimino) Derivatives of 3-Methyl-1-phenyl-2-pyrazolin-5-one. Croatica Chemica Acta, 60 (4), 613-625. Preuzeto s https://hrcak.srce.hr/176388
MLA 8th Edition
EI-Shahawy, Anwar S., et al. "Spectroscopic Studies on 4-(p-Dimethylaminobenzylidene) and 4-(p- Dimethylaminophenylimino) Derivatives of 3-Methyl-1-phenyl-2-pyrazolin-5-one." Croatica Chemica Acta, vol. 60, br. 4, 1987, str. 613-625. https://hrcak.srce.hr/176388. Citirano 25.02.2021.
Chicago 17th Edition
EI-Shahawy, Anwar S., Maher M. Girgis i Zarit H. Khalil. "Spectroscopic Studies on 4-(p-Dimethylaminobenzylidene) and 4-(p- Dimethylaminophenylimino) Derivatives of 3-Methyl-1-phenyl-2-pyrazolin-5-one." Croatica Chemica Acta 60, br. 4 (1987): 613-625. https://hrcak.srce.hr/176388
Harvard
EI-Shahawy, A.S., Girgis, M.M., i Khalil, Z.H. (1987). 'Spectroscopic Studies on 4-(p-Dimethylaminobenzylidene) and 4-(p- Dimethylaminophenylimino) Derivatives of 3-Methyl-1-phenyl-2-pyrazolin-5-one', Croatica Chemica Acta, 60(4), str. 613-625. Preuzeto s: https://hrcak.srce.hr/176388 (Datum pristupa: 25.02.2021.)
Vancouver
EI-Shahawy AS, Girgis MM, Khalil ZH. Spectroscopic Studies on 4-(p-Dimethylaminobenzylidene) and 4-(p- Dimethylaminophenylimino) Derivatives of 3-Methyl-1-phenyl-2-pyrazolin-5-one. Croatica Chemica Acta [Internet]. 1987 [pristupljeno 25.02.2021.];60(4):613-625. Dostupno na: https://hrcak.srce.hr/176388
IEEE
A.S. EI-Shahawy, M.M. Girgis i Z.H. Khalil, "Spectroscopic Studies on 4-(p-Dimethylaminobenzylidene) and 4-(p- Dimethylaminophenylimino) Derivatives of 3-Methyl-1-phenyl-2-pyrazolin-5-one", Croatica Chemica Acta, vol.60, br. 4, str. 613-625, 1987. [Online]. Dostupno na: https://hrcak.srce.hr/176388. [Citirano: 25.02.2021.]

Sažetak
The electronic absorption spectra of 4-(p-dimethylaminobenzylidene)
and 4-(p-dimethylaminophenylimino) derivatives of 3-methyl-1-phenyl-2-pyrazolin-5-one were studied in polar and nonpolar solvents. HMO and PPP calculations were done to investigate the first n_n* transition and the effect of replacing the backbone carbon atom C-13 in 4-p dimethylaminobenzylidene-3-methyl-I-phenyl-2-pyrazolin-5-one by a nitrogen atom. The electron densities of these compounds were calculated by the SCF-method.

Hrčak ID: 176388

URI
https://hrcak.srce.hr/176388

Posjeta: 152 *