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conformational properties and the anomeric effect study of phosphinanes | ||
Journal of Chemical Reactivity and Synthesis | ||
مقاله 4، دوره 4، شماره 2، آذر 2014، صفحه 25-32 اصل مقاله (338.61 K) | ||
نوع مقاله: Research Article | ||
نویسندگان | ||
Javad Azizian* 1؛ Mahdieh Entezari2؛ Hossein Anaraki Ardakani2؛ Shahab Zomorodbakhsh2 | ||
1Department of chemistry, Science and Reaserch branch, Islamic azad university, Tehran, Iran | ||
2Department of chemist r,y Mahshahr branch, Islamic azad university, Mahshahr, Iran | ||
چکیده | ||
Ab initio HF/6-31G* Methode was employed to calculate the bond length in 2- phosphinanes when electronegative groups was at C-2 tend axial and equatorial positions. The magnitude of the anomeric effect depends on the nature of the substituent, the effect of the substituent can be seen by comparing the bond length in 2-chloro and 2- boromo substituented phosphinanes. The effect of anomeric effect have been effected on the bond length in 2-phosphinanes. | ||
کلیدواژهها | ||
anomeric effect؛ 2- phosphinane؛ bond length؛ axial and equatorial position؛ Ab initio calculations | ||
مراجع | ||
[1] C.L, Perrin, K. B, Armstrong, M. A, Fabian: J. Am. Chem. Soc. 116, 1994, pp. 715-722. [2] Chu N, J. Ph.D Thesis, university of Ottawa, 1959. [3] R. U, Lemieux, Chu, N. J. Abstracts of papers, 133th national meeting of the American Chemical society; Washington, DC, 1958, Abstr. 31N. [4] E, Juaristi; G, Cuevas: Tetrahedron 48 (1992) 5019. [5] A. J Kirby: Springer Verlag, Berlin, (1983). [6] R. U, Lemieux. In Molecular Rearrangement; P. De Mayo, Ed: Interscience, New York, (1964), pp. 723. [7] W. A. Szarek, D. Horton, the anomeric effect: Origin and Consequences, ACS Symposium series no. 87, American Chemical Society, Washington D.C, (1979). [8] S. Wolfe, A. Rauk, L. M. Tel, I. G. Csizmaida, J. Chem. Soc. B: 136 (1971). Eisenstein, W. J. Hehre, L. salem, R. Hoffmann: J. Am. Chem. Soc: 95 (1973) 306. [9] M J. Gallager, phosphorus 31-NMR spectroscopy in Stereochemical Analysis, edited by J G. Verkade , L D. Quin, 1987, Chapter9. [10] W. E. McEwen , K. D. Berlin, [12] M. J. Frisch, G. W. Trucks, H. B. Schlegel, G. E. Scuseria, M. A. Robb, J. R. Cheeseman, V. G. Zakrzewski, J. A. Montgomery, R. E. Stratmann, J. C. Jr. Burant, S Dapprich., J. Millam, V. Barone, M. Cossi, R. Cammi, B. Mennucci C. Pomelli, C. Adamo, S. Clifford, j. Ochterski, G. A. Petersson, P. Y. Ayala, Q. Cui, K. Morokuma, D. K. Malick, A. D. Rabuck, K. Raghavachari, J. B. Foresman, j. Cioslowski, J. V. Ortiz, B. tefanovb, G. Liu, A. Liashenko, P. Piskorz, I. Komaromi, R. Gomperts, R. L. Martin, D. J. Fox, T. Keith, M. A Al-Laham. C. Y. Peng, A Nanayakkara., C. Gonzalez, M. Challacombe, P. M. W. Gill, B .Johnson, W.Chen, M. W.Wong, J. L Andres, M. Head-Gordon, E. S. Replogle, J. A. Pople, GAUSSIAN 98 (Revision A. 3) Gaussian Inc., Pittsburgh, PA, (1998). | ||
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