NMR Studies of Equilibrium Quotient of the Benzonitrile with Xylene Isomers and Ethylbenzene

Document Type : Research Article

Authors

1 Chemistry Department, College of Sciences, Bushehr University, Bushehr, I.R. Iran

2 Chemistry Department, College of Sciences, Shiraz University, Shiraz 71454, I.R. Iran

Abstract

The charge transfer (CT) complex formation of benzonitrile as acceptor with the aromatic donors o-, m-, p-xylene and ethylbenzene in CCl4 solutions is investigated by chemical shift measurements relative to an external reference. The equilibrium parameters, Q and DAD of their weak molecular complexes, as found numerically modified Cresswel- Allred (C-A) method, is compared with graphically Scatchard-Foster-Fyfe (Sc-F-F) method.

Keywords

Main Subjects


1] Chudek, J.A., Foster, R., Mackay, R.L., Page, F.M., Twiselton, D.R., J.Chem.Soc. Faraday trans.1, 84(4),1145 (1988) ,also see ref.1 cited therein.
[2] Andrews, L. J., Keefer, R. M., “Molecular Complexes in Organic Chemistry” Holden Day, Inc.,pp.1-13 (1964).
[3] Jackel,H., Stamm,H., J.Chem.Phys., 94(9), 3495 (1990).
[4] Stamm,H., Jackel,H., J.Am.Chem.Soc.,111, 6544 (1989).
[5] Jackel,H., Stamm,H., Chem.Z., 113, 81 (1989).
[6] Chudek, J .A., Foster,R., Mackay,R.L., J. Chem.Soc.Faraday trans.1, 84 (5),1737 (1988).
[7] Lane, E.H., Christian, S.D., Childs, J.D., J.Am.Chem.Soc., 96, 38 (1974).
[8] Jackel, H., Stamm,H., Arch .Pharm. (weinheim), 321, 213 (1988).
[9] Jackel, H., Stamm, H., Z. Natureforsch, ser.b, 41b, 1461 (1986).
[10] Lamberty, W., Stamm, H., Stafe, J., J.Chem. Phys., 87, 1589 (1983).
[11] Stamm, H., Lamberty, W., Tetrahedron, 37, 565 (1981).
[12] Stamm, H., Stafe, J., Z.Natureforsch, ser.b, 36b, 1618 (1981).
[13] Stamm, H., Lamberty, W., J.Am.Chem. Soc., 102, 1529 (1980).
[14] Fried, V., Asadi, M., Arshadi, M. R., Indian Journal of Chem., 15A(8), 453 (1977).
[15] Donesi, A., Paolillo, L., Temussi, P. A., J.Phys. Chem., 80(3), 279 (1976).
[16] Polle, E. G., Russ.Chem.Rev., 43(8), 631 (1974).
[17] Hanna, M. W., Rose, D. G., J.Am.Chem. Soc., 94, 2601 (1972).
[18] Stamm, H., Lamberty, W.,Tetrahedron, 32, 2045 (1976).
[19] Foster, R., “Organic Charg-Transfer ComplexesAcademic Press, New York, (1966), Chapters 5 and 6 and references cited therein.
[20] Foster,R., “Molecular Complexes”, Elec Science, London, Vol.3, Chapter 3, (1974).
[21] Kuntz, I. D., Gasparro, F. P., Johnson, M. D., Taylor, R. P., J. Am. Chem. Soc., 90, 4778 (1968).
[22] Trotter, P. J., Hanna, M. W., J. Am. Chem. Soc., 88, 3724 (1966).
[23] Slejko, F. L., Drago, R. S., J. Am. Chem. Soc., 94, 6546 (1972).
[24] Hanna, M. W., Rose, D. G., J.Am.Chem.Soc., 94, 2601 (1972).
[25] Person, W. B., J.Am.Chem.Soc.,87, 167 (1965).
[26] Deranleau, D. A., J. Am. Chem. Soc., 91, 4044 (1969).
[27] Walsh, S., Diamond D., Talanta, 42 (4), 561(1995).
[28] Moody, H. W., J.Chem.Educ., 59, 290 (1982).
[29] Caceci, M. S., Anal.Chem.,61, 2124 (1989).
[30] Harris, D. C., J.Chem.Educ., 7(1), 119 (1998).
[31] Creswell, C. J., Allred, A. L., J. Phys. Chem., 66, 1469 (1962).