Basicities of primary arylamines and calculated amine nitrogen electronic charges
PDF (English)

Palavras-chave

Arylamines
Basicity
N Mülliken charge
AMU

Como Citar

Leite, S. R. de A. (1998). Basicities of primary arylamines and calculated amine nitrogen electronic charges. Eclética Química, 23(1), 71–80. https://doi.org/10.26850/1678-4618eqj.v23.1.1998.p71-80

Resumo

Mülliken charges on nitrogen atoms were calculated for several arylamines, utilizing the AM1 Quantum Chemistry method, relating their values to experimental amine pKa . Direct relation between pKa and nitrogen charges was found. The amines energies of protonation, calculated by the same method, also correlate directly with these charges.

https://doi.org/10.26850/1678-4618eqj.v23.1.1998.p71-80
PDF (English)

Referências

ALLINGER, N. L. Conformational analysis. 130. MM2. A hydrocarbon force field utilizing V1 and V2 torsional terms. J. Am. Chem. Soc., v.99, p.8127, 1977.

ALLINGER, N. L., YUH, Y. H. Quantum Chemistry Program Exchange; Bloomington, IN ; Program # 395 .

BAIRD, N. C., DEWAR, M. J. S. Ground states of s-bonded molecules. IV. The MINDO method and its application to hydrocarbons. J. Chem. Phys., v.50, p.1262, 1969.

BURKERT, U., ALLINGER, N. L. Molecular Mechanics, ACS Monograph 177, 1982

COLLINS, J. B., SCHLEYER, P. V., BINKLEY, J. S., POPLE, J. A. Self-consistent molecular orbital methods. XVII. Geometries and binding energies of second-row molecules. A comparison of three basis sets. J. Chem. Phys., v.64, p.5142, 1976.

DEWAR, M. J. S., McKEE, M. L., Ground states of molecules. 41. MNDO results for molecules containing boron. J. Am. Chem. Soc., v.99, p. 5231, 1977.

DEWAR, M. J. S., ZOEBISCH, E. G. ; HEALY, E. F., STEWART, J. J. P. AM1: a new general purpose quantum mechanical molecular model. J. Am. Chem. Soc., v.107, p. 3902, 1985.

ELLIOTT, J. J., MASON, S. F. The heats and entropies of ionisation of some aromatic and N-heteroaromatic amines. J. Chem. Soc., p. 2352 , 1959.

HEHRE, W. J., STEWART, R. F., POPLE, J. A. Self-consistent molecular-orbital methods. I. Use of gaussian expansions of Slater-type atomic orbitals. J. Chem. Phys., v.51, p.2657, 1969.

HOFFMANN, R. An extended Hückel theory. I. Hydrocarbons. J. Chem. Phys., v. 39, p.1397, 1963.

JORGENSEN, W.L., CHANDRASEKHAR, J., MADURA, J.D. Comparison of simple potential functions for simulating liquid water. J. Chem. Phys., v. 79, p. 926, 1983.

POPLE,J. A., SANTRY, D. P., SEGAL, G. A. Aproximate self-consistent molecular orbital theory. I. Invariant procedures. J. Chem. Phys., v. 43, p. S129, 1965.

POPLE, J. A., BEVERIDGE, D. L. Approximate Molecular Orbital Theory; McGraw- Hill ; New York, 1970.

STEWART, R. F. Small gaussian expansions of Slater-type orbitals. J. Chem. Phys., v. 52, p. 431, 1970.

Creative Commons License
Este trabalho está licenciado sob uma licença Creative Commons Attribution 4.0 International License.

Copyright (c) 2018 Eclética Química

Métricas

Carregando Métricas ...