Abstract:
Alterations have been introduced in the semi‐empirical INDO parameters in order to study their influence on the Fermi contact term of the indirect spin–spin coupling constants as calculated by the finite perturbation theory (FPT). For this purpose a set of molecules containing hydrogen, carbon and/or fluorine has been selected. In general, most coupling constants are found to be much more sensitive than other molecular properties to small changes in the INDO parameters. This sensitivity depends strongly on the particular calculated coupling constant. In most cases the uncertainty in the INDO parameters leads to uncertainties in the coupling constants which are much greater than their experimental errors. Copyright © 1980 Heyden & Son Ltd.
Registro:
Documento: |
Artículo
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Título: | Influence of the INDO parameterization on the indirect spin–spin coupling constants as calculated by the FPT INDO method |
Autor: | Contreras, R.H.; Engelmann, A.R.; Scuseria, G.E.; Facelli, J.C. |
Filiación: | Departamento de Física, Facultad de Ciencias Exactas Y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Pabellón I, Buenos Aires, 1428, Argentina
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Año: | 1980
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Volumen: | 13
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Número: | 2
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Página de inicio: | 137
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Página de fin: | 142
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DOI: |
http://dx.doi.org/10.1002/mrc.1270130216 |
Título revista: | Organic Magnetic Resonance
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Título revista abreviado: | Magn. Reson. Chem.
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ISSN: | 00304921
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00304921_v13_n2_p137_Contreras |
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Citas:
---------- APA ----------
Contreras, R.H., Engelmann, A.R., Scuseria, G.E. & Facelli, J.C.
(1980)
. Influence of the INDO parameterization on the indirect spin–spin coupling constants as calculated by the FPT INDO method. Organic Magnetic Resonance, 13(2), 137-142.
http://dx.doi.org/10.1002/mrc.1270130216---------- CHICAGO ----------
Contreras, R.H., Engelmann, A.R., Scuseria, G.E., Facelli, J.C.
"Influence of the INDO parameterization on the indirect spin–spin coupling constants as calculated by the FPT INDO method"
. Organic Magnetic Resonance 13, no. 2
(1980) : 137-142.
http://dx.doi.org/10.1002/mrc.1270130216---------- MLA ----------
Contreras, R.H., Engelmann, A.R., Scuseria, G.E., Facelli, J.C.
"Influence of the INDO parameterization on the indirect spin–spin coupling constants as calculated by the FPT INDO method"
. Organic Magnetic Resonance, vol. 13, no. 2, 1980, pp. 137-142.
http://dx.doi.org/10.1002/mrc.1270130216---------- VANCOUVER ----------
Contreras, R.H., Engelmann, A.R., Scuseria, G.E., Facelli, J.C. Influence of the INDO parameterization on the indirect spin–spin coupling constants as calculated by the FPT INDO method. Magn. Reson. Chem. 1980;13(2):137-142.
http://dx.doi.org/10.1002/mrc.1270130216