Abstract:
The experimental non-zero dipole moment of trans-1,4-dicyanocyclohexane was verified through a procedure little sensitive to solute/solvent interactions. This value cannot be explained on the basis of the generally accepted centrosymmetry for trans-1,4-derivatives of cyclohexane. NMR data of both this compound and its C-1, C-4 di-deuteroderivative, as well as semi-empirical theoretical calculations with the MNDO methods show that besides a centro-symmetric form there are also low energy stable non-centrosymmetric geometries. The latter exist as a helical deformation that can account for the non-zero value of the experimental dipole moment. © 1988.
Registro:
Documento: |
Artículo
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Título: | Unexpected chirality in trans-1,4-dicyanocyclohexane |
Autor: | Barón, M.; Medrano, J.A.; Ferraro, M.; Buep, A.H. |
Filiación: | Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Pabellon 1- Ciudad Universitaria-Nunez, 1428 Buenos Aires, Argentina
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Año: | 1988
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Volumen: | 172
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Número: | C
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Página de inicio: | 355
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Página de fin: | 367
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DOI: |
http://dx.doi.org/10.1016/0022-2860(88)87028-5 |
Título revista: | Journal of Molecular Structure
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Título revista abreviado: | J. Mol. Struct.
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ISSN: | 00222860
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CODEN: | JMOSB
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Registro: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_00222860_v172_nC_p355_Baron |
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Citas:
---------- APA ----------
Barón, M., Medrano, J.A., Ferraro, M. & Buep, A.H.
(1988)
. Unexpected chirality in trans-1,4-dicyanocyclohexane. Journal of Molecular Structure, 172(C), 355-367.
http://dx.doi.org/10.1016/0022-2860(88)87028-5---------- CHICAGO ----------
Barón, M., Medrano, J.A., Ferraro, M., Buep, A.H.
"Unexpected chirality in trans-1,4-dicyanocyclohexane"
. Journal of Molecular Structure 172, no. C
(1988) : 355-367.
http://dx.doi.org/10.1016/0022-2860(88)87028-5---------- MLA ----------
Barón, M., Medrano, J.A., Ferraro, M., Buep, A.H.
"Unexpected chirality in trans-1,4-dicyanocyclohexane"
. Journal of Molecular Structure, vol. 172, no. C, 1988, pp. 355-367.
http://dx.doi.org/10.1016/0022-2860(88)87028-5---------- VANCOUVER ----------
Barón, M., Medrano, J.A., Ferraro, M., Buep, A.H. Unexpected chirality in trans-1,4-dicyanocyclohexane. J. Mol. Struct. 1988;172(C):355-367.
http://dx.doi.org/10.1016/0022-2860(88)87028-5