Vibrational Dephasing of Axial and Equatorial Conformers in Cyclohexyl Halides

H. ABRAMCZYK; M. BARUT; A. BEN ALTABEF; R. ESCRIBANO

JOURNAL OF PHYSICAL CHEMISTRY

AMER CHEMICAL SOC

Año: 1994 vol. 98 p. 424 - 428

0022-3654

The Raman and IR spectra of the C-X stretching modes (X = C1, Br, I) in the axial and the equatorial positions of cyclohexyl halides have been measured at room temperature. The band broadening mechanisms and the differences in the rate of vibrational dephasing of the axial and the equatorial conformers have been discussed. It has been found that intermolecular long-range transition dipoletransition dipole coupling gives the main contribution to the differences in vibrational dephasing rate. This paper demonstrates that a simultaneous study of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of cyclohexyl halides have been measured at room temperature. The band broadening mechanisms and the differences in the rate of vibrational dephasing of the axial and the equatorial conformers have been discussed. It has been found that intermolecular long-range transition dipoletransition dipole coupling gives the main contribution to the differences in vibrational dephasing rate. This paper demonstrates that a simultaneous study of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of cyclohexyl halides have been measured at room temperature. The band broadening mechanisms and the differences in the rate of vibrational dephasing of the axial and the equatorial conformers have been discussed. It has been found that intermolecular long-range transition dipoletransition dipole coupling gives the main contribution to the differences in vibrational dephasing rate. This paper demonstrates that a simultaneous study of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of cyclohexyl halides have been measured at room temperature. The band broadening mechanisms and the differences in the rate of vibrational dephasing of the axial and the equatorial conformers have been discussed. It has been found that intermolecular long-range transition dipoletransition dipole coupling gives the main contribution to the differences in vibrational dephasing rate. This paper demonstrates that a simultaneous study of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of cyclohexyl halides have been measured at room temperature. The band broadening mechanisms and the differences in the rate of vibrational dephasing of the axial and the equatorial conformers have been discussed. It has been found that intermolecular long-range transition dipoletransition dipole coupling gives the main contribution to the differences in vibrational dephasing rate. This paper demonstrates that a simultaneous study of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. C-X stretching modes (X = C1, Br, I) in the axial and the equatorial positions of cyclohexyl halides have been measured at room temperature. The band broadening mechanisms and the differences in the rate of vibrational dephasing of the axial and the equatorial conformers have been discussed. It has been found that intermolecular long-range transition dipoletransition dipole coupling gives the main contribution to the differences in vibrational dephasing rate. This paper demonstrates that a simultaneous study of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms. a simultaneous study of the vibrational dephasing of different conformers provides a method to isolate the individual relaxation mechanisms.