Hindered Rotation in Methyl Alcohol

Koehler, J. S.; Dennison, David M.

doi:10.1103/physrev.57.1006

Cited by 237 publications

(50 citation statements)

References 7 publications

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“…19,20,22 As shown in Fig. 6, the lowest-six eigen states are labeled by the irreducible representation in the C 3v group, E (L) , A 1 , A 2 and E (H) , where E (L) and E (H) are the doubly degenerate representations and the degenerate bases are labeled by the indexes + and −.…”

Section: A Derivation Of the Effective Vibronic Hamiltonianmentioning

confidence: 99%

Dynamical Jahn-Teller effect in a spin-orbital coupled system

Nasu

Ishihara

2013

Phys. Rev. B

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Dynamical Jahn-Teller (DJT) effect in a spin-orbital coupled system on a honeycomb lattice is examined, motivated from recently observed spin-liquid behavior in Ba3CuSb2O9. An effective vibronic Hamiltonian, where the superexchange interaction and the DJT effect are taken into account, is derived. We find that the DJT effect induces a spin-orbital resonant state where local spin-singlet states and parallel orbital configurations are entangled with each other. This spin-orbital resonant state is realized in between an orbital ordered state, where spin-singlet pairs are localized, and an antiferromagnetic ordered state. Based on the theoretical results, a possible scenario for Ba3CuSb2O9 is proposed.

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Section: A Derivation Of the Effective Vibronic Hamiltonianmentioning

confidence: 99%

Dynamical Jahn-Teller effect in a spin-orbital coupled system

Nasu

Ishihara

2013

Phys. Rev. B

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“…The energy levels are labeled as |nK, J͘ v , based on the notation developed by Dennison (7,8). Here n is the torsional quantum number, defines the symmetry species, K is the component of the rotational angular momentum J along the a axis, J is the rotational quantum number, and the v superscript represents the remaining small-amplitude vibrational quantum numbers.…”

Section: Theoretical Aspectsmentioning

confidence: 99%

Fourier Transform Infrared Spectroscopy and Vibrational Coupling in the OH-Bending Band of13CH3OH

Predoi‐Cross

Lees

Johns

1998

Journal of Molecular Spectroscopy

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“…If the barrier is of a comparable (although probably somewhat smaller) magnitude to that in the roughly similar case of methanol 16 an appreciable number of molecules will occupy the first excited torsional vibration level. Indeed, if the figure 250 cm -1 for the height of this excited state above the ground level listed in Table IV is correct, a line in the observed spectrum due to axis (not the symmetry axis of the methyl group).…”

Section: Internal Rotationmentioning

confidence: 99%

The Microwave Spectra of CH₃NCS and CH₃SCN

Beard¹,

Dailey²

1949

J. Am. Chem. Soc.

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Measurements of the pure rotational spectra of CH3NCS and CH 3 SCIT have been made in the frequency range from 20,000 to 30,000 Mc/sec.Experimental techniques used and the interpretation of the spectra of these molecules are discussed. A theoretical spectrum for CH 3 NCS has been set up and the complicating effects of the removal of degeneracies by asymmetry and by an external electric field, of centrifugal distortion, of the presence of excited vibrational states, of internal rotation, of isotopic varieties of the molecule, of nuclear quadrupole coupling, and of other allowed asymmetric rotor transitions are calculated. There is good general agreement between the theoretical and observed spectra for CH 3 NICS. The spectrum of CH 3 SCN was too weak for detailed analysis but values of the average rotational constant !(B+C) are presented.

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Hindered Rotation in Methyl Alcohol

Cited by 237 publications

References 7 publications

Dynamical Jahn-Teller effect in a spin-orbital coupled system

Dynamical Jahn-Teller effect in a spin-orbital coupled system

Fourier Transform Infrared Spectroscopy and Vibrational Coupling in the OH-Bending Band of13CH3OH

The Microwave Spectra of CH₃NCS and CH₃SCN

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Hindered Rotation in Methyl Alcohol

Cited by 237 publications

References 7 publications

Dynamical Jahn-Teller effect in a spin-orbital coupled system

Dynamical Jahn-Teller effect in a spin-orbital coupled system

Fourier Transform Infrared Spectroscopy and Vibrational Coupling in the OH-Bending Band of13CH3OH

The Microwave Spectra of CH3NCS and CH3SCN

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The Microwave Spectra of CH₃NCS and CH₃SCN