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You searched on: Author: jon hougen

Displaying records 21 to 30 of 90 records.
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21. Towards the Complete Analysis of the Rotational Spectrum of (CH^d3^)^d3^SnCl
Published: 1/7/2008
Authors: Melanie Schnell, Jon Torger Hougen, J U Grabow
Abstract: The rotational spectrum of the symmetric top trimethyl tin chloride (CH3)3SnCl has been studied using a pulsed molecular beam Fourier transform microwave spectrometer in the frequency range from 3 to 24 GHz. The spectrum is exceedingly complicated ...

22. Reanalysis of the Microwave Absorption Spectrum of Dimethyl Methylphosphonate and Its Internal Rotation Problem
Published: 1/10/2007
Authors: Nobukimi Ohashia, Jon Torger Hougen
Abstract: The Fourier transform microwave spectrum of dimethyl methylphosphonate studied by us previously is reanalyzed here to obtain more physically reasonable parameters describing the various Coriolis-like couplings between overall rotation and internal ro ...

23. Two-Dimensional Tunneling Hamiltonian Treatment of the Microwave Spectrum of 2-Methylmalonaldehyde
Published: 10/26/2006
Authors: Yung-Ching Chou, Jon Torger Hougen
Abstract: The molecule 2-methylmalonaldehyde (2-MMA) exists in the gas phase as a six-membered hydrogen-bonded ring [HO-CH=C(CH3)-CH=O] and exhibits two large-amplitude motions, an intramolecular hydrogen transfer and a methyl torsion. The former motion is in ...

24. Internal Rotation and Spin Conversion of CH^d3^OH in Solid Para-Hydrogen
Published: 1/20/2006
Authors: Y J Wu, R M Lees, L H Xu, Jon Torger Hougen, Yuan-Pern Lee
Abstract: The quantum solid para-hydrogen (p-H2) has recently emerged as a novel host for matrix-isolation spectroscopy; species isolated in p-H2 exhibit spectral lines with widths much smaller than for samples in other inert-gas matrices, and several species ...

25. Electronic Spectra of Molecules with Two C^d3v^ Internal Rotors: Torsional Analysis of the A^u1^A^du-^X^u1^A^dg^ Spectrum of Biacetyl
Published: 9/1/2005
Authors: Cheng-Liang Huang, Chen-Lin Liu, Chi-Kung Ni, Jon Torger Hougen

26. The Rotational Spectrum of the Ground State of Methylamine
Published: 2/1/2005
Authors: Vadim V Ilyushin, E A Alekseev, S F Dyubkoa, R A Motiyenkoa, Jon Torger Hougen
Abstract: Recent progress is reported in measuring, assigning and fitting the rotational spectrum of the ground vibrational state of methylamine, CH3NH2, a spectrum complicated both by internal rotation of the methyl top and by inversion of the amino group. N ...

27. Ground and First Excited Torsional States of Acetamide
Published: 10/1/2004
Authors: Vadim V Ilyushin, E A Alekseev, S K Dyubko, I Kleiner, Jon Torger Hougen
Abstract: Recent progress in measuring, assigning and fitting the millimeter wave spectrum of the ground, first and second excited torsional states of the acetamide molecule CH3CONH2 is reported. New measurements of the acetamide spectrum have been carried out ...

28. Analysis and Fit of the Fourier-Transform Microwave Spectrum of the Two-Top Molecule N-methylacetamide
Published: 9/1/2004
Authors: N Ohashi, Jon Torger Hougen, R D. Suenram, Francis John Lovas, Y Kawashima, M Fujitake (Japan), J Pyka
Abstract: The jet-cooled Fourier-transform microwave spectrum of N-methylacetamide (CH3-NH-C(=O)-CH3), a molecule containing two methyl tops with relatively low barriers to internal rotation, has been recorded and fit to nearly experimental measurement uncerta ...

29. Analysis and Fit of the Fourier Transform Microwave Spectrum of the Two-Top Molecule N-Methylacetamide
Published: 1/1/2004
Authors: N Ohashi, Jon Torger Hougen, R D. Suenram, Francis John Lovas, Y Kawashima, M Fujitake, J Pyka

30. Anomalous Splittings of Torsional Sublevels Induced by the Aldehyde Inversion Motion in the S^d1^ State of Acetaldehyde
Published: 1/1/2004
Authors: Y Chou, I Chen, Jon Torger Hougen

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