PL EN


Preferences help
enabled [disable] Abstract
Number of results
2007 | 111 | 2 | 257-262
Article title

Temperature Dependence of Torsional Frequencies in Some Dichloro-Anilines Using Nuclear Quadrupole Resonance Data

Content
Title variants
Languages of publication
EN
Abstracts
EN
The temperature variation of the nuclear quadrupole resonance frequencies in 3,4-dichloro-aniline and 2,6-dichloro-aniline were fitted to three different models available in literature, namely the Kushida model, the Brown model, and a fourth order polynomial. Brown's model with T_0=205 K gave the best fit in the case of both compounds indicating that the temperature dependence of the torsional frequencies cannot be neglected in these compounds. The internal torsional frequencies were evaluated from the nuclear quadrupole resonance data by using a two-mode approximation in a temperature range of 77-300 K for the above two compounds. The torsional frequencies lie in a range of 30-60 cm^{-1} in both compounds and agree closely with the Raman lines obtained in 2,6-dichloro-aniline. The lower frequency mode around 37 cm^{-1} may be associated with the motion around an axis perpendicular to the benzene ring which is present in both compounds.
Keywords
EN
Publisher

Year
Volume
111
Issue
2
Pages
257-262
Physical description
Dates
published
2007-02
received
2006-08-25
Contributors
  • Department of Physics, Bangalore University, Bangalore 560056, India
author
  • Department of Physics, Bangalore University, Bangalore 560056, India
References
  • 1. T. Kushida, G. Benedek, N. Bloembergen, Phys. Rev., 104, 1364, 1956
  • 2. H. Bayer, Z. Phys., 130, 227, 1951
  • 3. R.J.C. Brown, J. Chem. Phys., 32, 116, 1960
  • 4. H. Nakayama, N. Nakamura, H. Chihara, J. Magn. Reson., 53, 103, 1983
  • 5. D. Biedenkapp, A. Weiss, Ber. Bunsenges. Physik. Chem., 70, 788, 1966
  • 6. M.E. Ramia, M.J. Zuriaga, C.A. Martin, J. Phys. C, Solid State Phys., 21, 3467, 1988
  • 7. I. Tatsuzaki, Y. Yokozawa, J. Phys. Soc. Jpn., 12, 802, 1957
  • 8. M.S. Vijaya, J. Ramakrishna, J. Mol. Phys., 19, 131, 1970
  • 9. V.S.S. Shastry, J. Ramakrishna, Indian J. Pure Appl. Phys., 15, 658, 1977
  • 10. K. Rukmani, Ph.D. Thesis, Indian Institute of Science, 1983
  • 11. H.D. Basavegowda, M.Phil. Thesis, Bangalore University, 1994
  • 12. J. Ramakrishna, Proc. Phys. Soc. Lond., 86, 595, 1965
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv111n206kz
JavaScript is turned off in your web browser. Turn it on to take full advantage of this site, then refresh the page.