Bulletin of the Korean Chemical Society

Korean Chemical Society (대한화학회)
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$^{13}$C NMR Relaxation Study of Internal Rotation of Methyl Groups-Spin-Rotational Relaxation of methyl Carbon-13 in 2-bromo-p-xylene, 2,5-dimethylanisole and 2,5-dimethylaniline

  • Published : 1987.04.20
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Abstract

In this work we have investigated temperature dependence of spin-rotational relaxation rate, $(1/T_1)_{SR}$, of methyl carbon-13's in 2-bromo-p-xylene, 2,5-dimethylaniline, and 2,5-dimethylanisole and have found that temperature behaviors of two methyl carbon-13's in ortho- and meta-position, respectively, are substantially different. It has been confirmed that the modified Burke-Chan model proposed by Park et al. can nicely explain different temperature dependence of $(1/T_1)_{SR}$ for these two methyl carbon-13's while the original Burke-Chan model fails to do so.

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References

  1. NMR, Basic Principles and Progress v.3 F. Noack;P. Diehl(ed.);E. Fluck(ed.);R. Kosfeld(ed.)
  2. Topics in Carbon-13 NMR Spectroscopy v.3 D. A. Wright(et al.);G. C. Levy(ed.)
  3. Master of Science Thesis, Seoul National University K. S. Park
  4. J. Magn. Reson. v.2 T. E. Burke;S. I. Chan
  5. J. Am. Chem. Soc. v.90 K. F. Kuhlmann;D. M. Grant
  6. J. Chem. Phys. v.46 A. S. Dubin;S. I. Chan
  7. J. Chem. Phys. v.51 R. E. D. McClung
  8. J. Chem. Phys. v.57 R. E. D. McClung
  9. J. Magn. Reson. v.5 C. F. Schmidt, Jr.;S. I. Chan
  10. J. Magn. Reson. v.6 R.F. Parker;J. Jonas
  11. J. Magn. Reson. v.33 W. Suchanski;P. S. Canepa
  12. NMR Spectroscopy H. Gunther
  13. Nuclear Magnetic Resonance R. K. Harris
  14. J. Chem. Phys. v.51 R. Freeman;H. D. W. Hill
  15. J. Magn. Reson. v.24 R. K. Harris;R. H. Newman
  16. Experiments in Physical Chemistry D. P. Shoemaker;C. W. Garland
  17. Experimental Physical Chemistry F. Daniels(et al.)