NUCLEAR SPIN RELAXATION IN LIQUID AND SOLID METHANE: ISOTOPE EFFECTS
作者： Gerald A. De Wit , Myer Bloom
DOI: 10.1139/P65-098
关键词:
摘要: The deuteron spin–lattice relaxation time T1 and spin–spin T2 have been studied in CD4 CD3H between 55 °K 110 °K. was found to increase very slowly with temperature over the entire range for no measurable change being observable at melting point. Since spin is produced by intramolecular quadrupolar interactions, these results are strong disagreement Debye rotational diffusion model often used describe molecular reorientation. These reanalyze proton data CH4−nDn previously given Bloom Sandhu. contributions from intermolecular dipolar interactions were be close agreement theory. Contributions spin–rotation interaction extremely small or zero this range. effects of translational on just below point also discussed.
harvard.edu
osti.gov
nrcresearchpress.com参考文章(17)
C. F. Curtiss, J. O. Hirschfelder, R. B. Bird, Molecular theory of gases and liquids ,(1954)
R. J. C. Brown, H. S. Gutowsky, K. Shimomura, Nuclear Spin Relaxation in Liquid CHFCl2 The Journal of Chemical Physics. ,vol. 38, pp. 76- 86 ,(1963) , 10.1063/1.1733499
E. R. Andrew, H. Y. Carr, Nuclear Magnetic Resonance Physics Today. ,vol. 9, pp. 18- 18 ,(1956) , 10.1063/1.3059898
P. Pyykkö, Deuteron magnetic resonance absorption in polycrystalline heavy methane between 1.4 and 73°K Physics Letters. ,vol. 23, pp. 296- 297 ,(1966) , 10.1016/0031-9163(66)90005-9
G.A. De Wit, M. Bloom, Nuclear spin relaxation and molecular reorientation in methane at low temperatures Physics Letters. ,vol. 21, pp. 39- 41 ,(1966) , 10.1016/0031-9163(66)91332-1
Jamshid Naghizadeh, Stuart A. Rice, Kinetic Theory of Dense Fluids. X. Measurement and Interpretation of Self‐Diffusion in Liquid Ar, Kr, Xe, and CH4 Journal of Chemical Physics. ,vol. 36, pp. 2710- 2720 ,(1962) , 10.1063/1.1732357
Hubert M. James, Thomas A. Keenan, Theory of Phase Transitions in Solid Heavy Methane The Journal of Chemical Physics. ,vol. 31, pp. 12- 41 ,(1959) , 10.1063/1.1730276
Hiroshi Shimizu, Time‐Correlation Function of Molecular Random Motion and Shape of Spectral Bands The Journal of Chemical Physics. ,vol. 43, pp. 2453- 2465 ,(1965) , 10.1063/1.1697145
Paul S. Hubbard, Nuclear Magnetic Relaxation by Intermolecular Dipole-Dipole Interactions Physical Review. ,vol. 131, pp. 275- 282 ,(1963) , 10.1103/PHYSREV.131.275
Hiroshi Suga, Masayasu Sugisaki, SyÛzô Seki, Self-Diffusion in Some Plastic Crystals Molecular Crystals and Liquid Crystals. ,vol. 1, pp. 377- 394 ,(1966) , 10.1080/15421406608083279