Nuclear Magnetic Resonance in Molecular Chlorine Compounds
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概要
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We have measured the chemical shifts, the transverse- and longitudinal-relaxation times of chlorine nuclear magnetic resonance of such liquid chlorine compounds as TiCl_4, VOCl_3, CrO_2Cl_2, and SiCl_4, of which the quadrupole coupling constants were measured by Dehmelt by means of the pure quadrupole resonance experiment. Our results were considered in view of the correlation to quadrupole coupling constant. Line widths are nearly proportional to the square of the quadrupole coupling constant. The equality cf the transverse relaxation time T_2 and the longitudinal relaxation time T_1 has been verified experimentally in these compounds. Solomon's method for the calculation of T_1 and T_2 was applied to a quadrupole relaxation. T_1 is exactly equal to T_2 in cases where quadrupole relaxation is essential, the molecular surroundings are isotropic, and further the extreme narrow conditions are well established. This result is identical to Wangsness and Bloch's. Experjmental T_1 values are about ten times larger than the theoretical one and the reason of the discrepancy is discussed. In Appendix, estimation of chemical shift by d-electron is given.
- 社団法人日本物理学会の論文
- 1956-06-05
著者
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MASUDA Yoshika
Department of Physics,Nagoya University
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Masuda Yoshika
Department Of Physics Kobe University
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Masuda Yoshika
Department Of Liberal Arts Aichi Gakuin University
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