Tunneling Rotation of Two Inequivalent Methyl Groups in Orthorhombic Acetamide

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概要

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• The proton spin-lattice relaxation in orthorhombic acetamide haS been investigatedbetween 250 K and 20 K at 25.0 MHz and 11.4 MHz. The temperature dependence ofthe spin-lattice relaxation was explained from the consideration of the rotational funneting motions of two inequivalent methyl groups having different tunneling frequen-cies, cu.=ll9f20MHz and another one estimated to be a few hundreds MHz.Nonexponential magnetization recovery observed in the temperature region above 40K was explained in terms of rapidly reorientating three spin systems. The spin-latticerelaxation rate of 'H NMR was also compared with that of "N NQR in the sameacetamide.

• 社団法人日本物理学会の論文
• 1986-07-15

著者

• YOSHIZAKI Ryozo

  Institute of Applied Physics,University of Tsukuba

• Watanabe S

  Yokohama Yokohama Jpn

• Shinsuke Watanabe

  Department Of Energy Engineering Faculty Of Engineering Yokohama National University

• YOSHIZAKI Ryozo

  Cryogenics Center, University of Tsukuba

• Abe Yoshihito

  Institute Of Physics University Of Tsukuba

• Abe Yoshihito

  Institute Fo Physics The University Of Tsukuba

• WATANABE Satoru

  Institute of Physics,University of Tsukuba

• Yoshizaki R

  Cryogenics Center University Of Tsukuba

• Yoshizaki Ryozo

  Institute Of Appl. Phys. Univ. Of Tsukuba

• Watanabe Satoru

  Institute Of Applied Biochemistry University Of Tsukuba:(present Address) Seitoku Junior Collage Of

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