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Effect of Proton Substitution in Li2RbH(SO4)2 Single Crystal Studied by Nuclear Magnetic Resonance Relaxation
Applied Magnetic Resonance ( IF 1 ) Pub Date : 2019-11-02 , DOI: 10.1007/s00723-019-01169-x
Ae Ran Lim

This study investigated the effect of proton substitution on the phase transitions of Li2RbH(SO4)2 crystals. In order to determine the effects on the molecular motions of Li2RbH(SO4)2 crystals, we compared nuclear magnetic resonance (NMR) relaxation measurements with those of LiRbSO4 crystals. The spin–lattice relaxation time of 87Rb shows similar trends in Li2RbH(SO4)2 and LiRbSO4 crystals, whereas that of 7Li shows different trends. The main effects produced by the substitution of protons are demonstrated in the variations of the phase transition temperatures and the molecular motions. Lithium and protons in Li2RbH(SO4)2 have higher mobilities than lithium in LiRbSO4.

中文翻译:

核磁共振弛豫研究 Li2RbH(SO4)2 单晶中质子取代的影响

本研究调查了质子取代对 Li2RbH(SO4)2 晶体相变的影响。为了确定对 Li2RbH(SO4)2 晶体分子运动的影响,我们将核磁共振 (NMR) 弛豫测量值与 LiRbSO4 晶体的测量值进行了比较。87Rb 的自旋晶格弛豫时间在 Li2RbH(SO4)2 和 LiRbSO4 晶体中显示出相似的趋势,而 7Li 则显示出不同的趋势。质子取代产生的主要影响体现在相变温度和分子运动的变化中。Li2RbH(SO4)2 中的锂和质子的迁移率高于 LiRbSO4 中的锂。
更新日期:2019-11-02
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