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백윤기,Celesta L. Chang 한국자기공명학회 2013 Journal of the Korean Magnetic Resonance Society Vol.17 No.1
The temperature dependences of the NMR spectrum and the spin-lattice relaxation times in KH2PO4 were investigated via single-crystal NMR and MAS NMR. The stretched-exponential relaxation that occurred because of the distribution of correlation times was indicative of the degree of the distribution of the double-well potential on the hydrogen bond. The behaviors responsible for the strong temperature dependences of the 1H and 31P spin-lattice relaxation times in the rotating frame T1ρ in KH2PO4 are likely related to the reorientational motion of the hydrogen-bond geometry and the PO4 tetrahedral distortion.
Paik, Younkee,Chang, Celesta L. Korean Magnetic Resonance Society 2013 Journal of the Korean Magnetic Resonance Society Vol.17 No.1
The temperature dependences of the NMR spectrum and the spin-lattice relaxation times in $KH_2PO_4$ were investigated via single-crystal NMR and MAS NMR. The stretched-exponential relaxation that occurred because of the distribution of correlation times was indicative of the degree of the distribution of the double-well potential on the hydrogen bond. The behaviors responsible for the strong temperature dependences of the $^1H$ and $^{31}P$ spin-lattice relaxation times in the rotating frame $T_{1{\rho}}$ in $KH_2PO_4$ are likely related to the reorientational motion of the hydrogen-bond geometry and the $PO_4$ tetrahedral distortion.