1H NMR study of ionic motions in high temperature solid phases of (CH3NH3)2ZnCl4

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3 Citations (Scopus)

Abstract

The reorientation of the tetrahedral complex anion ZnCl4 2- and the self-diffusion of the cation in (CH3NH3)2ZnCl4 were studied by 1H NMR spin-lattice relaxation time (1HT1) experiments. In the second highest-temperature phase, the temperature dependence of 1HT1 observed at 8.5 MHz could be explained by a magnetic dipolar-electric quadrupolar cross relaxation between 1H and chlorine nuclei, and the activation energy of the anion motion was determined to be 105 kJ mol-1. In the highest-temperature phase, the activation energy of the self-diffusion of the cation was determined to be 58 kJ-1 from the temperature and frequency dependence of 1HT1.

Original languageEnglish
Pages (from-to)412-414
Number of pages3
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume55
Issue number3-4
Publication statusPublished - Mar 2000

Fingerprint

Self-diffusion
Activation Energy
solid phases
Nuclear magnetic resonance
activation energy
anions
cations
temperature dependence
nuclear magnetic resonance
cross relaxation
Motion
Temperature Dependence
Relaxation Time
spin-lattice relaxation
Nucleus
retraining
Anions
chlorine
Cations
Activation energy

Keywords

  • (CHNH)ZnCl
  • Cross Relaxation
  • Molecular Motion
  • Nuclear Magnetic Resonance

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

Cite this

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abstract = "The reorientation of the tetrahedral complex anion ZnCl4 2- and the self-diffusion of the cation in (CH3NH3)2ZnCl4 were studied by 1H NMR spin-lattice relaxation time (1HT1) experiments. In the second highest-temperature phase, the temperature dependence of 1HT1 observed at 8.5 MHz could be explained by a magnetic dipolar-electric quadrupolar cross relaxation between 1H and chlorine nuclei, and the activation energy of the anion motion was determined to be 105 kJ mol-1. In the highest-temperature phase, the activation energy of the self-diffusion of the cation was determined to be 58 kJ-1 from the temperature and frequency dependence of 1HT1.",
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T1 - 1H NMR study of ionic motions in high temperature solid phases of (CH3NH3)2ZnCl4

AU - Ishida, Hiroyuki

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N2 - The reorientation of the tetrahedral complex anion ZnCl4 2- and the self-diffusion of the cation in (CH3NH3)2ZnCl4 were studied by 1H NMR spin-lattice relaxation time (1HT1) experiments. In the second highest-temperature phase, the temperature dependence of 1HT1 observed at 8.5 MHz could be explained by a magnetic dipolar-electric quadrupolar cross relaxation between 1H and chlorine nuclei, and the activation energy of the anion motion was determined to be 105 kJ mol-1. In the highest-temperature phase, the activation energy of the self-diffusion of the cation was determined to be 58 kJ-1 from the temperature and frequency dependence of 1HT1.

AB - The reorientation of the tetrahedral complex anion ZnCl4 2- and the self-diffusion of the cation in (CH3NH3)2ZnCl4 were studied by 1H NMR spin-lattice relaxation time (1HT1) experiments. In the second highest-temperature phase, the temperature dependence of 1HT1 observed at 8.5 MHz could be explained by a magnetic dipolar-electric quadrupolar cross relaxation between 1H and chlorine nuclei, and the activation energy of the anion motion was determined to be 105 kJ mol-1. In the highest-temperature phase, the activation energy of the self-diffusion of the cation was determined to be 58 kJ-1 from the temperature and frequency dependence of 1HT1.

KW - (CHNH)ZnCl

KW - Cross Relaxation

KW - Molecular Motion

KW - Nuclear Magnetic Resonance

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