Self-Diffusion and Reorientation of Methylammonium Ions in (CH3NH3)2ZnCl4Crystals as Studied by 1H-NMR

Hiroyuki Ishida, Tadashi Iwachido, Naomi Hayama, Ryuichi Ikeda, Mifune Terashima, Daiyu Nakamura

Research output: Contribution to journalArticle

31 Citations (Scopus)

Abstract

Differential thermal analysis, differential scanning calorimetry, and measurements of the 1H spin-lattice relaxation times and second moments of 1H-NMR absorptions were performed on methylammonium tetrachlorozincate(II) crystals over a wide temperature range. A solid-solid phase transition was located at 477 K. From the 1H-NMR experiments it was found that the cations undergo overall reorientation as well as three dimensional translational self-diffusion in the high-temperature phase. In the low-temperature phase, a 120 reorientational motion of the CH3 and NH3 +groups of the cation about its C - N bond axis was detected. The parameters for the motional modes of the cations in the crystal were evaluated from the analysis of the 1H-NMR experimental results.

Original languageEnglish
Pages (from-to)741-746
Number of pages6
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume44
Issue number8
DOIs
Publication statusPublished - Aug 1 1989

Fingerprint

Self-diffusion
retraining
Cations
Crystal
Nuclear magnetic resonance
cations
nuclear magnetic resonance
Thermal Analysis
Relaxation Time
Scanning
Crystals
ions
Absorption
Phase Transition
Spin-lattice relaxation
Moment
spin-lattice relaxation
Relaxation time
Three-dimensional
Temperature

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Mathematical Physics
  • Physics and Astronomy(all)

Cite this

Self-Diffusion and Reorientation of Methylammonium Ions in (CH3NH3)2ZnCl4Crystals as Studied by 1H-NMR. / Ishida, Hiroyuki; Iwachido, Tadashi; Hayama, Naomi; Ikeda, Ryuichi; Terashima, Mifune; Nakamura, Daiyu.

In: Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences, Vol. 44, No. 8, 01.08.1989, p. 741-746.

Research output: Contribution to journalArticle

Ishida, Hiroyuki ; Iwachido, Tadashi ; Hayama, Naomi ; Ikeda, Ryuichi ; Terashima, Mifune ; Nakamura, Daiyu. / Self-Diffusion and Reorientation of Methylammonium Ions in (CH3NH3)2ZnCl4Crystals as Studied by 1H-NMR. In: Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences. 1989 ; Vol. 44, No. 8. pp. 741-746.
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