127I NQR and Crystal Structure Studies of [N(CH3)4]2CdI4

Research output: Contribution to journal › Article › Research › peer review

Authors

  • Hideta Ishihara
  • Keizo Horiuchi
  • Thorsten M. Gesing
  • Shi Qi Dou
  • J. Christian Buhl
  • Hiromitsu Terao

Research Organisations

External Research Organisations

  • Saga University
  • University of the Ryukyus
  • Tokushima University
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Details

Original languageEnglish
Pages (from-to)225-229
Number of pages5
JournalZeitschrift fur Naturforschung - Section A Journal of Physical Sciences
Volume55
Issue number1-2
Publication statusPublished - 1 Feb 2000

Abstract

The temperature dependence of 1271 NQR and DSC as well as the crystal structure at room temperature of the title compound were determined. This compound shows a first-order phase transition of an order-disorder type at 245 K. Eight127I(v:1 NQR lines of 79.57, 81.86, 82.56, 83.36, 84.68, 87.72, 88.34, and 88.86 MHz, and corresponding eight 127I(i/2: m = ±| ±) NQR lines were observed at liquid nitrogen temperature. Three l27I(v1) NQR lines with an intensity ratio of 1:1:2 in the order of decreasing frequency were observed just above the transition point and two NQR lines except for the middle-frequency line disappeared around room temperature. This temperature behavior of NQR lines is very similar to that observed in [N(CH3)4]2Hgl4. Another first-order phase transition takes place at 527 K. The structure of the room-temperature phase was redetermined: orthorhombic, Pnma, Z = 4, a = 1342.8(3), b = 975.7(2), c = 1696.5(3) pm. The NQR result of three lines with an intensity ratio of 1:1:2 is in agreement with this structure. The thermal displacement parameters of atoms in both cations and anions are large.

Keywords

    Crystal Structure, DSC, NQR, Phase Transitio

ASJC Scopus subject areas

Cite this

127I NQR and Crystal Structure Studies of [N(CH3)4]2CdI4. / Ishihara, Hideta; Horiuchi, Keizo; Gesing, Thorsten M. et al.
In: Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences, Vol. 55, No. 1-2, 01.02.2000, p. 225-229.

Research output: Contribution to journal › Article › Research › peer review

Ishihara H, Horiuchi K, Gesing TM, Dou SQ, Buhl JC, Terao H. 127I NQR and Crystal Structure Studies of [N(CH3)4]2CdI4. Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences. 2000 Feb 1;55(1-2):225-229. doi: 10.1515/zna-2000-1-240, https://doi.org/10.15488/2371
Ishihara, Hideta ; Horiuchi, Keizo ; Gesing, Thorsten M. et al. / 127I NQR and Crystal Structure Studies of [N(CH3)4]2CdI4. In: Zeitschrift fur Naturforschung - Section A Journal of Physical Sciences. 2000 ; Vol. 55, No. 1-2. pp. 225-229.
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abstract = "The temperature dependence of 1271 NQR and DSC as well as the crystal structure at room temperature of the title compound were determined. This compound shows a first-order phase transition of an order-disorder type at 245 K. Eight127I(v:1 NQR lines of 79.57, 81.86, 82.56, 83.36, 84.68, 87.72, 88.34, and 88.86 MHz, and corresponding eight 127I(i/2: m = ±| ±) NQR lines were observed at liquid nitrogen temperature. Three l27I(v1) NQR lines with an intensity ratio of 1:1:2 in the order of decreasing frequency were observed just above the transition point and two NQR lines except for the middle-frequency line disappeared around room temperature. This temperature behavior of NQR lines is very similar to that observed in [N(CH3)4]2Hgl4. Another first-order phase transition takes place at 527 K. The structure of the room-temperature phase was redetermined: orthorhombic, Pnma, Z = 4, a = 1342.8(3), b = 975.7(2), c = 1696.5(3) pm. The NQR result of three lines with an intensity ratio of 1:1:2 is in agreement with this structure. The thermal displacement parameters of atoms in both cations and anions are large.",
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AU - Gesing, Thorsten M.

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