The Disordered Crystal Structures of Zn(CN)2and Ga(CN)3

D. J. Williams, D. E. Partin, F. J. Lincoln, John Kouvetakis, M. O'Keeffe

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Abstract

The structure of Zn(CN)2has been reexamined using neutron time-of-flight diffraction and has been determined to have symmetryPn3m,a=5.9227 (1) Å at 14 K and 5.8917 (1) Å at 305 K (negative thermal "expansion"). The CN groups are disordered in contrast to the ordered arrangement with symmetryP43massumed in earlier X-ray diffraction experiments. Zn is tetrahedrally surrounded with average Zn-(C, N)=1.9697(3) and C-N=1.1897(1) Å. Ga(CN)3has been examined for the first time. X-ray powder diffraction shows it to have a cubic Prussian blue framework structure, symmetryPm3m,a=5.295(2) Å, also with CN disorder. Ga is octahedrally surrounded with average Ga-(C, N) distance=2.072(2) Å and C-N=1.148(1) Å.

Original languageEnglish (US)
Pages (from-to)164-169
Number of pages6
JournalJournal of Solid State Chemistry
Volume134
Issue number1
DOIs
StatePublished - Nov 15 1997

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X ray powder diffraction
Neutrons
Diffraction
Crystal structure
X ray diffraction
crystal structure
diffraction
Experiments
thermal expansion
x rays
disorders
neutrons
ferric ferrocyanide
Negative thermal expansion

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

The Disordered Crystal Structures of Zn(CN)2and Ga(CN)3 . / Williams, D. J.; Partin, D. E.; Lincoln, F. J.; Kouvetakis, John; O'Keeffe, M.

In: Journal of Solid State Chemistry, Vol. 134, No. 1, 15.11.1997, p. 164-169.

Research output: Contribution to journalArticle

Williams, DJ, Partin, DE, Lincoln, FJ, Kouvetakis, J & O'Keeffe, M 1997, 'The Disordered Crystal Structures of Zn(CN)2and Ga(CN)3 ', Journal of Solid State Chemistry, vol. 134, no. 1, pp. 164-169. https://doi.org/10.1006/jssc.1997.7571
Williams, D. J. ; Partin, D. E. ; Lincoln, F. J. ; Kouvetakis, John ; O'Keeffe, M. / The Disordered Crystal Structures of Zn(CN)2and Ga(CN)3 In: Journal of Solid State Chemistry. 1997 ; Vol. 134, No. 1. pp. 164-169.
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