Negative thermal expansion in the Prussian Blue analog Zn 3[Fe(CN)6]2: X-ray diffraction and neutron vibrational studies

  • S. Adak
  • , L. L. Daemen
  • , H. Nakotte

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Abstract

The cubic Prussian Blue (PB) analog, Zn3 [Fe(CN) 6]2, has been studied by X-ray powder diffraction and inelastic neutron scattering (INS). X-ray data collected at 300 and 84 K revealed negative thermal expansion (NTE) behaviour for this material. The NTE coefficient was found to be -31.1 × 10-6 K-1. The neutron vibrational spectrum for Zn3[Fe(CN)6] 2.xH2O, was studied in detail. The INS spectrum showed well-defined, well-separated bands corresponding to the stretching of and deformation modes of the Fe and Zn octahedra, all below 800 cm-1.

Original languageEnglish
Article number012007
JournalJournal of Physics: Conference Series
Volume251
Issue number1
DOIs
StatePublished - 2010

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