Negative thermal expansion in the Prussian Blue analog Zn3[Fe(CN)6]2: X-ray diffraction and neutron vibrational studies

S Adak; L L Daemen; H Nakotte

doi:10.1088/1742-6596/251/1/012007

Negative thermal expansion in the Prussian Blue analog Zn3[Fe(CN)6]2: X-ray diffraction and neutron vibrational studies

Materials Science 2011-08-17 v1 Chemical Physics

Authors: S Adak , L L Daemen , H Nakotte

View on arXiv ↗ PDF ↗ DOI ↗

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 x 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.

Keywords

negative thermal expansion Prussian Blue analog X-ray diffraction inelastic neutron scattering vibrational spectrum

Cite

@article{arxiv.1104.3272,
  title  = {Negative thermal expansion in the Prussian Blue analog Zn3[Fe(CN)6]2: X-ray diffraction and neutron vibrational studies},
  author = {S Adak and L L Daemen and H Nakotte},
  journal= {arXiv preprint arXiv:1104.3272},
  year   = {2011}
}

Comments

4 pages, 3 figures

Related papers

View all related →