Jump to main content
Jump to site search

Issue 8, 2003
Previous Article Next Article

Unexpected isotope effect on the spin transition of the coordination polymer Fe(C5H5N)2[Ni(CN)4]

Author affiliations

Abstract

The two-dimensional coordination polymer spin-crossover compound Fe(pyridine)2[Ni(CN)4] (1) and its isotope substituted analogues Fe(pyridine-D5)2[Ni(CN)4] (2) and Fe(pyridine-15N)2[Ni(CN)4] (3) have been synthesised and the isotope effect on the thermal spin-crossover behaviour has been studied using magnetic susceptibility, 57Fe Mössbauer, Raman and calorimetric techniques. All these methods confirmed that upon isotope substitution—contrary to previous observations—the spin transition temperature shifted downwards from 202 to 194 K. The theoretical analysis of spectroscopic data has revealed that this shift was a result of a subtle balance between different vibrational and electronic factors.

Back to tab navigation

Publication details

The article was received on 13 Dec 2002, accepted on 19 Feb 2003 and first published on 10 Mar 2003


Article type: Paper
DOI: 10.1039/B212312F
Citation: Phys. Chem. Chem. Phys., 2003,5, 1682-1688
  •   Request permissions

    Unexpected isotope effect on the spin transition of the coordination polymer Fe(C5H5N)2[Ni(CN)4]

    K. Hosoya, T. Kitazawa, M. Takahashi, M. Takeda, J. Meunier, G. Molnár and A. Bousseksou, Phys. Chem. Chem. Phys., 2003, 5, 1682
    DOI: 10.1039/B212312F

Search articles by author

Spotlight

Advertisements