Magnetic and magneto-optical properties of two-dimensional cyanide-bridged Fe(1-x)IIICoxIIINiII solid solutions having fragmented magnetic domain

Masaaki Ohba, Takashi Iwamoto, Wakako Kaneko, Susumu Kitagawa, Hisashi Okawa

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2 Citations (Scopus)

Abstract

Two-dimensional cyanide-bridged Fe(1-x)IIICoxIIINiII solid solutions, {[Ni(1,1-dmen)2]2[Fe(1 - x)Co x(CN)6]}tfs·nH2O (x = 0.0, 0.12, 0.23, 0.35, 0.47, 0.54, 0.57, 0.64, 0.72, 0.81, 1.0; 1,1-dmen = 1,1- dimethylethylenediamine, tfs- = trifluoromethanesulfonate ion), have been prepared. All compounds form a 2-D grid structure extended by the M-CN-Ni linkages. Compounds with x < 0.64 show a ferromagnetic ordering above 2 K based on a ferromagnetic interaction between low-spin FeIII and NiII. MCD spectra show a strong Faraday ellipticity at ∼470 nm associated with the LMCT band of the Fe-CN. Their phase transition temperature and intensity of Faraday ellipticity decrease with increasing x value due to fragmentation of magnetic domain by diamagnetic [Co(CN)6] 3- units.

Original languageEnglish
Pages (from-to)2839-2843
Number of pages5
JournalPolyhedron
Volume24
Issue number16-17
DOIs
Publication statusPublished - Nov 17 2005
Externally publishedYes

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All Science Journal Classification (ASJC) codes

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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