The Synthesis and Characterization of Two-Dimensional Ferromagnetic Extended Structures Containing High-Spin (S = 5/2) and Low-Spin (S = 1/2) Iron(III) Bridged by Cyanide Groups

Nazzareno Re, Raffaella Crescenzi, Carlo Floriani, Hitoshi Miyasaka, Naohide Matsumoto

Research output: Contribution to journal › Article › peer-review

87 Citations (Scopus)

Abstract

The reaction of [Fe(salen)]+ and {A3[Fe(CN)6]} (A = NEt4, K), depending on the countercation A+ and on the reaction solvent, led to [(NEt4){Fe(salen)}2{Fe(CN)6}]n, 4, and [{Fe(salen)}3{Fe(CN)6}(MeOH)2] n·3nH2O, 5 [NEt4 = tetraethylammonium cation, salen = N, N′-ethylenebis(salicylideneiminato) dianion], displaying a similar extended 2D structure. Complex 5 crystallizes in the monoclinic, space group P21/n, a = 13.495(7) Å, b = 14.220(9) Å, c = 33.137(5) Å, β = 96.74(2)°, and Z = 4. It assumes a two-dimensional network layer structure consisting of cyclic octanuclear [-Fe(h.s.)-NC-Fe(l.s.)-CN-]4 units with [Fe(salen)(MeOH)2]+ located between the interlayer as a countercation. Complex 4 exhibits a metamagnetic behavior with a field-induced transition from an antiferromagnetic to a ferromagnetic-like state and a Neel temperature of ca. 6 K.

Original languageEnglish
Pages (from-to)2717-2722
Number of pages6
JournalInorganic chemistry
Volume37
Issue number11
Publication statusPublished - 1998 Dec 1
Externally publishedYes

ASJC Scopus subject areas

  • Physical and Theoretical Chemistry
  • Inorganic Chemistry

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