Correlation between the magnetic behaviors and dimensionality of intermolecular interactions in Fe(III) spin crossover compounds

Kazuyuki Takahashi, Tetsuya Sato, Hatsumi Mori, Hiroyuki Tajima, Osamu Sato

Research output: Contribution to journalArticle

16 Citations (Scopus)

Abstract

A novel Fe(III) spin crossover (SCO) complex with a linear I 3 anion, [Fe(qsal) 2]I 3 1 [qsalH=N-(8-quinolyl)- salicylaldimine], was prepared and characterized by the magnetic susceptibilities and crystal structures. 1 exhibited a gradual SCO conversion (T SCO=ca.240K). The crystal structural analyses for 1 at 50 and 293 K revealed that the two-dimensional (2D) network was constructed by intermolecular π-π interactions between π-ligands of an Fe(III) cation. Since the related complex, [Fe(qsal) 2]NCS 2, was known to show a cooperative SCO transition, the crystal structure of 2 at 293K was also determined. 2 possessed 2D SCO cation arrangement similar to 1, whereas potential π-π interactions between 2D networks in 2 existed. The dimensionality of intermolecular interactions was closely related to SCO behaviors and pressure effects on SCO compounds.

Original languageEnglish
JournalPhysica B: Condensed Matter
Volume405
Issue number11 SUPPL.
DOIs
Publication statusPublished - 2010 Jun 1
Externally publishedYes

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Cations
crossovers
Crystal structure
Positive ions
Pressure effects
Magnetic susceptibility
Anions
Negative ions
Ligands
interactions
Crystals
cations
crystal structure
pressure effects
anions
magnetic permeability
ligands
crystals

Keywords

  • Cooperativity
  • Crystal structure
  • Fe(III) complex
  • Intermolecuar interaction
  • Pressure effect
  • Spin crossover

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Correlation between the magnetic behaviors and dimensionality of intermolecular interactions in Fe(III) spin crossover compounds. / Takahashi, Kazuyuki; Sato, Tetsuya; Mori, Hatsumi; Tajima, Hiroyuki; Sato, Osamu.

In: Physica B: Condensed Matter, Vol. 405, No. 11 SUPPL., 01.06.2010.

Research output: Contribution to journalArticle

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AU - Mori, Hatsumi

AU - Tajima, Hiroyuki

AU - Sato, Osamu

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