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

doi:10.1016/j.physb.2009.10.029

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 journal › Article › peer-review

16 Citations (Scopus)

Abstract

A novel Fe(III) spin crossover (SCO) complex with a linear I₃ anion, [Fe(qsal)₂]I₃ 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 language	English
Pages (from-to)	S65-S68
Journal	Physica B: Condensed Matter
Volume	405
Issue number	11 SUPPL.
DOIs	https://doi.org/10.1016/j.physb.2009.10.029
Publication status	Published - 2010 Jun 1
Externally published	Yes

Keywords

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

ASJC Scopus subject areas

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

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

abstract = "A novel Fe(III) spin crossover (SCO) complex with a linear I3 anion, [Fe(qsal)2]I3 1 [qsalH=N-(8-quinolyl)- salicylaldimine], was prepared and characterized by the magnetic susceptibilities and crystal structures. 1 exhibited a gradual SCO conversion (TSCO=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.",

keywords = "Cooperativity, Crystal structure, Fe(III) complex, Intermolecuar interaction, Pressure effect, Spin crossover",

author = "Kazuyuki Takahashi and Tetsuya Sato and Hatsumi Mori and Hiroyuki Tajima and Osamu Sato",

year = "2010",

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T1 - Correlation between the magnetic behaviors and dimensionality of intermolecular interactions in Fe(III) spin crossover compounds

AU - Takahashi, Kazuyuki

AU - Sato, Tetsuya

AU - Mori, Hatsumi

AU - Tajima, Hiroyuki

AU - Sato, Osamu

PY - 2010/6/1

Y1 - 2010/6/1

N2 - A novel Fe(III) spin crossover (SCO) complex with a linear I3 anion, [Fe(qsal)2]I3 1 [qsalH=N-(8-quinolyl)- salicylaldimine], was prepared and characterized by the magnetic susceptibilities and crystal structures. 1 exhibited a gradual SCO conversion (TSCO=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.

AB - A novel Fe(III) spin crossover (SCO) complex with a linear I3 anion, [Fe(qsal)2]I3 1 [qsalH=N-(8-quinolyl)- salicylaldimine], was prepared and characterized by the magnetic susceptibilities and crystal structures. 1 exhibited a gradual SCO conversion (TSCO=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.

KW - Cooperativity

KW - Crystal structure

KW - Fe(III) complex

KW - Intermolecuar interaction

KW - Pressure effect

KW - Spin crossover

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