Synthesis, hydrogen-bonded 1D structure, and abrupt spin transition between high-spin (HS) and an ordered [HS-HS-HS-LS] of a mononuclear iron(III) complex [FeIII(Him)2(4-MeOhapen)]CF3SO3 (Him = imidazole, 4-MeOhapen = N,N′-bis(2-oxy-4-methoxyacetophenylidene)ethylenediamine)

Kyohei Miyano, Takahiro Nishida, Hiromasa Ono, Daisuke Hamada, Takeshi Fujinami, Naohide Matsumoto, Yukinari Sunatsuki

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3 Citations (Scopus)

Abstract

A SCO iron(III) complex [FeIII(Him)2(4MeOhapen)]CF3SO3 was synthesized, where Him = imidazole and 4-MeOhapen = N,N′-bis(2-oxy-4-methoxyacetophenylidene)ethylenediamine. FeIII ion has an octahedral coordination geometry with N2O2 donor atoms of the equatorial tetradentate ligand (4-MeOhapen) and two nitrogen atoms of two imidazoles (Him) at the axial positions. The adjacent cations are bridged by CF3SO3 - ion through NH⋯O hydrogen bonds between Him and CF3SO3 - to give a one-dimensional chain structure {[FeIII(Him)2(4MeO-hapen)]CF3SO3}1. The magnetic susceptibility measurements showed that complex exhibits an abrupt spin transition between a single HS phase and a symmetry-breaking [HS-HS-HS-LS] phase and another transition around 80 K. The single-crystal X-ray analyses at 296 and 150 K revealed the structures at a single HS and [HS-HS-HS-LS] states.

Original languageEnglish
Pages (from-to)49-54
Number of pages6
JournalInorganica Chimica Acta
Volume439
DOIs
Publication statusPublished - Jan 1 2016

Fingerprint

ethylenediamine
imidazoles
Hydrogen
Iron
Ions
Imidazoles
iron
Atoms
hydrogen
synthesis
Magnetic susceptibility
Cations
Hydrogen bonds
Nitrogen
Positive ions
Ligands
Single crystals
X rays
Geometry
imidazole

Keywords

  • 1D structure
  • Hydrogen bonds
  • Imidazole
  • Iron(III)
  • NO Schiff-base ligand
  • Spin crossover

ASJC Scopus subject areas

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

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title = "Synthesis, hydrogen-bonded 1D structure, and abrupt spin transition between high-spin (HS) and an ordered [HS-HS-HS-LS] of a mononuclear iron(III) complex [FeIII(Him)2(4-MeOhapen)]CF3SO3 (Him = imidazole, 4-MeOhapen = N,N′-bis(2-oxy-4-methoxyacetophenylidene)ethylenediamine)",
abstract = "A SCO iron(III) complex [FeIII(Him)2(4MeOhapen)]CF3SO3 was synthesized, where Him = imidazole and 4-MeOhapen = N,N′-bis(2-oxy-4-methoxyacetophenylidene)ethylenediamine. FeIII ion has an octahedral coordination geometry with N2O2 donor atoms of the equatorial tetradentate ligand (4-MeOhapen) and two nitrogen atoms of two imidazoles (Him) at the axial positions. The adjacent cations are bridged by CF3SO3 - ion through NH⋯O hydrogen bonds between Him and CF3SO3 - to give a one-dimensional chain structure {[FeIII(Him)2(4MeO-hapen)]CF3SO3}1. The magnetic susceptibility measurements showed that complex exhibits an abrupt spin transition between a single HS phase and a symmetry-breaking [HS-HS-HS-LS] phase and another transition around 80 K. The single-crystal X-ray analyses at 296 and 150 K revealed the structures at a single HS and [HS-HS-HS-LS] states.",
keywords = "1D structure, Hydrogen bonds, Imidazole, Iron(III), NO Schiff-base ligand, Spin crossover",
author = "Kyohei Miyano and Takahiro Nishida and Hiromasa Ono and Daisuke Hamada and Takeshi Fujinami and Naohide Matsumoto and Yukinari Sunatsuki",
year = "2016",
month = "1",
day = "1",
doi = "10.1016/j.ica.2015.09.031",
language = "English",
volume = "439",
pages = "49--54",
journal = "Inorganica Chimica Acta",
issn = "0020-1693",
publisher = "Elsevier BV",

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TY - JOUR

T1 - Synthesis, hydrogen-bonded 1D structure, and abrupt spin transition between high-spin (HS) and an ordered [HS-HS-HS-LS] of a mononuclear iron(III) complex [FeIII(Him)2(4-MeOhapen)]CF3SO3 (Him = imidazole, 4-MeOhapen = N,N′-bis(2-oxy-4-methoxyacetophenylidene)ethylenediamine)

AU - Miyano, Kyohei

AU - Nishida, Takahiro

AU - Ono, Hiromasa

AU - Hamada, Daisuke

AU - Fujinami, Takeshi

AU - Matsumoto, Naohide

AU - Sunatsuki, Yukinari

PY - 2016/1/1

Y1 - 2016/1/1

N2 - A SCO iron(III) complex [FeIII(Him)2(4MeOhapen)]CF3SO3 was synthesized, where Him = imidazole and 4-MeOhapen = N,N′-bis(2-oxy-4-methoxyacetophenylidene)ethylenediamine. FeIII ion has an octahedral coordination geometry with N2O2 donor atoms of the equatorial tetradentate ligand (4-MeOhapen) and two nitrogen atoms of two imidazoles (Him) at the axial positions. The adjacent cations are bridged by CF3SO3 - ion through NH⋯O hydrogen bonds between Him and CF3SO3 - to give a one-dimensional chain structure {[FeIII(Him)2(4MeO-hapen)]CF3SO3}1. The magnetic susceptibility measurements showed that complex exhibits an abrupt spin transition between a single HS phase and a symmetry-breaking [HS-HS-HS-LS] phase and another transition around 80 K. The single-crystal X-ray analyses at 296 and 150 K revealed the structures at a single HS and [HS-HS-HS-LS] states.

AB - A SCO iron(III) complex [FeIII(Him)2(4MeOhapen)]CF3SO3 was synthesized, where Him = imidazole and 4-MeOhapen = N,N′-bis(2-oxy-4-methoxyacetophenylidene)ethylenediamine. FeIII ion has an octahedral coordination geometry with N2O2 donor atoms of the equatorial tetradentate ligand (4-MeOhapen) and two nitrogen atoms of two imidazoles (Him) at the axial positions. The adjacent cations are bridged by CF3SO3 - ion through NH⋯O hydrogen bonds between Him and CF3SO3 - to give a one-dimensional chain structure {[FeIII(Him)2(4MeO-hapen)]CF3SO3}1. The magnetic susceptibility measurements showed that complex exhibits an abrupt spin transition between a single HS phase and a symmetry-breaking [HS-HS-HS-LS] phase and another transition around 80 K. The single-crystal X-ray analyses at 296 and 150 K revealed the structures at a single HS and [HS-HS-HS-LS] states.

KW - 1D structure

KW - Hydrogen bonds

KW - Imidazole

KW - Iron(III)

KW - NO Schiff-base ligand

KW - Spin crossover

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JO - Inorganica Chimica Acta

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