Spin state switching in 2,6-bis(pyrazol-3-yl)pyridine (3-bpp) based Fe(II) complexes

Gavin A. Craig, Olivier Roubeau, Guillem Aromí

Research output: Contribution to journalArticle

74 Citations (Scopus)

Abstract

The area of spin crossover (SCO) attracts interest both on a fundamental level and in terms of potential applications for compounds displaying this phenomenon. A few families of Fe(II) complexes have become paramount for the advance of this topic, for example, compounds based on bis-pyrazolylpyridine (bpp) ligands. Here, we describe the versatile and rich SCO behaviour shown by the group of SCO compounds based on the related ligand 2,6-bis(pyrazol-3-yl)pyridine (L1) and its recently developed derivatives. The use of derivatives of L1 represents an advance, as prior to 2011, no functionalised L1-type ligands had been employed to obtain SCO systems. These compounds are highly sensitive to the anion and degree of solvation within their lattices, many of which have been observed through single crystal X-ray diffraction studies. The structural data that have been published in recent years has permitted a magneto-structural correlation to be described, which proves to nicely complement the properties shown by the family based on L1's regio-isomer, 2,6-bis(pyrazol-1-yl)pyridine.
LanguageEnglish
Pages13-31
Number of pages19
JournalCoordination Chemistry Reviews
Volume269
DOIs
Publication statusPublished - 20 Feb 2014

Fingerprint

Pyridine
pyridines
crossovers
Ligands
ligands
Derivatives
Solvation
Isomers
Anions
Negative ions
Single crystals
complement
solvation
X ray diffraction
isomers
anions
2,6-bis(pyrazol-3-yl)pyridine
single crystals
diffraction
x rays

Keywords

  • spin crossover
  • Fe(II)
  • 2,6-Bis(pyrazol-3-yl)pyridine
  • spin switching
  • magneto-structural correlations

Cite this

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Spin state switching in 2,6-bis(pyrazol-3-yl)pyridine (3-bpp) based Fe(II) complexes. / Craig, Gavin A.; Roubeau, Olivier; Aromí, Guillem.

In: Coordination Chemistry Reviews , Vol. 269, 20.02.2014, p. 13-31.

Research output: Contribution to journalArticle

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