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Solution-State Spin Crossover in a Family of [Fe(L)2(CH3CN)2](BF4)2 Complexes

Authors :
Rosanna J. Archer
Paul E. Kruger
Corine Mathonière
Benjamin H. Wilson
Rodolphe Clérac
Hayley S. Scott
MacDiarmid Institute for Advanced Materials and Nanotechnology
University of Canterbury [Christchurch]
Centre de Recherche Paul Pascal (CRPP)
Université de Bordeaux (UB)-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB)
Université de Bordeaux (UB)-Institut Polytechnique de Bordeaux-Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)
Source :
Magnetochemistry; Volume 5; Issue 2; Pages: 22, Magnetochemistry, Magnetochemistry, MDPI, 2019, 5 (2), 22 (13 p.). ⟨10.3390/magnetochemistry5020022⟩, Magnetochemistry, Vol 5, Iss 2, p 22 (2019)
Publication Year :
2019
Publisher :
MDPI, 2019.

Abstract

We report herein on five new Fe(II) complexes of general formula [Fe(L)2(NCCH3)2](BF4)2•xCH3CN (L = substituted 2-pyridylimine-based ligands). The influence of proximally located electron withdrawing groups (e.g., NO2, CN, CF3, Cl, Br) bound to coordinated pyridylimine ligands has been studied for the effect on spin crossover in their Fe(II) complexes. Variable-temperature UV-visible spectroscopic studies performed on complexes with more strongly electronegative ligand substituents revealed spin crossover (SCO) in the solution, and thermodynamic parameters associated with the spin crossover were estimated.

Details

Language :
English
ISSN :
23127481
Database :
OpenAIRE
Journal :
Magnetochemistry; Volume 5; Issue 2; Pages: 22, Magnetochemistry, Magnetochemistry, MDPI, 2019, 5 (2), 22 (13 p.). ⟨10.3390/magnetochemistry5020022⟩, Magnetochemistry, Vol 5, Iss 2, p 22 (2019)
Accession number :
edsair.doi.dedup.....cd4db97faa75cee29c2ac323443fd955
Full Text :
https://doi.org/10.3390/magnetochemistry5020022⟩