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Article Dans Une Revue Magnetochemistry Année : 2019

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

Résumé

We report herein on five new Fe(II) complexes of general formula [Fe(L)2(NCCH3)2](BF4)2xCH3CN (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.

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Matériaux
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Dates et versions

hal-02171591 , version 1 (20-07-2020)

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Benjamin Wilson, Hayley Scott, Rosanna Archer, Corine Mathonière, Rodolphe Clérac, et al.. Solution-State Spin Crossover in a Family of [Fe(L)2(CH3CN)2](BF4)2 Complexes. Magnetochemistry, 2019, 5 (2), 22 (13 p.). ⟨10.3390/magnetochemistry5020022⟩. ⟨hal-02171591⟩
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