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- W4223572828 abstract "Paddlewheel-type binuclear complexes featuring metal-metal bonding have been the subject of widespread interest due to fundamental concern in their electronic structures and potential applications. Here, we explore the molecular and electronic structures of diiron(II,II) complexes with N,N'-diarylformamidinate ligands. While a paddlewheel-type diiron(II,II) complex with N,N'-diphenylformamidinate ligands (DPhF) exhibits the centrosymmetric [Fe2 (μ-DPhF)4 ] structure, a minor alteration in the ligand system, i. e., switching from phenyl to p-tolyl N-substituted formamidinate ligand (DTolF), resulted in the isolation of an unprecedented non-centrosymmetric [Fe(μ-DTolF)3 Fe(κ2 -DTolF)] complex. Both complexes were characterized using single-crystal X-ray diffraction, magnetic measurements, 57 Fe Mössbauer spectroscopy, and cyclic voltammetry along with high-level ab-initio calculations. The results provide a new view on a range of factors controlling the ground-state electronic configuration and structural diversity of homoleptic diiron(II,II) complexes. Model calculations determined that the Mayer bond orders for Fe-Fe interactions are significantly lower than 1 and equal to 0.15 and 0.28 for [Fe2 (μ-DPhF)4 ] and [Fe(μ-DTolF)3 Fe(κ2 -DTolF)], respectively." @default.
- W4223572828 created "2022-04-15" @default.
- W4223572828 creator A5012427199 @default.
- W4223572828 creator A5030446941 @default.
- W4223572828 creator A5034444968 @default.
- W4223572828 creator A5035536111 @default.
- W4223572828 creator A5047310480 @default.
- W4223572828 creator A5052135845 @default.
- W4223572828 creator A5056995811 @default.
- W4223572828 creator A5062360888 @default.
- W4223572828 creator A5067823437 @default.
- W4223572828 date "2022-06-02" @default.
- W4223572828 modified "2023-10-17" @default.
- W4223572828 title "A New Look at Molecular and Electronic Structure of Homoleptic Diiron(II,II) Complexes with <i>N,N</i>‐Bidentate Ligands: Combined Experimental and Theoretical Study" @default.
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