Iron(II) Complexes Featuring Bidentate N‑Heterocyclic Carbene–Silyl Ligands: Synthesis and Characterization
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https://figshare.com/articles/dataset/Iron_II_Complexes_Featuring_Bidentate_N_Heterocyclic_Carbene_Silyl_Ligands_Synthesis_and_Characterization/2339383
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资源简介：
Two silyl donor containing N-heterocyclic
carbene iron(II) complexes,
[(CSi)Fe(IMes′)] (CSi = bidentate silyl donor containing N-heterocyclic
carbene ligand, IMes′ = cyclometalated IMes ligand, IMes =
1,3-dimesitylimidazol-2-ylidene) have been synthesized by sequential
iron-mediated benzylic C–H bond activation and silylation reactions
starting from [(IMes)2FeCl2]. Single-crystal
X-ray diffraction studies revealed that the [(CSi)Fe(IMes′)]
complexes have seesaw-type FeSiC3 cores. Solution magnetic
susceptibility measurements, UV–vis–near-IR spectra,
and bond distance data from X-ray diffraction studies corroborate
an intermediate spin state, S = 1, for these unique
iron(II) complexes. DFT calculations revealed that the bidentate CSi
chelates are essentially σ-donating ligands in the iron(II)
compounds.
创建时间：
2016-02-18
