Non-innocence of β-diketiminato ligands

• β-Diketiminato zinc complexes react with elemental sulfur with oxidation of the γ-C atom of the ligand.
• The β-diketiminato ligands show a non-innocence character under these reaction conditions.
• 1 and the byproducts were characterized by NMR and IR spectroscopy, and single crystal X-ray diffraction.
• 1 represents only the second structurally characterized complex containing a thio-β-ketiminate ligand.

The homoleptic thio-β-ketiminate zinc complex [MesNC(Me)CH{C(Me)NMes}S]2Zn (1) was obtained from reactions of elemental sulfur with the β-diketiminato zinc complexes [CH{C(Me)NMes}2]ZnMe, [CH{C(Me)NMes}2]2Zn2 and [[CH{C(Me)NMes}2]Zn-TePh]2. 1 and the byproducts were characterized by multinuclear NMR (1H, 13C, 125Te) and IR spectroscopy, elemental analyses as well as by single crystal X-ray diffraction.

β-Diketiminato zinc complexes react with elemental sulfur with oxidation of the γ-C atom of the β-diketiminato ligand and subsequent formation of the homoleptic thio-β-ketiminate zinc complex [MesNC(Me)CH{C(Me)NMes}S]2Zn (1). 1 and the byproducts were characterized by multinuclear NMR and IR spectroscopy and by single crystal X-ray diffraction.Figure optionsDownload as PowerPoint slide