Scandium Carbene Complexes: Synthesis of Mixed Alkyl, Amido, and Phosphido Derivatives

Different synthetic strategies are proposed to obtain a family of scandium carbene complexes. Starting either from scandium trichloride, scandium trisbenzyl, or the known scandium bis(diphenylthiophosphinoyl)­methanediide chloride complex 1, the homoleptic bis-carbene complex [Sc{C(PPh2S)2}2Li(THF)2...

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Bibliographic Details
Published in:Organometallics 2015-01, Vol.34 (1), p.63-72
Main Authors: Fustier, Marie, Le Goff, Xavier-Frédéric, Lutz, Martin, Slootweg, J. Chris, Mézailles, Nicolas
Format: Article
Language:English
Subjects:
Chemical Sciences
Material chemistry
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Summary:Different synthetic strategies are proposed to obtain a family of scandium carbene complexes. Starting either from scandium trichloride, scandium trisbenzyl, or the known scandium bis(diphenylthiophosphinoyl)­methanediide chloride complex 1, the homoleptic bis-carbene complex [Sc{C(PPh2S)2}2Li(THF)2] (3), the alkyl-carbene complex [Sc{C(PPh2S)2}­{CH(PPh2S)2}(THF)] (5), the amido-carbene complex [Sc{C(PPh2S)2}­{N(SiMe3)2}(THF)] (7), and the phosphido-carbene complex [Sc{C(PPh2S)2}­{P(SiMe3)2}(Py)2] (8) were obtained. The influence of the nature of the anionic ligand in trans position to the carbene ligand on the geometries at Sc was probed by DFT calculations in the case of complexes 7 and 8.
ISSN:0276-7333
1520-6041
DOI:10.1021/om500868a