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Abstract:
Reaction of a new beta-diketiminato derivative of scandium, LScBr2 (L = Et2NCH2CH2NC(Me)CHC-(Me)NCH2CH2NEt2), with (C3H5)MgBr gave the unexpected scandium complex (LMgBr)(2)ScBr (1), whose structure was established by X-ray analysis, liquid and solid-state NMR, EPR, UV-vis, and magnetic measurements. Correlation of all results leads to the conclusion that the formal oxidation state of scandium in this complex is one (Sc(I)) having no unpaired electrons.