The metathesis reaction of anhydrous LnCl 3 (Ln = Y, Dy, Er, Sm, Yb) with the potassium salt KL [L = 2,4,6-Me 3 C 6 H 2 -NC(Me)CHC(Me)N-2,4,6-Me 3 C 6 H 2 ], a mesityl-substituted -diketiminate, is described. Dinuclear complexes with an unusual triple chlorido bridge in the molecule [LClLn(μ-Cl) 3 LnL(THF)] [Ln = Y (1a) and Dy (1b)] were obtained by recrystallization from a mixture of non-polar solvents (toluene/n-pentane) in low [a] G. A. Razuvaev

Oxidation of Ln(ii) o-amidophenolates with o-iminoquinone leads to ligand mixed-valent o-iminosemiquinonato-o-amidophenolato complexes of Ln(iii).

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