Monomeric f-element chemistry with sterically encumbered allyl ligands

Abstract A new class of allyl-lanthanide salts of the type [K(thf) 4 ][(C 3 H 3 (SiMe 3 ) 2 ) 3 LnI] (Ln=Ce, Pr, Nd, Gd, Tb, Dy, Er) have been prepared and isolated by reaction of three equivalents of the 1,3-bis(trimethylsilyl)allyl anion with LnI 3 . The neutral complex [C 3 H 3 (SiMe 3 ) 2 ] 3 Nd(thf) has been isolated from the reaction of the triflate complex Nd(O 3 SCF 3 ) 3 with three equivalents of the 1,3-bis(trimethylsilyl)allyl anion. These complexes have been structurally characterized using single crystal X-ray diffraction.