Three-Coordinate Pd(0) with Rare-Earth Metalloligands: Synergetic CO Activation and Double P–C Bond Cleavage-Formation Reactions

Metalation of β-diketiminato rare-earth metal complexes LnacnacLn(PhNCH2PPh2)2 (Ln = Y, Yb, Lu) with (COD)Pd(CH2SiMe3)2 afforded three-coordinate Pd(0) complexes supported by two sterically less bulky phosphines and a Pd → Ln dative interaction. The Pd(0) center is prone to ligation with isonitrile and CO; in the latter case, the insertion of a second CO with the Y–N bond was assisted via a precoordination of CO on the Pd(0) center, which led to...