Heterotrimetallic {Lnovpt} Complexes With Antiferromagnetic Ln-V Coupling And Magnetic Memory

The new PtVO(SOCR)(4)lantern complexes,1(R = CH3) and2(R = Ph) behave as neutral O-donor ligands to Ln(OR)(3)with Ln = Ce, Nd. Four heterotrimetallic complexes with linear {LnOVPt} units were prepared: [Ln(ODtbp)(3){PtVO(SOCR)(4)}] (Ln = Ce,3Ce(R = CH3),4Ce(R = Ph); Nd,3Nd(R = CH3),4Nd(R = Ph); ODtbp = 2,6-ditertbutylphenolate). Magnetic characterization confirms slow magnetic relaxation behaviour and suggests antiferromagnetic coupling across {Ln-OV} in all four complexes, with variations tunable as a function of Ln and R.