Syntheses of heterobi- and trinuclear complexes containing both a d me
tal (Mo, W, Ru, Rh) and an f metal (U-IV or Nd-III) in close proximity
but without a direct metal-metal bond were performed using anionic al
koxy-phosphines, HO(CH2)(n)PPh(2) (n = 0 or 1), cyclopentadienylphosph
ines, C(5)R(4)PR'(2) (R = H or Me; R' = Ph or Me), or neutral diphosph
ine monoxide, OPPh(2)CH(2)PPh(2), as heterodifunctional bridging ligan
ds.