To Bond or Not to Bond: Metal-Metal Interaction in Heterobimetallic Rare-Earth Metal-Silver Complexes.

The reaction of 2,4-Bu-6-(PPh)PhOH (HOAr) with silver(I) triflate in a 3:1 molar ratio gave the mononuclear coinage metal complex (HOAr-κ)AgOTf (). Treatment of HOAr with Ln[N(SiMe)] (Ln = La, Sm, Y, Yb) in a 3:1 molar ratio yielded the mononuclear rare-earth metal complexes Ln(OAr-κ,) (). The heterobimetallic rare-earth metal-silver complexes Ln(OTf)(μ-OAr-1κ,2κ)Ag () were prepared from monometallic precursors by reactions of equimolar amounts of with Ln[N(SiMe)] or with silver(I) triflate, respectively.