Evaluation of a Silyene Divalent Lanthanide Interaction in the Metallocene Complex, (C5Me5)2Sm[SiNtBuCHCHNtBu]
An R2Si: →Ln(II) complex Summary: (C5Me5)2Sm[SiNtBuCHCHNtBu], 1, has been synthesized in 90% yield by reaction of (C5Me5)2Sm with 1,3-di-tert-butyl-2,3-dihydro-1H-1,3,2-diazasilol-2-ylidene in toluene. Structural features of the (C5Me5)2Sm part of 1 are similar to those in (C5Me5)2Sm(THF). The silylene ligand is located asymmetrically in the metallocene wedge with one tert-butyl group (Sm−C(Me) = 3.396(4) Å) much closer to the metal than the other (Sm−C(Me) = 4.741(4) Å). The Si−Sm(II) distance is 3.1910(1) Å.
Evans, William J.; Perotti, Jeremy M.; Ziller, Joseph W.; Moser, Daniel F.; and West, Robert, "Evaluation of a Silyene Divalent Lanthanide Interaction in the Metallocene Complex, (C5Me5)2Sm[SiNtBuCHCHNtBu]" (2003). Chemistry and Physics Faculty Articles. 99.