Hh. Karsch et al., HIGH PHOSPHINE COORDINATION NUMBERS OF THE LANTHANOIDS - SIGMA-TYPE AND PI-TYPE COORDINATION IN [SM(CH(PME(2))(2))(3)](2), Journal of the Chemical Society, Chemical Communications, (4), 1994, pp. 505-506
The dimeric title complex, obtained from [Sm(O3SCF3)(3)] and [LiCH(PMe
(2))(2)], contains four pi-type and two bridging sigma-type coordinate
d ligands.