Diiminophosphinate des Lithiums, Samariums und Ytterbiums: Molekuelstrukturen von Li(THF)2 und <Ph2P(NSiMe3)2Sm(μ-I)2Li(THF)2

Article abstract of DOI:10.1016/0022-328X(91)86331-J

The molecular structure of Li(THF)2 (2) has been determined by an X-ray diffraction study.A four-membered LiNPN ring forms the central unit of the monomeric molecule.YbI2 reacts with two equivalents of Li (1) to give the novel ytterbium(II)diiminophosphinate 2Yb(THF)2 (3).A similar reaction of 1 with SmI2 affords the samarium(III) derivative 2Sm(μ-I)2Li(THF)2 (4) whose structure has also been determined by an X-ray diffraction study.