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The reaction of anhydrous YbCl3 with LiNPri2 in 1:3 molar ratio gave the homo- leptic lanthanide amide ate complex Yb(C6H14N)4Li(C4H8O). The crystal structure was determined by X-ray diffraction and the following crystallographic data were obtained: C28H64N4OYbLi, Mg = 652.82, monoclinic, P21/c (#14), a = 15.239(3), b = 21.502(6), c = 21.288(4) ? b = 93.18(2), V = 6964(2) 3, Z = 8, Dc = 1.245 g/cm3, F(000) = 2728 and m(MoKa) = 27.08 cm-1. The final R and Rw are 0.044 and 0.053 for 6765 observed reflections with I > 3.00s(I), respectively. The ytterbium atom is bonded to two terminal amide ligands with the normal YbN distances of 2.171(6) and 2.174(7) ? and two bridging amide ligands with the YbN bonds about 0.1 ?longer than those of the formers, forming a distorted tetrahedral geometry.
The reaction of anhydrous YbCl3 with LiNPri2 in 1: 3 molar ratio gave the homo- leptic lanthanide amide ate complex Yb (C6H14N) 4Li (C4H8O). The crystal structure was determined by X-ray diffraction and the following crystallographic data were obtained: C28H64N4OYbLi , B = 21.502 (6), c = 21.288 (4)? B = 93.18 (2), V = 6964 (2) 3, Mg = 652.82, monoclinic, P21 / c , Z = 8, Dc = 1.245 g / cm3, F (000) = 2728 and m (MoKa) = 27.08 cm- 1. The final R and Rw are 0.044 and 0.053 for 6765 at reflections with I> 3.00s (I) , respectively. The ytterbium atom is bonded to two terminal amide ligands with the normal YbN distances of 2.171 (6) and 2.174 (7)? and two bridging amide ligands with the YbN bonds about 0.1? longer than those of the formers, forming a distorted tetrahedral geometry.