YbCl3 with successively 2KL or 2KLâ² and then >2Li in thf yields crystalline [YbL(μ-Li(thf)}2] 1 or [YbLâ²(μ-Li(thf)}2].thf 2, characterised by X-ray, multinuclear NMR spectral and VT magnetic susceptibility data; 1 and 2 are best formulated as Yb(II) complexes having dianionic L2â or Lâ²2â ligands, L or Lâ² = N(SiMe3)C(R)}2CH (R = Ph or C6H4Ph-4).
YbCl3 与 2KL 或 2KLâ²,然后大于 2Li 的 thf 生成晶体 [YbL(δ-Li(thf)}2] 1 或 [YbLâ²(δ-Li(thf)}2]。1 和 2 最适合配制成具有二离子
L2â 或 Lâ²2â
配体的 Yb(II) 复合物,L 或 Lâ² = N(SiMe3)C(R)}2CH (R = Ph 或 C6H4Ph-4)。