Cp2Yb(NO2) · \\{THF\\} (1) (Cp = C5H5) was synthesized by the reaction of Cp2YbCl and NaNO2 (1:1 molar ratio) in \\{THF\\} at room temperature. It crystallizes in space group Pnma with unit cell dimensions a = 13.5530(3), b = 11.8150(2), c = 9.2790(2) Å, Z = ...