The coordination of 18-crown-6 to Ce[N(SiMe3)PhF]3 (PhF = pentafluorophenyl) results in a κ2-18-crown-6 complex, a unique coordination mode for an f-block cation. The κ2-18-crown-6 complex showed exchange with free 18-crown-6 in solution and facile rearrangement of the crown ligand into a κ6-18-crown-6 cerium complex.
18-crown-6 与 Ce[N(SiMe3)PhF]3 (PhF =
五氟苯基)的配位产生了δ2-18-crown-6 复合物,这是一种独特的 f 块阳离子配位模式。δ2-18-crown-6配合物在溶液中与游离的18-crown-6发生了交换,冠
配体容易重排为δ6-18-crown-6
铈配合物。