Nonclassical Organolanthanoid Metal Chemistry:  [K([18]-crown-6)(η<sup>2</sup>-PhMe)<sub>2</sub>]X (X = [(LnCp<sup>t</sup><sub>3</sub>)<sub>2</sub>(μ-H)], [(LnCp‘ ‘<sub>2</sub>)<sub>2</sub>(μ-η<sup>6</sup>:η<sup>6</sup>-PhMe)]) from [LnCp<sup>x</sup><sub>3</sub>], K, and [18]-crown-6 in Toluene (Ln = La, Ce; Cp<sup>t</sup> = η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub>SiMe<sub>2</sub>Bu<sup>t</sup>; Cp‘ ‘ = η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>(SiMe<sub>3</sub>)<sub>2</sub>-1,3) Yurii K. Gun'ko Peter B. Hitchcock Michael F. Lappert 10.1021/om0001873.s001 https://acs.figshare.com/articles/dataset/Nonclassical_Organolanthanoid_Metal_Chemistry_K_18_-crown-6_sup_2_sup_-PhMe_sub_2_sub_X_X_LnCp_sup_t_sup_sub_3_sub_sub_2_sub_-H_LnCp__sub_2_sub_sub_2_sub_-_sup_6_sup_sup_6_sup_-PhMe_from_LnCp_sup_x_sup_sub_3_sub_K_and_18_-crown-6_in_Toluene_Ln_La_Ce_Cp_su/3762360 Treatment of [LnCp<sup>t</sup><sub>3</sub>] or [LnCp‘ ‘<sub>3</sub>] with potassium and [18]-crown-6 in toluene at ambient temperature yielded two quite different crystalline potassium salts:  [K([18]-crown-6)(η<sup>2</sup>-PhMe)<sub>2</sub>]X (X = [(LnCp<sup>t</sup><sub>3</sub>)<sub>2</sub>(μ-H)], [(LnCp‘ ‘<sub>2</sub>)<sub>2</sub>(μ-η<sup>6</sup>:η<sup>6</sup>-PhMe)]; Ln = La, Ce; Cp<sup>t</sup> = η<sup>5</sup>-C<sub>5</sub>H<sub>4</sub>SiMe<sub>2</sub>Bu<sup>t</sup>; Cp‘ ‘ = η<sup>5</sup>-C<sub>5</sub>H<sub>3</sub>(SiMe<sub>3</sub>)<sub>2</sub>-1,3). 2000-06-17 00:00:00 PhMe LnCp t 3 η 5 C 5 H 4 SiMe 2 Bu t C 5 H 3 Cp t SiMe 3