Salts of the Cation [(Cp*Cr)4(μ-Cl)3(μ-CH2)3AlMe]+ with the Oxo- and Methine-Based Aluminum Anions [(Me2Al)2(μ-CH)(AlCl2Me)2]- and [(Me2Al)(μ3-O)(AlCl2Me)(AlMe2Cl)]-
摘要:
Reactions of (Cp*CrCl2)(2) (1) and Cp*Cr(HNP-i-Pr-3)Cl-2 (3) with excess AlMe3 gave [(Cp*Cr)(4)(mu-Cl)(3)(mu-CH2)(3)AlMe][(Me2Al)(mu(3)-O)(AlCl2Me)(AlMe2Cl)] (2) and [(CP*Cr)(4)(mu-Cl)(3)(mu-CH2)(3)AlMe][(Me2Al)(2)(mu-CH)(AlCl2Me)(2)] (4), respectively. Although the cations are the same, the former salt has a Al3O-based anion, whereas the latter contains an Al-4-methine anion.