부산대학교 도서관

[CpMgMe(Et2O)]2 was prepared by dissolving Cp2Mg and dimethylmagnesium together in diethyl ether. It reacted readily with diphenylamine, 3-amino-2,4-dimethylpentane, 2,6-diisopropylaniline, N-isopropylbenzylamine, and diisopropylamine in diethyl ether to afford the dimeric amido complexes [CpMg(NPh2)]2 (83%), [CpMg(NHCH(CH(CH3)2)2)]2 (75%), [CpMg(NHⁱPr2C6H3)]2 (61%), [CpMg(N(ⁱPr)(CH2Ph))]2 (62%), and [CpMg(NⁱPr2)]2 (81%) as colorless crystalline solids. Treatment of [CpMgMe(Et2O)]2 with N,N,N‘-trimethylethylenediamine in diethyl ether yielded dimeric [CpMg(MeNCH2CH2NMe2)]2 (76%). The reaction of [CpMgMe(Et2O)]2 with 2,5-bis(dimethylaminomethyl)pyrrole in diethyl ether led to the formation of the monomeric magnesium pyrrolato complex [CpMg(Et2O)(η²-Me2NCH2(C4H2N)CH2NMe2)] (70%). The X-ray crystal structures of [CpMg(NPh2)]2, [CpMg(NHCH(CH(CH3)2)2)]2, [CpMg(NHⁱPr2C6H3)]2, [CpMg(N(ⁱPr)(CH2Ph))]2, and [CpMg(Et2O)(η²-Me2NCH2(C4H2N)CH2NMe2)] were determined. In the solid state structures, [CpMg(NPh2)]2, [CpMg(NHCH(CH(CH3)2)2)]2, [CpMg(NHⁱPr2C6H3)]2, and [CpMg(N(ⁱPr)(CH2Ph))]2 contain one η⁵-cyclopentadienyl ligand per magnesium and almost perfectly square Mg2N2 cores. The complex [CpMg(Et2O)(η²-Me2NCH2(C4H2N)CH2NMe2)] contains one η⁵-cyclopentadienyl ligand, one diethyl ether ligand, and one η²-2,5-bis(dimethylaminomethyl)pyrrolato ligand.