R. Fischer, H. Görls, M. Friedrich
Apr 1, 2009
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Influential Citations
13
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Journal
Journal of Organometallic Chemistry
Abstract
Abstract The reaction of 2,4,6-trimethylphenylmagnesium bromide (MesMgBr) with manganese(II) chloride in an equimolar ratio yields [(thf) 4 Mg(μ-Cl) 2 Mn(Br)Mes] ( 1 ) with two bridging chloro ligands and a Mn–C bond length of 2.136(5) Ǻ. A molar ratio of 2:1 leads to a metathesis reaction and the formation of [Mes(thf)Mn(μ-Mes)] 2 ( 2 ) with two bridging mesityl groups. Whereas THF-free [MnMes 2 ] 3 crystallizes as a trimer from toluene solution, the reduced bulkiness of the phenyl groups in (MnPh 2 ) ∞ ( 3 ) leads to the formation of a chain-like structure with Mn–C bond lengths of 2.245(3) Ǻ.