Triple-decker main group cationsElectronic supplementary information (ESI) available: summary of theoretical data. See http://www.rsc.org/suppdata/cc/b0/b005425i/
Abstract
The syntheses of the first main group triple-decker cations are described, namely, [(η5-C5Me5)Sn(μ-η5- C5Me5)Sn(η5-C5Me5 )][Ga(C6F5)4] and [(η6-C7H8)In(μ-η5-C 5Me5)In(η6-C7H8 )][(C6F5)3BO(H)B(C6F 5)3], both of which have been characterized by X-ray crystallography; the former was prepared by the reaction of Sn(η5-C5Me5)2 with Ga(C6F5)3, while the latter was prepared by treatment of [In(η5-C5Me5)]6 with an equimolar mixture of B(C6F5)3 and H2O·B(C6F5)3.