title: Impact of a rigid backbone on the structure of an agostically-stabilised dialkylstannylene: isolation of an unusual bridged stannyl-stannylene.
abstract: The reaction between the phosphine-borane-stabilised dicarbanion complex [1,2-C6H4{CHP(BH3)Cy2}2][Li(THF)n]2 and Cp2Sn gives the unusual stannyl-stannylene [[1,2-C6H4{CHP(BH3)Cy2}2]Sn]2·1½PhMe, in which one dicarbanion ligand chelates a tin centre, while the other bridges a tin-tin bond. The stannylene centre is stabilised by an agostic-type B-H···Sn interaction.
authors.affiliation: Main Group Chemistry Laboratories, School of Chemistry, Newcastle University, Newcastle upon Tyne NE1 7RU, UK. keith.izod@ncl.ac.uk.
authors.forename: Keith
authors.initials: K
authors.lastname: Izod
authors.forename: Casey M
authors.initials: CM
authors.lastname: Dixon
authors.forename: Ross W
authors.initials: RW
authors.lastname: Harrington
authors.forename: Michael R
authors.initials: MR
authors.lastname: Probert