title: Symmetric and asymmetric 13-vertex bimetallacarboranes by polyhedral expansion.
abstract: Symmetric 4,5,2,3-M(2)C(2)B(9) 13-vertex bimetallacarboranes of cobalt and ruthenium with 14 skeletal electron pairs are afforded by reduction and metallation of 3,1,2-MC(2)B(9) icosahedra; the symmetric species can be converted to their asymmetric 4,5,1,6-M(2)C(2)B(9) isomers by heat, but an easier route is by thermolysis of the reduced species before metallation.
authors.affiliation: School of Engineering & Physical Sciences, Heriot-Watt University, Edinburgh, UKEH14 4AS.
authors.forename: Maria Elena
authors.initials: ME
authors.lastname: Lopez
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Edie
authors.forename: David
authors.initials: D
authors.lastname: Ellis
authors.forename: Anke
authors.initials: A
authors.lastname: Horneber
authors.forename: Stuart A
authors.initials: SA
authors.lastname: Macgregor
authors.forename: Georgina M
authors.initials: GM
authors.lastname: Rosair
authors.forename: Alan J
authors.initials: AJ
authors.lastname: Welch