title: Isolation of a stable, acyclic, two-coordinate silylene.
abstract: The synthesis and characterization of a stable, acyclic two-coordinate silylene, Si(SAr(Me(6)))(2) [Ar(Me(6)) = C(6)H(3)-2,6(C(6)H(2)-2,4,6-Me(3))(2)], by reduction of Br(2)Si(SAr(Me(6)))(2) with a magnesium(I) reductant is described. It features a V-shaped silicon coordination with a S-Si-S angle of 90.52(2)° and an average Si-S distance of 2.158(3) Å. Although it reacts readily with an alkyl halide, it does not react with hydrogen under ambient conditions, probably as a result of the ca. 4.3 eV energy difference between the frontier silicon lone pair and 3p orbitals.
authors.affiliation: Department of Chemistry, University of California, Davis, One Shields Avenue, Davis, California 95616, USA.
authors.forename: Brian D
authors.initials: BD
authors.lastname: Rekken
authors.forename: Thomas M
authors.initials: TM
authors.lastname: Brown
authors.forename: James C
authors.initials: JC
authors.lastname: Fettinger
authors.forename: Heikki M
authors.initials: HM
authors.lastname: Tuononen
authors.forename: Philip P
authors.initials: PP
authors.lastname: Power