title: A bis(silaselenone) with two donor-stabilized Si=Se bonds from an unexpected stereoconvergent hydrolysis of a diselenadisiletane.
abstract: SiSe matters: Diselenadisiletane 2, formed from direct reaction of a racemic silylene 1 with elemental selenium, gives the first bis(silaselenone) upon hydrolysis with water (3; see picture, C gray, H white, N blue, O red, Se purple, Si green; d(Si=Se) = 215 pm). The reaction is stereoconvergent: only racemic forms of 3 are obtained from a mixture of racemic and meso forms of 2.
authors.affiliation: Organosilicon Research Center, Department of Chemistry, University of Wisconsin, 1101 University Avenue, Madison, WI 53706, USA.
authors.forename: Amitabha
authors.initials: A
authors.lastname: Mitra
authors.forename: Joseph P
authors.initials: JP
authors.lastname: Wojcik
authors.forename: Daniel
authors.initials: D
authors.lastname: Lecoanet
authors.forename: Thomas
authors.initials: T
authors.lastname: Müller
authors.forename: Robert
authors.initials: R
authors.lastname: West