title: One-electron-mediated rearrangements of 2,3-disiladicarbene.
abstract: A disiladicarbene, (Cy-cAAC)2Si2 (2), was synthesized by reduction of Cy-cAAC:SiCl4 adduct with KC8. The dark-colored compound 2 is stable at room temperature for a year under an inert atmosphere. Moreover, it is stable up to 190 °C and also can be characterized by electron ionization mass spectrometry. Theoretical and Raman studies reveal the existence of a Si═Si double bond with a partial double bond between each carbene carbon atom and silicon atom. Cyclic voltammetry suggests that 2 can quasi-reversibly accept an electron to produce a very reactive radical anion, 2(•-), as an intermediate species. Thus, reduction of 2 with potassium metal at room temperature led to the isolation of an isomeric neutral rearranged product and an anionic dimer of a potassium salt via the formation of 2(•-).
authors.affiliation: Institut für Anorganische Chemie, Georg-August-Universität , Tammannstrasse 4, 37077 Göttingen, Germany.
authors.forename: Kartik Chandra
authors.initials: KC
authors.lastname: Mondal
authors.forename: Prinson P
authors.initials: PP
authors.lastname: Samuel
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Roesky
authors.forename: Rinat R
authors.initials: RR
authors.lastname: Aysin
authors.forename: Larissa A
authors.initials: LA
authors.lastname: Leites
authors.forename: Sven
authors.initials: S
authors.lastname: Neudeck
authors.forename: Jens
authors.initials: J
authors.lastname: Lübben
authors.forename: Birger
authors.initials: B
authors.lastname: Dittrich
authors.forename: Nicole
authors.initials: N
authors.lastname: Holzmann
authors.forename: Markus
authors.initials: M
authors.lastname: Hermann
authors.forename: Gernot
authors.initials: G
authors.lastname: Frenking