title: The Structure of the Carbene Stabilized Si2H2 May Be Equally Well Described with Coordinate Bonds as with Classical Double Bonds.
abstract: The cyclic alkyl(amino) carbene stabilized Si2H2 has been isolated in the molecular form of composition (Me-cAAC:)2Si2H2 (1) and (Cy-cAAC:)2Si2H2 (2) at room temperature. Compounds 1 and 2 were synthesized from the reduction of HSiCl3 using 3 equiv of KC8 in the presence of 1 equiv of Me-cAAC: and Cy-cAAC:, respectively. These are the first molecular examples of Si2H2 characterized by single crystal X-ray structural analysis. Moreover, electrospray ionization mass spectrometry and (1)H as well as (29)Si NMR data are reported. Furthermore, the structure of compound 1 has been investigated by theoretical methods. The theoretical analysis of 1 explains equally well its structure with coordinate bonds as with classical double bonds of a 2,3-disila-1,3-butadiene.
authors: Institut für Anorganische Chemie, Universität Göttingen , Tammannstrasse 4, 37077 Göttingen, Germany.
authors: Chandrajeet
authors: C
authors: Mohapatra
authors: Institut für Anorganische Chemie, Universität Göttingen , Tammannstrasse 4, 37077 Göttingen, Germany.
authors: Subrata
authors: S
authors: Kundu
authors: Institut für Anorganische Chemie, Universität Göttingen , Tammannstrasse 4, 37077 Göttingen, Germany.
authors: Alexander N
authors: AN
authors: Paesch
authors: Institut für Anorganische Chemie, Universität Göttingen , Tammannstrasse 4, 37077 Göttingen, Germany.
authors: Regine
authors: R
authors: Herbst-Irmer
authors: Institut für Anorganische Chemie, Universität Göttingen , Tammannstrasse 4, 37077 Göttingen, Germany.
authors: Dietmar
authors: D
authors: Stalke
authors: Fachbereich Chemie, Philipps-University Marburg , Hans-Meerwein-Str., 35032-Marburg, Germany.
authors: Diego M
authors: DM
authors: Andrada
authors: Fachbereich Chemie, Philipps-University Marburg , Hans-Meerwein-Str., 35032-Marburg, Germany.
authors: Gernot
authors: G
authors: Frenking
authors: Institut für Anorganische Chemie, Universität Göttingen , Tammannstrasse 4, 37077 Göttingen, Germany.
authors: Herbert W
authors: HW
authors: Roesky