title: A Triatomic Silicon(0) Cluster Stabilized by a Cyclic Alkyl(amino) Carbene.
abstract: Reduction of the neutral carbene tetrachlorosilane adduct (cAAC)SiCl4 (cAAC=cyclic alkyl(amino) carbene :C(CMe2)2 (CH2)N(2,6-iPr2C6H3) with potassium graphite produces stable (cAAC)3Si3, a carbene-stabilized triatomic silicon(0) molecule. The Si-Si bond lengths in (cAAC)3Si3 are 2.399(8), 2.369(8) and 2.398(8) Å, which are in the range of Si-Si single bonds. Each trigonal pyramidal silicon atom of the triangular molecule (cAAC)3Si3 possesses a lone pair of electrons. Its bonding, stability, and electron density distributions were studied by quantum chemical calculations.
authors.affiliation: Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany. csdkartik@iitm.ac.in.
authors.forename: Kartik Chandra
authors.initials: KC
authors.lastname: Mondal
authors.affiliation: Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany.
authors.forename: Sudipta
authors.initials: S
authors.lastname: Roy
authors.affiliation: Anorganische Chemie und Strukturchemie II, Heinrich-Heine Universität Düsseldorf, Gebäude 26.42.O1.21, Universitätsstraße 1, 40225, Düsseldorf, Germany. dittrich@hhu.de.
authors.forename: Birger
authors.initials: B
authors.lastname: Dittrich
authors.affiliation: Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032, Marburg, Germany.
authors.forename: Diego M
authors.initials: DM
authors.lastname: Andrada
authors.affiliation: Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Straße, 35032, Marburg, Germany. frenking@chemie.uni-marburg.de.
authors.forename: Gernot
authors.initials: G
authors.lastname: Frenking
authors.affiliation: Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077, Göttingen, Germany. hroesky@gwdg.de.
authors.forename: Herbert W
authors.initials: HW
authors.lastname: Roesky
keywords: carbenes; clusters; density functional calculations; pi acceptors; silicon