title: Formation of a 1,4-diamino-2,3-disila-1,3-butadiene derivative.
abstract: A 1,4-diamino-2,3-disila-1,3-butadiene derivative of composition (Me2-cAAC)2(Si2Cl2) (Me2-cAAC = :C(CMe2)2(CH2)N-2,6-iPr2C6H3) was synthesized by reduction of the Me2-cAAC:SiCl4 adduct with KC8. This compound is stable at 0 °C for 3 months in an inert atmosphere. Theoretical studies reveal that the silicon atoms exhibit pyramidal coordination, where the Cl-Si-Si-Cl dihedral angle is twisted by 43.3° (calcd 45.9°). The two silicon-carbon bonds are intermediates between single and double Si-C bonds due to twisting of the C-Si-Si-C dihedral angle (163.6°).
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: Herbert W
authors.initials: HW
authors.lastname: Roesky
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
authors.forename: Alke
authors.initials: A
authors.lastname: Meents