The
Structure of the Carbene Stabilized Si<sub>2</sub>H<sub>2</sub> May
Be Equally Well Described with Coordinate Bonds
as with Classical Double Bonds
Chandrajeet Mohapatra
Subrata Kundu
Alexander
N. Paesch
Regine Herbst-Irmer
Dietmar Stalke
Diego M. Andrada
Gernot Frenking
Herbert W. Roesky
10.1021/jacs.6b07361.s004
https://acs.figshare.com/articles/dataset/The_Structure_of_the_Carbene_Stabilized_Si_sub_2_sub_H_sub_2_sub_May_Be_Equally_Well_Described_with_Coordinate_Bonds_as_with_Classical_Double_Bonds/3586041
The cyclic alkylÂ(amino)
carbene stabilized Si<sub>2</sub>H<sub>2</sub> has been isolated in
the molecular form of composition (Me-cAAC:)<sub>2</sub>Si<sub>2</sub>H<sub>2</sub> (<b>1</b>) and (Cy-cAAC:)<sub>2</sub>Si<sub>2</sub>H<sub>2</sub> (<b>2</b>) at room temperature.
Compounds <b>1</b> and <b>2</b> were synthesized from
the reduction of HSiCl<sub>3</sub> using 3 equiv of KC<sub>8</sub> in the presence of 1 equiv of Me-cAAC: and Cy-cAAC:, respectively.
These are the first molecular examples of Si<sub>2</sub>H<sub>2</sub> characterized by single crystal X-ray structural analysis. Moreover,
electrospray ionization mass spectrometry and <sup>1</sup>H as well
as <sup>29</sup>Si NMR data are reported. Furthermore, the structure
of compound <b>1</b> has been investigated by theoretical methods.
The theoretical analysis of <b>1</b> explains equally well its
structure with coordinate bonds as with classical double bonds of
a 2,3-disila-1,3-butadiene.
2016-08-05 00:00:00
compound 1
Carbene Stabilized Si 2 H 2 May
Compounds 1
KC 8
Coordinate Bonds
Si 2 H 2
1 equiv
29 Si NMR data
1 H
HSiCl 3
room temperature
3 equiv
electrospray ionization mass spectrometry
Classical Double Bonds