Details

Autor(en) / Beteiligte

• Keuter, Jan
• Schwermann, Christian
• Hepp, Alexander
• Bergander, Klaus
• Droste, Jörn
• Hansen, Michael Ryan
• Doltsinis, Nikos L.
• Mück-Lichtenfeld, Christian
• Lips, Felicitas

Titel

A highly unsaturated six-vertex amido-substituted silicon cluster† †Electronic supplementary information (ESI) available: Further experimental and computational details and the video are available. CCDC 1989146 contains the crystallographic information for 2. For ESI and crystallographic data in CIF or other electronic format see DOI: 10.1039/d0sc01427c

Ist Teil von

• Chemical science (Cambridge), 2020-05, Vol.11 (23), p.5895-5901

Ort / Verlag

Royal Society of Chemistry

Erscheinungsjahr

2020

Link zum Volltext

Quelle

Free E-Journal (出版社公開部分のみ）

Beschreibungen/Notizen

• Thermal treatment of the bicyclo[1.1.0]tetrasilatetraamide [Si 4 {N(SiMe 3 )Dipp} 4 ] 1 resulted in the formation of a highly unsaturated six-vertex silicon cluster [Si 6 {N(SiMe 3 )Dipp} 4 ] 2 with only four amine-substituents and two ligand-free silicon atoms. Thermal treatment of the bicyclo[1.1.0]tetrasilatetraamide [Si 4 {N(SiMe 3 )Dipp} 4 ] 1 resulted in the formation of a highly unsaturated six-vertex silicon cluster [Si 6 {N(SiMe 3 )Dipp} 4 ] 2 with only four amine-substituents and two ligand-free silicon atoms. In solution, a major and a minor conformer of this cluster are in equilibrium according to multinuclear NMR spectroscopy, lineshape analysis, DFT calculations and molecular dynamics simulations. The bonding situation in the highly unsaturated cluster features lone pair type character at the ligand-free silicon atoms and partial single and double bond character in the upper butterfly-shaped ring of 2 . This allows to consider 2 as the silicon analogue of a butalene isomer.