A Triatomic Silicon(0) Cluster Stabilized by a Cyclic Alkyl(amino) Carbene |
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| Authors: | Dr Kartik Chandra Mondal Dr Sudipta Roy Priv‐Doz?Dr Birger Dittrich Dr Diego M Andrada Prof?Dr Gernot Frenking Prof?Dr Herbert W Roesky |
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| Institution: | 1. Institut für Anorganische Chemie, Universit?t G?ttingen, G?ttingen, Germany;2. Anorganische Chemie und Strukturchemie II, Heinrich-Heine Universit?t Düsseldorf, Düsseldorf, Germany;3. Fachbereich Chemie, Philipps-Universit?t Marburg, Marburg, Germany |
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| 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. |
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| Keywords: | carbenes clusters density functional calculations pi acceptors silicon |
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