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An Anionic Amido-Substituted Seven-Vertex Siliconoid Cluster |
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| Authors: | Dr Jan Keuter Maria Dimitrova Dr Oliver Janka Dr Alexander Hepp Priv?Doz?Dr Raphael J F Berger Dr Felicitas Lips |
| Institution: | 1. Westfälische Wilhelms-Universität Münster, Institut für Anorganische und Analytische Chemie, Corrensstraße 28–30, 48149 Münster, Germany;2. Paris-Lodron Universität Salzburg, Materialchemie, Jakob-Harringerstr. 2a, 5020 Salzburg, Austria |
| Abstract: | The silanide Si4{N(SiMe3)Dipp}3]? ( 1 ) transforms into the anionic siliconoid cluster Si7{N(SiMe3)Dipp}3]? ( 2 ) with four unsubstituted silicon atoms as a contact ion pair with K(18]crown-6)] in C6D6 at room temperature within five weeks. Anion 2 was investigated by natural population analysis and visualization of intrinsic atomic orbitals. Magnetically induced current-density calculations of 2 revealed two distinct strong diatropic vortices that sum up in one direction and create a strongly shielded apical silicon atom in 2 . |
| Keywords: | aromaticity clusters N ligands silicon siliconoids |