Abstract
High-pressure conditions afford unique all-hydrido hypervalent complexes [SiH 6] 2- in the crystalline hydridosilicates A 2SiH 6 (A=K, Rb). Compared to normal-valent silanes the Si-H bond appears considerably enlarged, by about 0.15 Å. Accordingly, Si-H stretching frequencies are drastically reduced, by about 400-500 cm -1, thus reflecting the weakness of a hypervalent Si-H bond.
| Original language | English (US) |
|---|---|
| Pages (from-to) | 3156-3160 |
| Number of pages | 5 |
| Journal | Angewandte Chemie - International Edition |
| Volume | 51 |
| Issue number | 13 |
| DOIs | |
| State | Published - Mar 26 2012 |
Keywords
- coordination chemistry
- high-pressure hydrogenation
- hydrido complexes
- hypervalent silicon
- multi-anvil technique
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
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Puhakainen, K., Benson, D., Nylén, J., Konar, S., Stoyanov, E., Leinenweber, K., & Häussermann, U. (2012). Hypervalent octahedral SiH 6 2- species from high-pressure synthesis. Angewandte Chemie - International Edition, 51(13), 3156-3160. https://doi.org/10.1002/anie.201108713