Ligand-free deltahedral clusters of silicon in solution: synthesis, structure, and electrochemistry of Si9(2-).

@article{Goicoechea2005LigandfreeDC,
  title={Ligand-free deltahedral clusters of silicon in solution: synthesis, structure, and electrochemistry of Si9(2-).},
  author={Jos{\'e} M Goicoechea and Slavi C Sevov},
  journal={Inorganic chemistry},
  year={2005},
  volume={44 8},
  pages={2654-8}
}
Deltahedral nine-atom clusters of silicon, Si(9)(2-), were synthesized by mild oxidation of a liquid ammonia solution of K(12)Si(17) with Ph(3)GeCl in the presence of 18-crown-6 (1,4,7,10,13,16-hexaoxacyclooctadecane) or 2,2,2-crypt (4,7,13,16,21,24-hexaoxa-1,10-diazabicyclo[8.8.8]hexacosane). The clusters were structurally characterized in [K(18-crown-6)](2)Si(9).C(5)H(5)N (yellow; orthorhombic, Pnma; a = 14.013(1), b = 18.108 (1), c = 18.320 (1) A; Z = 4) crystallized from a pyridine solution… CONTINUE READING

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