Ba[Si(OCH 2 CH 2 O) 3 ], a Hexaalkoxysilicate Synthesized from SiO 2

Ba[Si(OCH 2 CH 2 O) 3 ], a Hexaalkoxysilicate Synthesized from SiO 2

The reaction of BaO, SiO 2 , and an excess of ethylene glycol provides [Ba‐Si(OCH 2 CH 2 O) 3 ] · 3.25 HO(CH 2 ) 2 OH, the first amazingly stable hexaalkylsilicate, in 90% yield. This complex was characterized by X‐ray crystallography. The reactions with MgO and CaO give analogous compounds; with al...

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Veröffentlicht in:Angewandte Chemie International Edition 1993-02, Vol.32 (2), p.287-289
Hauptverfasser: Hoppe, Martin L., Laine, Richard M., Kampf, Jeffrey, Gordon, Mark S., Burggraf, Larry W.
Format: Artikel
Sprache:eng
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Zusammenfassung:The reaction of BaO, SiO 2 , and an excess of ethylene glycol provides [Ba‐Si(OCH 2 CH 2 O) 3 ] · 3.25 HO(CH 2 ) 2 OH, the first amazingly stable hexaalkylsilicate, in 90% yield. This complex was characterized by X‐ray crystallography. The reactions with MgO and CaO give analogous compounds; with alkali metal oxides pentacoordinate silicates are formed.
ISSN:0570-0833
DOI:10.1002/anie.199302871