Details

Autor(en) / Beteiligte

• Lermontov, Sergey A.
• Malkova, Alena N.
• Lermontova, El'mira Kh
• Churakov, Andrei V.

Titel

Hexafluoropropylene Oxide-Alcohol: A Convenient System for Silica Dissolution

Ist Teil von

• Phosphorus, sulfur, and silicon and the related elements, 2011-01, Vol.186 (1), p.178-188

Ort / Verlag

Abingdon: Taylor & Francis Group

Erscheinungsjahr

2011

Quelle

Taylor & Francis Journals

Beschreibungen/Notizen

• A new method of silica dissolution is described. It involves the formation of a stable SiF 4 · n ROH complex (1, 1a) just from SiO 2 and anhydrous alcoholic HF generated in situ from commercially available hexafluoropropene oxide. Alcoholic SiF 4 complexes can be easily converted to different organosilicon compounds of the type SiF 4 L 2 and (LH) 2 SiF 6 [L = 1,10-phenantroline (2a), 2,2′-dipyridyl (2b), Me 2 SO (2c), pyridine (2d), triethanolamine (3a)]. Different silica-containing compounds can be used in this strategy-silicagel, sand, alumosilicates, and even rice husk. GRAPHICAL ABSTRACT