Synthesis of pentacoordinate silicon complexes from SiO2

  title={Synthesis of pentacoordinate silicon complexes from SiO2},
  author={Richard M. Laine and Kay Y. Blohowiak and Timothy R. Robinson and Martin L. Hoppe and Paola Nardi and Jeff W. Kampf and Jackie Uhm},
THE potential role of inorganic and organometallic silicon compounds in the development of new chemical reagents, polymers, glasses and ceramics1 is limited at present by the paucity of simple silicon-containing starting materials. Whereas industrial carbon-based chemistry can draw on the diversity of compounds produced from crude oil, coal or other natural sources, silicon chemistry2 relies almost exclusively on the carbothermal reduction of SiO2 to silicon. This is then transformed into… 
5-Coordinate Si Compounds as Intermediates in the Synthesis of Silicates in Nonaqueous Media
Sodium silicoglycolate, an organosilicon compound in which silicon is in 5-coordination with respect to oxygen, is shown to be a reaction intermediate in the synthesis of a purely siliceous sodalite
Pentacoordinate Silicon Complexes as Precursors to Silicate Glasses and Ceramics
The recent discovery that pentacoordinate alkali glycolato silicates such as monomeric MSi(OCH 2 CH 2 O) 2 OCH 2 -CH 2 OH or dimeric M 2 Si 2 (OCH 2 CH 2 O) 5 (where M=Li, Na, K, or Cs) can be
Solubilization of silica: Synthesis, characterization and study of penta-coordinated pyridine N-oxide silicon complexes
In an effort to design agents that could solubilize silica in water, under ambient conditions and pH, as takes place in nature, novel zwitterionic, penta-oxo-coordinated silicon compounds with
Anionic silicate organic frameworks constructed from hexacoordinate silicon centres
Crystalline frameworks composed of hexacoordinate silicon species have thus far only been observed in a few high pressure silicate phases. By implementing reversible Si–O chemistry for the
Low Temperature Routes to Cordierite-Like Ceramics using Chemical Processing
The reaction of SiO 2 with basic magnesium compounds, in the presence of excess ethylene glycol, provides access to the hexacoordinate silicate complex, MgSi(OCH 2 CH 2 O) 3 . Alkali metal hydroxides
Silicon Compounds, Silicon Esters
Silicon esters are silicon compounds that contain an oxygen bridge from silicon to an organic group, ie, Si–OR. The most prevalent is tetraethoxysilane. The applications for tetraalkoxysilanes are
Practical and scalable synthesis of bench-stable organofluorosilicate salts.
It is demonstrated that organotetrafluorosilicates are both more reactive than the corresponding trialkoxysilanes and more stable under solvolytic conditions and represent a new platform on which to develop challenging transformations.
Green routes to silicon-based materials and their environmental implications
Abstract The “greening” of silicon chemistry is fundamentally important for the future of the field. Traditional methods used to make silicon-based materials rely on carbon rich processes that are


Abstract Spirocyclic pentaoxy anionic silicates are synthesized and their molecular structures determined by X-ray diffraction. The K, 18-crown-6 salt of [(OCMe2CMe2O)2SiO-t-Bu] (1), formed from the
Reactivity of dianionic hexacoordinated silicon complexes toward nucleophiles: a new route to organosilanes from silica
Le complexe dianionique du silicium dont il est question dans le titre est prepare a partir de la silice et du pyrocatechol. Il reagit avec plusieurs reactifs de Grignard et organolithiens pour
Molecular and electronic structure of penta- and hexacoordinate silicon compounds
Formation, structure (stereochimie et stereodynamique), et donnees de spectroscopie RMN des composes du titre
Über innerkomplexe Brenzcatechinate vierwertiger Elemente
Die hier untersuchten vierwertigen Elemente Silicium, Titan, Zirkonium, Thorium und Uran bilden samtlich wohl charakterisierte, stabile innerkomplexe Brenzcatechinate, von denen eine grosere Anzahl
Phase diagrams for ceramists
It's not surprisingly when entering this site to get the book. One of the popular books now is the phase diagrams for ceramists. You may be confused because you can't find the book in the book store