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- Anorganische Chemie (7)
- Bis[1,2-benzenediolato(2-)][2-(dimethylammonio)phenyl]silicate (1)
- Bis[2,3-naphthalenediolato(2-)][2-(dimethylammonio)phenyl]silicate (1)
- Fluorosilicates (1)
- Hexahydro-difenidol (1)
- Kristallstruktur (1)
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- Muscarinic receptor antagonists (M 3-selective) (1)
- Muscarinic receptor subtypes; Muscarinic rcceptor agonists (M 1-selective) (1)
- Muscarinic receptors (1)
- Oxyphencyclimine (1)
- Pentacoordinate silicon (1)
- Si-functional (1)
- Silanes (1)
- Silanol (1)
- Silicate (1)
- Spirosilicate (1)
- Vidcomicroscopy (1)
- acetyl- (1)
- crystal structure (1)
- crystal structure of (1)
- zwitterionic (1)
- zwitterionic spirosilicate (1)
- zwitterionic λ5-Spirosilicates (1)
Institute
The zwitterionic tetrafluoro(pyrrolidiniomethyl)silicate (6) was synthesized by the reaction of trimethoxy(pyrrolidinomethyl) silane (7) with hydrogen fluoride in ethanol/hydrofluoric acid (yield 83%). 6 crystallizes in the space group P2\(_1\)fc with two crystallographically distinct molecules in the asymmetric unit. In both molecules the pentacoordinate silicon atom is surrounded by four fluorine atoms and one carbon atom, the latter being in an equatorial position. The coordination polyhedron of the silicon atoms can be described as a slightly distorted trigonal bipyramid. The zwitterionic structure was also proved for dissolved 6 (solution in CD\(_3\)CN, NMRspectroscopic studies).