Neutral and Cationic Phosphoramide Adducts of Silicon Tetrachloride: Synthesis and Characterization of Their Solution and Solid-State Structures

Autor:	Scott E. Denmark, Brian M. Eklov
Rok vydání:	2007
Předmět:	Silicon Chemistry Organic Chemistry Inorganic chemistry Cationic polymerization Enantioselective synthesis chemistry.chemical_element General Chemistry Medicinal chemistry Catalysis Adduct chemistry.chemical_compound Hexamethylphosphoramide Silicon tetrachloride Lewis acids and bases Single crystal
Zdroj:	Chemistry - A European Journal. 14:234-239
ISSN:	0947-6539
DOI:	10.1002/chem.200701466
Popis:	The solution and solid-state structures of hexamethylphosphoramide (HMPA) adducts of tetrachlorosilane (SiCl 4 ) are discussed. In solution, the meridional and facial isomers of the hexa-coordinate cationic complex 3HMPA·SiCl 3 + Cl - (2) predominate at all HMPA concentrations, and are in equilibrium with the hexa-coordinate neutral trans- and cis-2HMPA·SiCl 4 complexes (1), as well as the penta-coordinate cationic cis-2HMPA·SiCl 3 + Cl - (3). Single crystal X-ray analyses are reported for the ionized mer-3HMPA·SiCl 3 + HCl 2 - and the neutral trans-2HMPA·SiCl 4 complexes.
Databáze:	OpenAIRE
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