New Anions of Pentacoordinate Phosphorus Containing Fluorine and Trifluoromethyl Groups

Autor:	Wieland Tyrra, Lesya A. Babadzhanova, N. V. Pavlenko, Yurii L. Yagupolskii, Dieter Naumann, Igor I. Gerus
Rok vydání:	2007
Předmět:	chemistry.chemical_classification Trifluoromethyl Silanes Phosphorus Inorganic chemistry chemistry.chemical_element Salt (chemistry) Medicinal chemistry Transition state Inorganic Chemistry chemistry.chemical_compound chemistry Nucleophilic substitution Fluorine Fluoride
Zdroj:	European Journal of Inorganic Chemistry. 2007:1501-1507
ISSN:	1099-0682 1434-1948
Popis:	The unique pseudo-trigonal-bipyramidal CF3PF3O– and (CF3)2PF2O– anions were obtained and characterised for the first time. They were formed by the reactions of (PhO)3P(O), Me3SiCF3 and the fluoride ion sources [Me4N]F and CsF, respectively, in glyme. These anions represent the stable transition states postulated for nucleophilic substitution at a tetrahedral phosphorus atom. The salt Cs[(CF3)2PF2O] (7) is stable at room temperature for a month, while [Me4N][CF3PF3O] (1) dismutates into [Me4N][CF3PF(O)O] (2) and [Me4N][CF3PF5] (3) above 0 °C. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2007)
Databáze:	OpenAIRE
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