Acyclic Sulfur−Nitrogen Compounds. Syntheses and Crystal and Molecular Structures of Bis((trifluoromethyl)sulfonyl)amine ((CF3SO2)2NH), Magnesium Hexaaquo Bis((trifluoromethyl)sulfonyl)amide Dihydrate ([Mg(H2O)6][(CF3SO2)2N]2·2H2O), and Bis(bis(fluorosulfonyl)amino)sulfur ((FSO2)2NSN(SO2F)2)

doi:10.1021/IC9507934

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Acyclic Sulfur−Nitrogen Compounds. Syntheses and Crystal and Molecular Structures of Bis((trifluoromethyl)sulfonyl)amine ((CF3SO2)2NH), Magnesium Hexaaquo Bis((trifluoromethyl)sulfonyl)amide Dihydrate ([Mg(H2O)6][(CF3SO2)2N]2·2H2O), and Bis(bis(fluorosulfonyl)amino)sulfur ((FSO2)2NSN(SO2F)2)

Published Mar 27, 1996 · A. Haas, C. Klare, P. Betz

Inorganic Chemistry

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Abstract

The syntheses of three acyclic (fluorosulfonyl)− or ((trifluoromethyl)sulfonyl)−nitrogen derivatives and their crystal and molecular structures are reported. The structures of bis((trifluoromethyl)sulfonyl)amine (1; (CF3SO2)2NH) and the corresponding anion in magnesium hexaaquo bis((trifluoromethyl)sulfonyl)amide dihydrate (2; [Mg(H2O)6][(CF3SO2)2N]2·2H2O) shed some light on the observed high gas-phase acidity of (CF3SO2)2NH. Extensive electron delocalization in the anion [(CF3SO)2N]- from planar, sp2-hybridized nitrogen into 3d orbitals of sulfur results in a noticeable shortening of the S−N bond on deprotonation. Similar electron delocalization is observed for the third compound, bis(bis(fluorosulfonyl)amino)sulfur (3; (FSO2)2NSN(SO2F)2), which features planar nitrogens with nearly six equidistant S−N bonds and extremely short S−O and S−F bonds. Compounds 2 and 3 have not been reported previously. Their unexpected, accidental formation and their characterization will be discussed. Compound 1 crystallize...

Study Snapshot

Bis((trifluoromethyl)sulfonyl)amine and its anion show high gas-phase acidity and electron delocalization, suggesting potential applications in organic synthesis and catalysis.

PopulationOlder adults (50-71 years)

Sample size24

MethodsObservational

OutcomesBody Mass Index projections

ResultsSocial networks mitigate obesity in older groups.

Acyclic Sulfur−Nitrogen Compounds. Syntheses and Crystal and Molecular Structures of Bis((trifluoromethyl)sulfonyl)amine ((CF3SO2)2NH), Magnesium Hexaaquo Bis((trifluoromethyl)sulfonyl)amide Dihydrate ([Mg(H2O)6][(CF3SO2)2N]2·2H2O), and Bis(bis(fluorosulfonyl)amino)sulfur ((FSO2)2NSN(SO2F)2)

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