Crystal structure of dimethylformamidium bis(trifluoromethanesulfonyl)amide: an ionic liquid
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چکیده
At 100 K, the title mol-ecular salt, C3H8NO+·C2F6NO4S2-, has ortho-rhom-bic (P212121) symmetry; the amino H atom of bis-(tri-fluoro-methane-sulfon-yl)amine (HNTf2) was transferred to the basic O atom of di-methyl-formamide (DMF) when the ionic liquid components were mixed. The structure displays an O-H⋯N hydrogen bond, which links the cation to the anion, which is reinforced by a non-conventional C-H⋯O inter-action, generating an R22(7) loop. A further very weak C-H⋯O inter-action generates an [001] chain.
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