title: Crystal structure of di-methyl-formamidium bis-(tri-fluoro-methane-sulfon-yl)amide: an ionic liquid.
abstract: 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 anR22(7) loop. A further very weak C-H⋯O inter-action generates an [001] chain.
authors.affiliation: Pacific Northwest National Laboratory, PO Box 999 MSIN: K2-57, Richland, WA 99352, USA.
authors.forename: Allan Jay P
authors.initials: AJ
authors.lastname: Cardenas
authors.affiliation: Pacific Northwest National Laboratory, PO Box 999 MSIN: K2-57, Richland, WA 99352, USA.
authors.forename: Molly
authors.initials: M
authors.lastname: O'Hagan
keywords: crystal structure; electrolyte; hydrogen bond; ionic liquid