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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 an R22(7) loop. A further very weak C-H?O inter-action generates an [001] chain.

SUBMITTER: Cardenas AJ 

PROVIDER: S-EPMC5120709 | biostudies-other | 2016 Sep

REPOSITORIES: biostudies-other

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Crystal structure of di-methyl-formamidium bis-(tri-fluoro-methane-sulfon-yl)amide: an ionic liquid.

Cardenas Allan Jay P AJ   O'Hagan Molly M  

Acta crystallographica. Section E, Crystallographic communications 20160812 Pt 9


At 100 K, the title mol-ecular salt, C<sub>3</sub>H<sub>8</sub>NO<sup>+</sup>·C<sub>2</sub>F<sub>6</sub>NO<sub>4</sub>S<sub>2</sub><sup>-</sup>, has ortho-rhom-bic (<i>P</i>2<sub>1</sub>2<sub>1</sub>2<sub>1</sub>) symmetry; the amino H atom of bis-(tri-fluoro-methane-sulfon-yl)amine (HNTf<sub>2</sub>) 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, whi  ...[more]

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