Untersuchungen An Natriumtrifluormethylsulfonat. Kristallstruktur von Natriumtrifluormethylsulfonat- Trifluormethylsulfonsäure (1/3) / Studies on Sodium Trifluoromethanesulfonate. Crystal Structure of Sodium Trifluoromethanesulfonate-Trifluoromethanesulfonic Acid (1/3)

Abstract

Single crystals of sodium trifluoromethanesulfonate-trifluoromethanesulfonic acid (1/3) (NaSO3CF3 · 3 HSO3CF3) have been prepared by reaction of sodium trifluoromethanesulfonate with anhydrous trifluoromethanesulfonic acid at 60 °C. NaSO3CF3 · 3 HSO3CF3 crystallizes in space group I213 (No. 199) with a = 16.210(1) Å, Z = 8. Sodium is coordinated by six oxygen atoms from six different trifluoromethanesulfonic acid molecules, each acid molecu­le connecting two sodium ions. The 3-dimensional network resulting from the edge sharing octahedra corresponds to the cubic (10, 3) net, not realised otherwise, so far. The trifluorome­thanesulfonate anion is bonded to three trifluoromethanesulfonic acid molecules by hydrogen bonds.