Crystal structure and solid state ionic conductivity of molecular crystal composed of lithium bis(trifluoromethanesulfonyl)amide and 1,2-dimethoxybenzene in a 1:1 molar ratio

A novel molecular crystal, Li{N(SO2CF3)2}(C6H4(OCH3)2) (1), was synthesized by heating LiTFSA with DMB in 1:1 molar ratio. Single crystal x-ray diffraction study of 1 revealed that the compound possesses a dinuclear structure with five-coordinate lithium centers bridged by TFSA anions. AC impedance measurements showed that ionic conduction through the crystallites of 1 takes place via a hopping mechanism at ambient temperature.