Deuteron nuclear magnetic resonance and dielectric studies of molecular reorientation and charge transport in succinonitrile-glutaronitrile plastic crystals

Paddle-wheel mechanism in doped succinonitrile–glutaronitrile plastic electrolyte: a joint magnetic resonance, dielectric, and viscosimetry study of Li ion translational and molecular reorientational dynamics

“…The deuterated SN (degree of deuteration: 91%) is from the previously used batch. 48 LiPF 6 (98%) was acquired from ThermoFischer Scientific. All samples were prepared inside a glovebox, where 60% SN and 40% GN were mixed as reported earlier.…”

“…All samples were prepared inside a glovebox, where 60% SN and 40% GN were mixed as reported earlier. 48 The Li salts were first dried at T = 353 K for a minimum of 8 hours directly before use. Afterwards they were ground to optimize dissolution and added to the nitrile mixtures under heavy stirring.…”

“…The decrease seen in the dc conductivity as well as that observed in the dielectric constant while the loss peaks shift towards lower frequencies, are well-known dielectric aspects of liquids and plastic crystals 53 and are similar to results obtained for the undoped mixture. 48,49 For an analysis of the dielectric spectra, like before, 48 we use the Cole-Davidson (CD) function 54…”

“…The solid blue and dashed blue lines are calculated using eqn (7) in conjunction with the spectral density given by eqn ( 6) and using the fit parameters from ref. 48. Deuterium T 1 and T 2 data for the undoped mixture 48 are shown by the light blue squares and circles, respectively.…”

“…48. Deuterium T 1 and T 2 data for the undoped mixture 48 are shown by the light blue squares and circles, respectively. 7 Li spin-lattice relaxation times for the doped mixture are presented as red diamonds.…”