Abstract
Ambient temperature alkali glassy salt mixtures, x[AlCl3]/(1 - x)[NaN(CN)2] (x = 0.4 - 0.75), were prepared. A large increase in the C≡N stretching frequencies for these materials indicate complex formation between the anion [N(CN)2]- and AlCl3 molecule. Ab initio calculations confirm the assignments of the vibrational frequencies. The 1:1 adduct has a glass transition at 27 °C, and the glassy state persists for 4 weeks at room temperature. The room temperature ionic conductivity of this glass is 6.6 x 10-6 S/cm, and it increases as the AlCl3 content increases. The temperature dependence of the conductivity follows the Vogel-Tamman-Fulcher equation, suggesting that ion transport is coupled to local motion in the glassy salt mixture system.
Original language | English (US) |
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Pages (from-to) | 1634-1637 |
Number of pages | 4 |
Journal | Chemistry of Materials |
Volume | 12 |
Issue number | 6 |
DOIs | |
State | Published - Jun 1 2000 |
ASJC Scopus subject areas
- General Chemistry
- General Chemical Engineering
- Materials Chemistry