Improvement of the industrial electrolytic process for aluminum production necessitates a thorough understanding of the underlying ionic structure of the electrolyte, which mainly comprises NaF and AlF3 at around 965 °C. The chemical and physical properties of this melt strongly depend on the aluminum speciation, which requires a multipronged approach in order to clarify its properties. Here we parametrize a new polarizable ion model (PIM) interatomic potential for the molten NaF–AlF3 system, which is used to study the liquid properties up to 50 mol % of AlF3 at high temperatures. The potential parameters are obtained by force fitting to density functional theory (DFT) reference data. Molecular dynamics (MD) simulations are combined with further DFT calculations to determine NMR chemical shifts for 27Al, 23Na, and 19F. An excellent agreement is obtained with experimental values. This enables the study of the dynamic properties of the melts such as viscosity, electrical conductivity, and self-diffusion coefficient.

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N,N,N-Tri(1-pyrazolyl)methane europium complexes, [Eu{HC(pz) 3 }(H 2 O) 6 ]Cl 3 , encapsulated with polymethyl methacrylate (PMMA) gel, polyvinyl acetate (PVA) gel or hexagonal mesoporous silica-PVA (HMS-PVA), have been synthesized, by using a sol-gel technique, as hybrid materials. The geometric structure of the new Eu complex has been confirmed by single crystal X-ray analysis. The hybrid Eu-PVA sample has performed the most effective unit mass luminescence emission with a longer lifetime 444 ms, higher quantum efficiency, greater thermal stability and better exposure durability in comparison to the other Eu-PMMA (379 ms) and Eu-HMS-PVA (55 ms) samples. The characterization results support that these hybrid polymers have made a proper network structure with the Eu 3+ complex and act as antennae for the transfer of energy to the central Eu 3+ ions, and could be use for enhanced OLED light.