Water-Ammonia-Methane icy mixtures at high pressures and temperatures: implications for astrochemically relevant environments

Although extremely interesting for numerous astrochemical contexts, complex ternary ice mixtures are poorly studied due to the great difficulties in controlling their composition. In particular, the mixture involving water, ammonia and methane is especially promising not only for its presence on icy satellites like Titan but also in the framework of prebiotic chemistry. Following some intriguing preliminary results obtained through spectroscopy at LENS, we aim to study the structural evolution of a ternary H2O/NH3/CH4 mixture in DACs in the 1-50 GPa P range at different T (room T, 450 K, 650 K).