López Bueno, CarlosHerreros Lucas, CarlosBittermann, MariusAmigo Pombo, Alfredo JoséWoutersen, SanderGiménez López, María del CarmenRivadulla Fernández, José FranciscoSuárez Rodríguez, Manuel2024-01-302024-01-302021-01-08López Bueno, C., Herreros-Lucas, C., Suárez Rodríguez, M., Bitermann, M.R., Amigo, A., Woutersen, S., Giménez López, M., Rivadulla, F. (2021). A New Type of Supramolecular Fluid Based on H2O–Alkylammonium/Phosphonium Solutions, "Angew. Chem. Int. Ed.", vol. 60, 7540 – 75461433-7851http://hdl.handle.net/10347/32066Here we show that by adjusting the concentration of tetrabutyl ammonium and phosphonium salts in water (≈1.5–2.0 m), hydrophobic solvation triggers the formation of a unique, highly incompressible supramolecular liquid, with a dynamic structure similar to clathrates, involving essentially all H2O molecules of the solvent. Despite the increasing local order, the thermal diffusivity, and compressibility of these supramolecular liquids is strongly decreased with respect to bulk water due to slower relaxation dynamics. The results presented in this paper open an avenue to design a new family of supramolecular fluids, stable under atmospheric conditions, which can find important technological applications in energy storage and conversion.engCC BY-NC-ND 4.0 DEED Attribution-NonCommercial-NoDerivs 4.0 International.http://creativecommons.org/licenses/by-nc-nd/4.0/ElectrochemistryHydrophobic solvationLiquid clathrateSupramolecular fluidsThermal diffusivity230331 Química del aguajournal article/10.1002/ange.2020158001521-3773open access