Gracia, David Cuartero, Vera Popescu, Catalin Trapali, Adelais Mallah, Talal Boillot, Marie-Laure Blasco, Javier Subías, Gloria Evangelisti, Marco Room-temperature barocaloric effect in [Fe(pap-5NO<sub>2</sub>)<sub>2</sub>] spin-crossover material J. mater. chem. A 10.1039/d5ta00033e 2025 2025