Blurring the lines between MOF and HOF: Permanently porous hydrogen-bonded framework UNAM-2 based on a Cu13 metal-organic anion and a diamidinium cation - Mena-Valero, Marco Vinicio; Cardona-Gonzalez, Daniela; Velasquez-Hernandez, Miriam de J; Martinez-Ahumada, Eva; Chanut, Nicolas; Sanchez-Gonzalez, Eli; Percastegui, Edmundo G; Ameloot, Rob; Jancik, Vojtech (Materials Today Chemistry, 2025)