Browsing by Subject "Rigid materials"

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    Mechanical bonding of rigid MORFs using a tetratopic rotaxane
    (Royal Society of Chemistry, 2024-05-28) Saura Sanmartín, Adrián; Cutillas Font, Guillermo; Martinez-Cuezva, Alberto; Alajarín, Mateo; Esteban Betegón, Fátima; Pena Sánchez, Pilar; Gándara, Felipe; Berná Cánovas, José; Química Orgánica; Nuevas Arquitecturas en Quı´mica de Materiales, Instituto de Ciencia de Materiales de Madrid (ICMM-CSIC)
    The preparation of highly rigid cobalt(II)- and copper(II)–organic frameworks incorporating a tetralactam [2]rotaxane as a ligand is described. The interlocked ligand is functionalized with two pairs of carboxylate groups placed at each counterpart, thus limiting its dynamics within the crystal. The solid structure of the metal–organic rotaxane frameworks showed different, unprecedented polycatenation modes of grids, depending on the employed metal, providing great rigidity to the structures. This rigidity has been evaluated by using single crystal X-ray diffraction analyses of the cobalt(II)–organic frameworks embedded in different solvents, observing that the lattices remain unchanged. Thus, this research demonstrates that rigid and robust materials with permanent porosity can be achieved using dynamic ligands.