. . "Metal-organic frameworks (MOFs) are compounds consisting of metal ions or clusters coordinated to organic molecules to form one-, two-, or three-dimensional structures that can be porous. The organic molecules included are sometimes referred to as \"struts\", and include such examples as 1,4-benzenedicarboxylic acid (BDC).More formally, a metal\u2013organic framework is a coordination network with organic ligands containing potential voids."@en .