Patent ID: 8222179

Claim:
A coordination polymer comprising: a plurality of metal atoms or metal clusters, and a plurality of organic linking ligands, each linking ligand comprising residues of a negatively charged polydentate ligand, the plurality of multidentate ligands comprising: a first linking ligand having a first organic hydrocarbon backbone and a first length; and a second ligand having a second hydrocarbon backbone and a second length, the first hydrocarbon backbone being different than the second hydrocarbon backbone, the first and second lengths differing by at least 4 angstroms, wherein the coordination polymer exhibits 2- or 3-dimensional order and each metal cluster comprises one or more metal ions with the organic linking ligands partially or fully compensating charges of the metal ions and the first linking ligand and the second linking ligand are each independently described by formula I: X n Y I wherein X is a functional group; n is an integer that is equal or greater than 2; and Y is a hydrocarbon group or a hydrocarbon group having one or more atoms replaced by a heteroatom and wherein the coordination polymer has a pore volume per gram greater than about 0.1 cm 3 /g.