Compositions and methods comprising conductive metal organic frameworks and uses thereof
Compositions and methods comprising metal organic frameworks (MOFs) and related uses are generally provided. In some embodiments, a MOF comprises a plurality of metal ions, each coordinated with at least one ligand comprising at least two sets of ortho-diimine groups arranged about an organic core.
1. A method of synthesizing a porous metal organic framework (MOF) comprising:
exposing a plurality of metal ions to a plurality of precursor ligands in the presence of an oxidant and a base, thereby forming a MOF comprising a portion of the plurality of metal ions each coordinated with at least one ligand,
wherein each precursor ligand comprises at least two sets of ortho-diamine groups arranged about an organic core and comprises the structure:
wherein n is 1, 2, or 3, and C represents one or more bonds formed between ring A and each ring B, and
wherein each ligand comprises at least two sets of ortho-diimine groups arranged about the organic core.
2. The method of claim 1 , wherein the base is selected from the group consisting of NH 3 and NH 4 OH.
3. The method of claim 1 , wherein the oxidant is selected from the group consisting of air, oxygen, ferricinium, nitrosonium, Ag 2+ , and Ag + .
4. The method of claim 1 , wherein the plurality of metal ions are exposed to the plurality of precursor ligands as a salt.
5. The method of claim 4 , wherein the salt is selected from the group consisting of a chloride salt, a fluoride salt, a bromide salt, an iodide salt, a NO 3 − salt, a SO 4 2− salt, and a ClO 4 − salt.
6. The method of claim 1 , wherein the ligand comprising at least two sets of ortho-diimine groups arranged about the organic core is formed by oxidizing the precursor ligand comprising at least two sets of ortho-diamine groups arranged about the organic core.
7. The method of claim 6 , wherein the precursor ligand comprising at least two sets of ortho-diamine groups arranged about the organic core comprises the structure:
wherein:
each R 1 is the same or different and is selected from the group consisting of hydrogen, —NO 2 , —R′, —F, —Cl, —Br, —I, —CN, —NC, —SO 3 R′, —SO 3 H, —OR′, —OH, —SR′, —SH, —PO 3 R′, —PO 3 H, —CF 3 , —NR′ 2 , —NHR′, and —NH 2 ; and
each R′ is the same or different and is optionally substituted alkyl or optionally substituted aryl.
8. The method of claim 7 , wherein each R 1 is hydrogen.