Metal-organic framework materials
The present disclosure provides novel metal-organic framework materials (MOFs) useful, for example, for gas adsorption, storage, and/or separation. Also provided are methods of making the MOFs, articles of manufacture incorporating the MOFs and methods for making these, as well as methods of using the MOFs.
1. An isolated metal-organic framework material (MOF) comprising:
zinc (Zn); and
at least one ligand comprising the structure Ar(R 1 HR′)(R 2 H)(R 3 ) or a partly deprotonated form thereof or a completely deprotonated form thereof, wherein:
Ar comprises an aromatic ring or multi-ring structure;
R 1 is an element bonded to Ar, hydrogen (H), and R′;
R′ is selected from the group consisting of H, CH 3 , and C 2 H 5 ;
R 2 is different from R 1 and is an element bonded to Ar and hydrogen (H);
R 1 HR′ and R 2 H are ortho to each other;
R 3 is meta to R 1 and para to R 2 ; and
R 3 is bonded to Ar and comprises a structure that coordinates with the zinc, wherein R 3 is selected from the group consisting of an Ar(R 1 HR′)(R 2 H) moiety, C(═O)OH, OH, SH, NH 2 , NHR′, and a heterocyclic ring.
2. The MOF of claim 1 , wherein R 1 is selected from the group consisting of nitrogen (N), phosphorus (P), arsenic (As), antimony (Sb), and bismuth (Bi).
3. The MOF of claim 1 , wherein R 2 is selected from the group consisting of oxygen (O), sulfur (S), selenium (Se), tellurium (Te), and polonium (Po).
4. The MOF of claim 3 , wherein R 2 is O.
5. The MOF of claim 1 , wherein R 3 is C(═O)OH.
6. The MOF of claim 1 , wherein R 1 is N.
7. The MOF of claim 1 , wherein R′ is H.
8. The MOF of claim 1 , wherein Ar is a non-benzene aromatic ring.
9. The MOF of claim 1 , wherein the external volume of the MOF increases by more than 10% after adsorption of a substance by the MOF, as compared to the volume of the MOF after activation, but prior to adsorption.
10. An isolated metal-organic framework material (MOF) comprising:
zinc; and
at least one ligand, wherein the at least one ligand is 3-amino-4-hydroxybenzoic acid or a partly deprotonated form thereof or a completely deprotonated form thereof.
11. The MOF of claim 10 , wherein the at least one ligand is coordinated with the zinc at a position on an aromatic ring of the ligand, and wherein the position on the aromatic ring is meta to the amino group on the 3-amino-4-hydroxybenzoic acid and para to the hydroxy group on the 3-amino-4-hydroxybenzoic acid.