Tunable rare-earth fcu-metal-organic frameworks

Patent metadata

Field	Value
Publication number	US-9920076-B2
Application number	US-201514919238-A
Country	US
Kind code	B2
Filing date	Oct 21, 2015
Priority date	Sep 5, 2013
Publication date	Mar 20, 2018
Grant date	Mar 20, 2018

Abstract

Metal organic framework compositions can have a face centered cubic structure.

First claim

What is claimed is:

1. A metal-organic framework composition, comprising:
one or more of a hexanuclear metal cluster, each hexanuclear metal cluster comprising one or more of a rare earth metal ion; and
one or more of a bidentate ligand.

2. The composition of claim 1 , wherein the hexanuclear metal cluster is characterized by the formula [RE 6 (μ 3 -OH) 8 (O 2 C—) 6 N 4 C—) 6 ].

3. The composition of claim 1 , wherein the hexanuclear metal cluster is characterized by the formula [RE 6 (μ 3 -OH) 8 (O 2 C—) 12 ].

4. The composition of claim 1 , wherein the rare earth metal ion comprises one or more of cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium, or yttrium.

5. The composition of claim 1 , wherein the bidentate ligand includes one or more of a carboxylate, tetrazolate, triazolate, or pyrazolate.

6. The composition of claim 1 , wherein the bidentate ligand comprises one or more of the following ligands:
2-fluoro-4-(1H-tetrazol-5-yl)benzoate (FTZB),
4-(1H-tetrazol-5-yl)benzoate (TZB),
3-fluoro-4′-(2H-tetrazol-5-yl)biphenyl-4-carboxylate (FTZBP),
3-fluorobiphenyl-4,4′-dicarboxylate (FBPDC), or
3,3′-difluorobiphenyl-4,4′-dicarboxylate (DFBPDC).

7. The composition of claim 1 , wherein the bidentate ligand has two anionic binding groups.

8. The composition of claim 7 , wherein the two anionic binding groups are the same.

9. The composition of claim 7 , wherein the two anionic binding groups are different.

10. The composition of claim 7 , wherein the two anionic binding groups are linked by one or more of an aromatic group or hydrophobic group.

11. The composition of claim 1 , wherein the hexanuclear metal cluster and bidentate ligand associate to form a face-centered cubic topology.

12. A method of making a metal-organic framework, comprising:
contacting one or more of a hexanuclear metal cluster, each hexanuclear metal cluster comprising one or more of a rare earth metal ion, with one or more of a bidentate ligand.

13. The method of claim 12 , wherein the hexanuclear cluster is characterized by the formula [RE 6 (μ 3 -OH) 8 (O 2 C—) 6 N 4 C—) 6 ].

14. The method of claim 12 , wherein the hexnuclear metal cluster is characterized by the formula [RE 6 (μ 3 -OH) 8 (O 2 C—) 12 ].

15. The method of claim 12 , wherein the rare earth metal ion includes one or more of cerium, dysprosium, erbium, europium, gadolinium, holmium, lanthanum, lutetium, neodymium, praseodymium, promethium, samarium, scandium, terbium, thulium, ytterbium, or yttrium.

16. The method of claim 12 , wherein the bidentate ligand includes one or more of a carboxylate, tetrazolate, triazolate, or pyrazolate.

17. The method of claim 12 , wherein the bidentate ligand comprises one or more of the following ligands:
2-fluoro-4-(1H-tetrazol-5-yl)benzoate (FTZB),
4-(1H-tetrazol-5-yl)benzoate (TZB),
3-fluoro-4′-(2H-tetrazol-5-yl)biphenyl-4-carboxylate (FTZBP),
3-fluorobiphenyl-4,4′-dicarboxylate (FBPDC), or
3,3′-difluorobiphenyl-4,4′-dicarboxylate (DFBPDC).

18. The method of claim 12 , wherein the bidentate ligand has two anionic binding groups.

19. The method of claim 18 , wherein the two anionic binding groups are linked by one or more of an aromatic group or hydrophobic group.

20. The method of claim 13 , wherein the hexanuclear metal cluster and bidentate ligand associate to form a face-centered cubic topology.

Assignees

• Univ King Abdullah Sci & Tech

Inventors

• Eddaoudi Mohamed
• Xue Dong-Xu
• Cairns Amy J
• Belmabkhout Youssef

Classifications

• C07F5/00 Primary

  Compounds containing elements of Groups 3 or 13 of the Periodic Table · CPC title

• B01J20/226

  Coordination polymers, e.g. metal-organic frameworks [MOF], zeolitic imidazolate frameworks [ZIF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F) · CPC title

• C07C51/418

  Preparation of metal complexes containing carboxylic acid moieties · CPC title

• B01J31/1691

  Coordination polymers, e.g. metal-organic frameworks [MOF] (preparation of metal complexes containing carboxylic acid moieties C07C51/418; MOF's per se C07F) · CPC title

• Y02C20/40

  of CO2 · CPC title