Metal-organic framework

Patent metadata

Field	Value
Publication number	US-2024336636-A1
Application number	US-202218579439-A
Country	US
Kind code	A1
Filing date	Jul 15, 2022
Priority date	Jul 16, 2021
Publication date	Oct 10, 2024
Grant date	—

Abstract

A three-dimensional metal-organic framework, MOF, comprising a plurality of crystallographically-ordered heterolinkers, including a first linker and a second linker, respectively periodically arranged between metal nodes, defining cages having a plurality of mutually different window types, including a first window type and a second window type, therebetween, wherein the respective window types correspondingly comprise mutually different heterolinker arrangements.

First claim

1 . A three-dimensional metal-organic framework, MOF, comprising a plurality of crystallographically-ordered heterolinkers, including a first linker and a second linker, respectively periodically arranged between metal nodes, defining cages having a plurality of mutually different window types, including a first window type and a second window type, therebetween, wherein the respective window types correspondingly comprise mutually different heterolinker arrangements.

2 . The MOF according to claim 1 , wherein the respective window types have mutually different ratios of the first linker to the second linker.

3 . The MOF according to claim 2 , wherein the first window type comprises only the first linker.

4 . The MOF according to claim 1 , wherein the first linker is planarly arranged between the metal nodes.

5 . The MOF according to claim 1 , wherein the first linker and the second linker have mutually different lengths.

6 . The MOF according to claim 1 , wherein the first linker and the second linker have mutually different shapes.

7 . The MOF according to claim 1 , wherein the first linker and the second linker have mutually different side groups.

8 . The MOF according to claim 1 , defining a plurality of mutually different cage types, including a first cage type and a second cage type, having the plurality of mutually different window types therebetween.

9 . The MOF according to claim, wherein the metal nodes have a coordination number of 10 or 12.

10 . The MOF according to claim 1 , wherein the MOF has a fcu topology or a bct topology.

11 . The MOF according to claim 1 , wherein a molar ratio of the first linker to the second linker is 1:1, 2:1 or 4:1.

12 . The MOF according to claim 1 , wherein the first linker and/or the second linker is a ditopic linker.

13 . The MOF according to claim 1 , wherein the plurality of crystallographically-ordered heterolinkers includes a third linker, respectively periodically arranged between the metal nodes.

14 . The MOF according to claim 1 , wherein the metal is selected from Zr, Hf, Ti, a rare earth metal selected from a group consisting of Sc, Y, La, Ce, Pr, Nd, Pm, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu; or a mixture thereof.

15 . The MOF according to claim 1 :
wherein the plurality of heterolinkers, for example each of the plurality of heterolinkers, forms MOFs having the same type of network; or wherein the plurality of heterolinkers, for example each of the plurality of heterolinkers, has the same topicity; or wherein a distance between connection points thereof differs by at most a factor of 1.5 or 2 or 3.

16 . The MOF according to any previous claim 1 :
wherein the metal forms high connectivity clusters; and wherein the metal forms strong metal oxygen bonds.

17 . A single-step method of synthesising the MOF according to claim 1 , the method comprising:
preparing a solution comprising the metal and/or a precursor thereof and the plurality of heterolinkers, including the first linker and the second linker, and/or precursors thereof and optionally a modulator, dissolved in a solvent; heating the solution at a temperature in a range from 100° C. to 140° C., preferably in a range from 110° C. to 130° C. for example 120° C., for a time period in a range from 12 hours to 96 hours, preferably in a range from 24 hours to 72 hours, for example 48 hours; and collecting the synthesised MOF, optionally comprising cooling, washing and/or drying the synthesised MOF.

Assignees

• Univ Liverpool

Inventors

• Tollitt Adam
• Farmer Grace
• Stemple Eleanor
• Katsoulidis Alexandros
• Gaultois Michael
• Rosseinsky Matthew

Classifications

• B01J20/28073

  being in the range 0.5-1.0 ml/g · CPC title

• B01J20/28064

  being in the range 500-1000 m2/g · CPC title

• B01J20/3071

  Washing or leaching · CPC title

• B01J20/3085

  Chemical treatments not covered by groups B01J20/3007 - B01J20/3078 · CPC title

• B01J20/3078

  Thermal treatment, e.g. calcining or pyrolizing · CPC title