Porous crystal comprising ammonia borane and a production method therefor

1. A porous crystal comprising ammonia borane, wherein the ammonia borane is chemically bonded thereto by a chemical reaction while a porous crystal structure is maintained.

2. The porous crystal comprising ammonia borane according to claim 1 , wherein the porous crystal structure is a metal-organic framework or a covalent organic framework.

3. The porous crystal comprising ammonia borane according to claim 2 , wherein the metal-organic framework comprises an organic ligand and a metal ion, and has a porous framework in which the organic ligand is chemically bonded to two or more metal ions, and the chemically bonded metal ion is serially chemically bonded to one or more other organic ligands.

4. The porous crystal comprising ammonia borane according to claim 2 , wherein the covalent organic framework comprises an organic ligand, and has a porous framework in which the organic ligand is chemically bonded to two or more the same or different organic ligands, and the chemically bonded organic ligand is serially chemically bonded to two or more other organic ligands.

5. The porous crystal comprising ammonia borane according to claim 3 , wherein the metal-organic framework is represented by the following Formula 1:

[(M a O b )(L 1 ) c (L 2 ) d ] z   [Formula 1]

wherein M is one or more metals selected from the group consisting of metal belonging to Groups 3 to 16, lanthanium metal, and actinium metal,

L 1 and L 2 are each independently

R 1 to R 65 are independently H; NH 2 ; NHNH 2 ; OH; COOH; CHO; CN; Cl; Br; I; NCO; OCN; NCSNH 2 ; alkyl that is substituted or unsubstituted by NH 2 , NHNH 2 , OH, COOH, CHO, CN, Cl, Br, I, (C═O) 2 O, (C═O) 2 NH, NCO, OCN or NCS; alkoxy; a functional group including sulfur; a functional group including Si; nitro; a functional group including boron; a functional group including phosphorus or an ester group,

adjacent two of R 1 to R 65 groups may form a (C═O) 2 O (carboxylic acid anhydride) group or a (C═O) 2 NH (imide) group,

in each L1 and L2, at least one of R 1 to R 65 is NH 2 , OH, COOH, CHO, CN, Cl, Br, I, (C═O) 2 O, (C═O) 2 NH, NCO, OCN, NCS, or alkyl substituted with OH, COOH, CHO, CN, Cl, Br, I, NCO, OCN or NCS,

z is an integer of 1 to ∞, a is 0<a≦100, b is 0≦b≦100, c is 0≦c≦300, d is 0≦d≦300, and at least one of c and d is not 0.

6. The porous crystal comprising ammonia borane according to claim 5 , wherein the metal-organic framework is represented by the following Formula 2 or Formula 3:

wherein n is an integer of 1 to ∞.

7. The porous crystal comprising ammonia borane according to claim 6 , which is represented by any one of the following Formula 4 to Formula 7:

wherein n is an integer of 1 to ∞.

8. The porous crystal comprising ammonia borane according to claim 4 , wherein the covalent organic framework a linear or cyclic boron-containing cluster represented by the following Formula 8 or Formula 9:

wherein

Q 1 to Q 5 are each independently an element belonging to Group 15 or 16 of a periodic table, with proviso that when Q1 to Q2 are each independently an element of Group 15, R 1 to R 5 are each independently hydrogen, a C 1 -C 12 alkyl group, a C 6 -C 12 aryl group, or halogen, and when Q 1 to Q 5 are each independently an element of Group 16, R 1 to R 5 do not exist.

9. The porous crystal comprising ammonia borane according to claim 8 , wherein the linear or cyclic boron-containing cluster is represented by the following Formulas:

10. The porous crystal comprising ammonia borane according to claim 8 , wherein the linear or cyclic boron-containing cluster is covalently bound to the same or different two or three aromatic cycle groups to form a building block.

11. The porous crystal comprising ammonia borane according to claim 10 , wherein the aromatic cycle group is represented by any one of the following Formula 10 to Formula 14:

wherein

D 1 to D 47 are each independently a group selected from the group consisting of hydrogen; a C 1 -C 12 alkyl group; a C 1 -C 12 alkyl group substituted with one or more substituent groups selected from the group consisting of NH 2 , NHNH 2 , OH, COOH, CHO, CN, Cl, Br, I, (C═O) 2 O, (C═O) 2 NH, NCO, OCN, and NCS; a C 6 -C 12 aryl group; a C 1 -C 12 alkoxy group; NH 2 ; NHNH 2 ; OH; COOH; CHO; CN; Cl; Br; I; (C═O) 2 O; (C═O) 2 NH; NCO; OCN; NCS; a functional group including sulfur; a functional group including Si; nitro group; a functional group including boron; a functional group including phosphorus; and an ester group,

T is an element that can form a regular tetrahedron structure, and

in each aromatic cycle group, at least one of D 1 to D 47 should be NH 2 ; OH; COOH; CHO; CN; Cl; Br; I; (C═O) 2 O; (C═O) 2 NH; NCO; OCN; NCS; or a C 1 -C 12 alkyl group substituted with one or more substituent groups selected from the group consisting of NH 2 , OH, COOH, CHO, CN, Cl, Br, I, (C═O) 2 O, (C═O) 2 NH, NCO, OCN, and NCS.

12. The porous crystal comprising ammonia borane according to claim 11 , which is represented by any one of the following Formula 19 to Formula 24:

13. The porous crystal comprising ammonia borane according to claim 1 , which is used as a storage material of hydrogen.

14. A method for producing a porous crystal comprising ammonia borane, comprising:

preparing a porous crystal having a metal-organic framework or a covalent organic framework comprising primary amine; and

adding borane or a borane derivative to the porous crystal to bind the borane to an organic ligand of the porous crystal.

15. A method for producing a porous crystal comprising ammonia borane, comprising:

preparing a porous crystal having a metal-organic framework or a covalent organic framework;

adding an additional material, which can form primary amine group by being chemically bonded to the organic ligand of the porous crystal to the porous crystal, to form a porous crystal including the primary amine group; and

adding borane or a derivative thereof to the porous crystal including the primary amine group obtained in the above-step to chemically bond the borane to the primary amine group.