ORGANOMETALLIC FRAMEWORK Russian patent published in 2021 - IPC C07F5/06 B01D53/28 

FIELD: chemistry.

SUBSTANCE: present invention relates to an organometallic framework containing a metal ion, a first ligand, a second ligand and an additional third ligand. Metal ion is an aluminium ion. First ligand is an organic compound ion consisting of a first heterocycle having two carboxyl groups, and the heteroatom forming the first heterocycle is present in the first ligand on the small-angle side of the angle created by the two carboxyl groups. Second ligand is an ion of an organic compound different from the first ligand and having two carboxyl groups, and a heteroatom which forms a second heterocycle is present in the second ligand on the large-angle side of the angle created by two carboxyl groups. Third ligand is an organic compound ion different from the first ligand and the second ligand and having two carboxyl groups. Concerning total amount of first ligand, second ligand and third ligand, first ligand is present with percentage content from more than 0 mol. % to 70 mol. %, second ligand is present with percentage content from more than 0 mol. % to 90 mol. % and third ligand is present with percentage content from 0 mol. % to 80 mol. %. Also disclosed are a chemical heat pump and a moisture control system which include said organometallic framework as a drying agent.

EFFECT: disclosed organometallic framework can both adsorb water vapour at low relative humidity and reduce the moisture content difference between humidity during adsorption and moisture during desorption.

7 cl, 14 dwg, 2 tbl, 16 ex