To provide a covalent binding organic structure having enhanced durability and increased adsorption amount of gas.SOLUTION: There is provided a covalent binding organic structure in which a nitrogen-containing cluster containing a nitrogen atom and a polydentate core part are continuously bound by a covalent bond, in which the nitrogen atom contained in the nitrogen-containing cluster and a carbon atom contained in the polydentate core part are covalently bound to be constituted as a crystalline particle, a plurality of kinds of nitrogen-containing clusters exist in the particle, the nitrogen-containing cluster contains one benzene ring or acene in which a plurality of benzene rings are condensed, in a molecule There is provided an adsorbent having a structure in which the adsorbent is water or a volatile organic compound.SELECTED DRAWING: Figure 1
展开▼