METAL COMPLEX AND ADSORBENT MATERIAL, STORAGE MATERIAL, AND SEPARATING MATERIAL COMPRISING SAME

摘要

The problem of providing a metal complex having excellent gas adsorption performance, gas storage performance, and gas separation performance is solved by a metal complex comprising a dicarboxylic acid compound (I) including 20 to 99 mole % of a dicarboxylic acid compound (I-1) selected from terephthalic acid derivatives having an electron-donating group in the 2nd position such as 2-methoxyterephthalic acid, 2-methylterephthalic acid, and terephthalic acid, and 80 to 1 mole % of a dicarboxylic acid compound (I-2) selected from terephthalic acid derivatives having an electron-withdrawing group in the 2nd position such as 2-nitroterephthalic acid, 2-fluoroterephthalic acid, 2-chloroterephthalic acid, 2-bromoterephthalic acid, and 2-iodoterephthalic acid; at least one kind of metal ion selected from metal ions belonging to Group 2 and Groups 7 to 12 of the periodic table; and an organic ligand capable of bidentate binding to the metal ion.

主权项

1. A metal complex comprising:
two different dicarboxylic acid compounds (I-1) and (I-2) each of which is a dicarboxylic acid compound (I) of formula (I), wherein
X is a hydrogen atom, an alkyl group that may have a substituent, an alkoxy group, a formyl group, an acyloxy group, an alkoxycarbonyl group, a nitro group, an amino group, a monoalkyl amino group, a dialkyl amino group, an acylamino group, or a halogen atom,R1, R2, and R3 are the same or different, and are each independently a hydrogen atom, an alkyl group that may have a substituent, or a halogen atom, and X of the dicarboxylic acid compound (I-1) is an electron-donating group, and X of the dicarboxylic acid compound (I-2) is an electron-withdrawing group; at least one kind of metal ion selected from metal ions belonging to Group 2 and Groups 7 to 12 of the periodic table; and an organic ligand capable of bidentate binding to the metal ion, wherein a molar ratio of the dicarboxylic acid compound (I-1) to the dicarboxylic acid compound (I-2) is from 20:80 to 99:1.