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Crystal Structures, Magnetism, and Dye Degradation Catalytic Properties of Copper 2‐Methoxycarboxybenzoate Coordination Complexes
Author(s) -
Jia Jason,
LaDuca Robert L.
Publication year - 2019
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/zaac.201900207
Subject(s) - isonicotinamide , coordination polymer , copper , antiferromagnetism , crystallography , crystal structure , chemistry , catalysis , magnetism , ligand (biochemistry) , degradation (telecommunications) , polymer chemistry , hydrogen bond , molecule , organic chemistry , physics , receptor , biochemistry , quantum mechanics , condensed matter physics , telecommunications , computer science
Copper coordination complexes containing the 2‐methoxycarboxybenzoate (2‐mcob) ligand show different topologies depending on the nature of the dipyridyl coligand. [Cu 2 (2‐mcob) 2 (ebin)] n ( 1 ) [ebin = ethanebis(isonicotinamide)] shows a ladder structure based on anti‐syn bridged [Cu(OCO)] n chain motifs. [Cu 2 (2‐mcob) 2 (bbin)(H 2 O) 2 ] ( 2 ) [bbin = butanebis(isonicotinamide)] displays a dimeric molecular structure. [Cu 2 (2‐mcob) 2 (hbin)] n ( 3 ) [hbin = hexanebis(isonicotinamide)] manifests a ladder structure very similar to that of 1 . {[Cu(2‐mcob)(dpa)] · H 2 O} n ( 4 ) [dpa = bis(4‐pyridyl)amine] shows a chain coordination polymer structure. All four materials showed significant promise as heterogeneous degradation catalysts for Congo Red dye in aqueous suspension under ultraviolet irradiation. Variable temperature magnetic susceptibility experiments for 1 indicated the presence of weak antiferromagnetic exchange ( g = 2.059(2), J = –0.84(2) cm –1 ). Thermal degradation behavior is also discussed.