Crystal structure of bis{2-[bis(2-hydroxyethyl)amino]ethanol-κ³O,N,O′}zinc terephthalate

Abstract

In the title salt, [Zn(C6H15NO3)2](C8H4O4), the ZnII cation, located on a centre of inversion, is coordinated by four O atoms and two N atoms from two tridentate 2-[bis­(2-hy­droxy­eth­yl)amino]­ethanol (BHEA) ligands, giving rise to a slightly distorted octa­hedral geometry. The terephthalate dianion, located about a centre of inversion, is not coordinated to ZnII but is connected through O—H⋯O contacts with [Zn(BHEA)2]2+ cations, leading to a three-dimensional crystal structure.

A Novel Cd(II) Isophthalate Complex with Triethanolamine: Crystal Structure, Fluorescence and Antimicrobial Activity

“…12,13 Some mononuclear mixed ligand complexes were reported for Ni(II) with TEA and orotic acid, 14 Cu(II) with TEA and malonic acid, 15 Zn(II) and Cd(II) with TEA and p-nitrobenzoic acid, 16 Zn(II) with TEA and aqua ligand, 17 Cu(II) with TEA, aqua and 1H-imidazole ligands, 18 aqua ligand. 19 Based on the collaborative use of TEA and phthalic acid, mononuclear complexes for Ni(II), 20 Zn(II), 21 Cd(II), 22 and coordination polymer for Cd(II) 23 were also reported. Although TEA has no specific physiological effects except for its low antibacterial activity, as an auxiliary ligand TEA may increase the physiological effect of bioactive substances in mixed ligand metal complexes.…”

X-ray structures of organic salts between diethanolamine and ortho- and para-isomers of aminobenzoic acid: A specific synthon responsible for an association of the components

“…Biological activity of ethanolamines may be enhanced through a coordination complex formation, especially with the participation of the benzoic acids as auxiliary ligands yielding mixedligand metal complexes. However, ethanolamines easily form chelated metal complexes and may inhibit an involvement of the not chelating auxiliary ligands to coordination sphere [8][9][10].…”