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

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.