title: Crystal structure of bis-{2-[bis-(2-hy-droxy-eth-yl)amino]-ethanol-κ(3) O,N,O'}zinc terephthalate.
abstract: In the title salt, [Zn(C6H15NO3)2](C8H4O4), the Zn(II) cation, located on a centre of inversion, is coordinated by four O atoms and two N atoms from two tridentate 2-[bis-(2-hy-droxy-eth-yl)amino]-ethanol (BHEA) ligands, giving rise to a slightly distorted octa-hedral geometry. The terephthalate dianion, located about a centre of inversion, is not coordinated to Zn(II) but is connected through O-H⋯O contacts with [Zn(BHEA)2](2+) cations, leading to a three-dimensional crystal structure.
authors.affiliation: Department of Ophthalmology, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, People's Republic of China.
authors.forename: Ya-Ping
authors.initials: YP
authors.lastname: Li
authors.affiliation: Department of Orthopedics, The China-Japan Union Hospital of Jilin University Changchun, Changchun 130033, People's Republic of China.
authors.forename: Hu
authors.initials: H
authors.lastname: Zang
authors.affiliation: Department of Vascular Surgery, The China-Japan Union Hospital of Jilin University, Changchun 130033, People's Republic of China.
authors.forename: Dajun
authors.initials: D
authors.lastname: Sun
authors.affiliation: St Erik's Eye Hospital, Karolinska Institutet, Polhemsgatan 50, SE-112 82 Stockholm, Sweden.
authors.forename: Julia
authors.initials: J
authors.lastname: Ming
authors.affiliation: Department of Ophthalmology, The Second Hospital of Jilin University, 218 Ziqiang Street, Changchun 130041, People's Republic of China.
authors.forename: Guan-Fang
authors.initials: GF
authors.lastname: Su
keywords: chelate; crystal structure; hydrogen bonding; terephthalate