title: Aqua-(imino-diacetato-κO,N,O')(1,10-phenanthroline-κN,N')zinc(II) sesquihydrate.
abstract: The imino-diacetate dianion in the title compound, [Zn(C(4)H(5)NO(4))(C(12)H(8)N(2))(H(2)O)]·1.5H(2)O, chelates to the Zn(II) center with its N and two O atoms. The metal atom is also chelated by the N-heterocycle and coordinated by one water molecule, leading to a distorted octahedral environment. The dianion, and coordinated and uncoordinated water mol-ecules inter-act through O-H⋯O hydrogen bonds, generating a three-dimensional network. One of the two uncoordinated water mol-ecules has half-site occupancy. The crystal studied was a non-merohedral twin with a 15% twin component.
authors.forename: Hwa Loong
authors.initials: HL
authors.lastname: Ng
authors.forename: Chew Hee
authors.initials: CH
authors.lastname: Ng
authors.forename: Seik Weng
authors.initials: SW
authors.lastname: Ng