Bis[N-(2-hydroxy­ethyl)ethyl­enediamine-κN,N′,O]Nickel(II) Squarate Monohydrate

Abstract

In the title compound, [Ni(C<inf>4</inf>H<inf>12</inf>N<inf>2</inf>O) <inf>2</inf>](C<inf>4</inf>O<inf>4</inf>)·H<inf>2</inf>O or [Ni(Hydet-en)<inf>2</inf>](Sq)·H<inf>2</inf>O, where Hydet-en is N-(2-hydroxyethyl)ethylenediamine and Sq is the squarate dianion, the Ni II centre has a distorted octahedral coordination geometry comprising four amine N and two hydroxyl O atoms from two tridentate Hydet-en ligands. All the O atoms of the squarate dianion are involved in N-H⋯O and O-H⋯O hydrogen bonding. © 2005 International Union of Crystallography Printed in Great Britain - all rights reserved.