Bis[N-(2-hydroxyethyl)ethylenediamine-kappa N-3,N ',O]nickel(II) squarate monohydrate

Abstract

In the title compound, [Ni(C4H12N2O)(2)](C4O4)center dot H2O or [Ni(Hydet-en)(2)](Sq)center dot H2O, where Hydet-en is N-(2-hydroxy-ethyl) 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 ldianion are involved in N-H center dot center dot center dot O and O-H center dot center dot center dot O hydrogen bonding.