title: Monoclinic and triclinic forms of bis[2-hydroxy-2,2-bis(2-pyridyl)ethanoato-O(1),N,N']nickel(II).
abstract: Reaction of pyridoin with nickel nitrate in methanol in air gives crystals of two forms of the title compound, [Ni(C(12)H(9)N(2)O(3))(2)]; a triclinic form with the Ni atom on an inversion centre and a monoclinic form with one molecule in a general position in the asymmetric unit. Both forms show an octahedral nickel centre coordinated by two facial tridentate ligands with their O-atom donors trans.
authors.affiliation: School of Chemistry, University of Melbourne, Victoria 3052, Australia.
authors.forename: B F
authors.initials: BF
authors.lastname: Abrahams
authors.forename: B F
authors.initials: BF
authors.lastname: Hoskins
authors.forename: T A
authors.initials: TA
authors.lastname: Hudson
authors.forename: R
authors.initials: R
authors.lastname: Robson