title: Self-assembly of a nonanuclear nickel(II) complex and its magnetic properties.
abstract: A nonanuclear nickel(II) complex [Ni9(PyA)(10)(mu3-OH)2(mu2-OH)2(mu2-OH2)2(H2O)6](ClO4)4.12H2O, containing pyridine-2-aldoximato monoanion, PyA, has been structurally and magnetochemically characterized. The nickel(II) ions, linked together via several bi- or trifurcated oximato, hydroxo, and water bridges, are antiferromagnetically coupled with the coupling constants J1 = -26.5 cm(-1) and J2 = -7.0 cm(-1), resulting in a ground state of S(t) = 1.
authors.affiliation: Institute for Inorganic and Analytical Chemistry, University of Mainz, D-55128 Mainz, Germany.
authors.forename: Sumit
authors.initials: S
authors.lastname: Khanra
authors.forename: Thomas
authors.initials: T
authors.lastname: Weyhermüller
authors.forename: Eva
authors.initials: E
authors.lastname: Rentschler
authors.forename: Phalguni
authors.initials: P
authors.lastname: Chaudhuri