title: Reactivity in polynuclear transition metal chemistry as a means to obtain high-spin molecules: substitution of mu 4-OH- by eta 1,mu 4-N3- increases nine times the ground-state S value of a nonanuclear nickel(II) cage.
abstract: The reaction of di-2-pyridyl ketone, (2-py)2CO, with Ni(O2CMe)(2).4H2O yields the cage [Ni9(OH)2(O2CMe)8((2-py)2CO2)4], which reacts further with N3- ions to give the structurally similar cluster [Ni9(N3)2(O2CMe)8((2-py)2CO2)4] containing extremely rare eta 1,mu 4-N3- groups; magnetic studies reveal that the spin ground state of the latter is nine times the ground state of the former.
authors.affiliation: Department of Chemistry, University of Patras, 26504 Patras, Greece.
authors.forename: G S
authors.initials: GS
authors.lastname: Papaefstathiou
authors.forename: A
authors.initials: A
authors.lastname: Escuer
authors.forename: R
authors.initials: R
authors.lastname: Vicente
authors.forename: M
authors.initials: M
authors.lastname: Font-Bardia
authors.forename: X
authors.initials: X
authors.lastname: Solans
authors.forename: S P
authors.initials: SP
authors.lastname: Perlepes