title: A cationic 24-MC-8 manganese cluster with ring metals possessing three oxidation states [Mn(II)4Mn(III)6Mn(IV)2(mu4-O)2(mu3-O)4(mu3-OH)4(mu3-OCH3)2(pko)12](OH)(ClO4)3.
abstract: Reaction of Mn(ClO4)2 with di-pyridyl ketone oxime, (2-py)2C=NOH, gives the novel cluster [Mn(II)4Mn(III)6Mn(IV)2(mu4-O)2(mu3-O)4(mu3-OH)4(mu3-OCH3)2(pko)12](OH)(ClO4)3 1. It is the only example of a 24-MC-8, and the first metallacrown with ring metal ions in three different oxidation states. Magnetic measurements show antiferromagnetic behavior.
authors.affiliation: Department of Chemistry, Aristotle University of Thessaloniki, Thessaloniki 54124, Greece.
authors.forename: Catherine
authors.initials: C
authors.lastname: Dendrinou-Samara
authors.forename: Curtis M
authors.initials: CM
authors.lastname: Zaleski
authors.forename: Andri
authors.initials: A
authors.lastname: Evagorou
authors.forename: Jeff W
authors.initials: JW
authors.lastname: Kampf
authors.forename: Vincent L
authors.initials: VL
authors.lastname: Pecoraro
authors.forename: Dimitris P
authors.initials: DP
authors.lastname: Kessissoglou