title: Template synthesis and single-molecule magnetism properties of a complex with spin S = 16 and a [Mn8O8]8+ saddle-like core.
abstract: The compound [CeIVMnIII8O8(O2CMe)12(H2O)4].4H2O (1.4H2O) has been obtained from a template synthesis involving the reaction of the chain polymer {[MnIII(OH)(O2CMe)2] .(MeCO2H).(H2O)}n (3) with Ce(IV). Compound 1 contains a MnIII8 loop inside which is held the Ce(IV) ion by the bridging oxide ions. Magnetization and magnetic susceptibility studies establish that 1 has an S = 16 spin ground state, the largest yet for a Mn cluster, and displays the slow magnetization relaxation and hysteresis behavior of a single-molecule magnet (SMM). It is thus the highest spin Mn SMM discovered to date.
authors.affiliation: Department of Chemistry, University of Florida, Gainesville, FL 32611-7200, USA.
authors.forename: Anastasios J
authors.initials: AJ
authors.lastname: Tasiopoulos
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Wernsdorfer
authors.forename: Brian
authors.initials: B
authors.lastname: Moulton
authors.forename: Michael J
authors.initials: MJ
authors.lastname: Zaworotko
authors.forename: George
authors.initials: G
authors.lastname: Christou