Manganese(III,IV) and manganese(III) oxide clusters trapped by copper(II) complexes

Yamashita S; Shiga T; Kurashina M; Nihei M; Nojiri H; Sawa H; Kakiuchi T; Oshio H

Inorganic Chemistry, Vol.46, No.10, 3810-3812, 2007

Yamashita S, Shiga T, Kurashina M, Nihei M, Nojiri H, Sawa H, Kakiuchi T, Oshio H

Reactions of quinquedentate Schiff base ligands with Mn and Cu ions afforded icosa- and hexadecanuclear mixed-metal clusters in which dinuclear Cu-II complexes trapped oxo-bridged [(Mn8Mn4O12)-Mn-III-O-IV] and [(Mn6O6)-O-III] cores, respectively. Maximum entropy method analysis for synchrotron X-ray diffraction data was used to determine the oxidation states of the Mn ions.