Moldavian Journal of the Physical Sciences (Dec 2019)
A hexanuclear Mn(II, III) pivalate cluster with a {Mn6O2} core
Abstract
A new [Mn6O2(O2CCMe3)10(HO2CCMe3)(EtOH)3]∙EtOH hexanuclear mixed-valent coordination compound with a {Mn6O2} core has been synthesized and characterized by single-crystal X-ray diffraction analysis. The central mixed-valence [MnII4MnIII2(M4-O2)]10+ core consists of six Mn centers, two MnIII and four MnII ions, arranged as two edge-sharing flattened Mn4 tetrahedra, with a M4-O2- ion in the center of each tetrahedron. Peripheral ligation is provided by pivalate and ethanol groups