High nuclearity molecular species exhibiting spin frustration: fusion of two MnIII4O2 butterfly complexes to yield an intermediate spin ground state MnIII7O4 complex
Abstract
The preparation and characterization of (NEt4)[Mn7O4(OAc)10(dbm)4]·3CH2Cl2·2C6H14(1·3CH2Cl2·2C6H14)(H dbm = dibenzoylmethane)are reported; the MnIII7O4 core of 1 consists of two Mn4O2 butterfly units fused together by sharing of one wing-tip manganese atom and it is shown using magnetization data that complex 1 has either an S= 3 or S= 4 ground state.