fig1

Figure 1. Solid state structure of heterometallic molecular precursor [Li2Mn2(tbaoac)6] (1). Bridging M-O (M = Li, Mn) bonds are highlighted in blue. Hydrogen atoms are omitted for clarity. Single crystal growth of precursor 1 is shown in Supplementary Table 2. Detailed views of molecular structure 1, including thermal ellipsoids, are available in Supplementary Figure 2. Unit cell parameters, selected bond distances and angles of precursor 1 are recorded in Supplementary Tables 3 and 4.