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Incorporation of μ3-CO3 into an Mn III/MnIV Mn12 cluster: {[(cyclam)Mn IV(μ-O)2MnIII(H2O)(μ-OH)] 6(μ3-CO3)2}Cl8· 24H2O

  • Author(s): Levaton, BB
  • Olmstead, MM
  • et al.

The centrosymmetric title cluster, hexaaquadi-3-carbonatohexacyclamhexa- μ2-hydroxido-dodeca-μ2-oxido-hexamanganese(IV) hexa-manganese(III) octa-chloride tetra-cosa-hydrate, [Mn12(CO 3)2O12(OH)6(C10H 24N4)6(H2O)6]Cl 8·24H2O, has two μ3-CO3 groups that not only bridge octahedrally coordinated MnIII ions but also act as acceptors to two different kinds of hydrogen bonds. The carbonate anion is planar within experimental error and has an average C - O distance of 1.294 (4) Å. The crystal packing is stabilized by O - H⋯Cl, O - H⋯O, N - H⋯Cl and N - H⋯O hydrogen bonds. Two of the four independent chloride ions are disordered over five positions, and eight of the 12 independent water molecules are disordered over 21 positions.

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