Cage-like manganesephenylsiloxane with an unusual structure

A polyhedral (manganese,sodium)phenylsiloxane of the composition (C6H5SiO1,5)(20)(MnO)(8)(NaO0,5)(12)center dot 2NaOH center dot 15C(2)H(5)OH center dot 11 H2O (the molecular formula is C150H214Mn8Na14O72Si20) was synthesized. This compound possesses the earlier undescribed shape of the cage and a rare combination of silanolate anions Si-O- and metalloxide fragments Mn-O-Mn in one structure. The coordination sphere of Mn ions is filled with silanolate anions, the O atoms in the fragments Mn-O-Si, Mn-O-Mn, and encapsulated molecules of water. The molecules of solvate ethanol are coordinated exclusively with Na+ cations and are not involved into coordination sphere of Mn-II ions.