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The structure of K3Nb3O6Si2O7 is built up from Si2O7 ditetrahedra and groups of three corner-linked NbO6 octahedra. The framework is isotypic with that of Ba3Nb6O12(Si2O7)2, but the filling of the tunnels with K+ ions rather than Ba2+ ions determines the space group to be P\=62c.

Supporting information

cif

Crystallographic Information File (CIF)
Contains datablocks du1095, du1095a

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