Sodium tris­(glycinium) bis­(hexa­fluoro­silicate) glycine trisolvate

The title compound, Na⁺·3C₂H₆NO₂⁺·2SiF₆^2-·3C₂H₅NO₂, arose from an unexpected reaction of glycine and HF with the glass container. It is an unusual hybrid organic-inorganic network built up from chains of vertex-sharing NaF₄O₂ and SiF₆ octa­hedra. A pair of glycinium/glycine mol­ecules bridges the chains into a sheet via a centrosymmetric O...H...O link. The other organic species inter­act with the network by an extensive N-H...F hydrogen-bond network, including bifurcated and trifurcated bonds. Finally, an extremely short C-H...O inter­action (H...O = 2.25 Å) is seen in the crystal structure. The Na atom has site symmetry .