An extreme case of ZnO₆ octahedral distortion in trizinc tris(selenite) hydrate, Zn₃(SeO₃)₃

Trizinc tris[trioxoselenate(IV)] hydrate, Zn₃(SeO₃)₃^.H₂O, is built up from a dense network of ZnO₆ octahedra and SeO₃ pyramids, sharing vertices and edges. One of the zinc octahedra is exceptionally distorted with two of its Zn-O bonds longer than 2.48 Å.

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