Na₄Ce(As₂O₇)₂

Tetrasodium cerium(IV) bis[diarsenate(4-)] is built from CeO₈ antiprisms and As₂O₇ diarsenate groups connected by Ce-O-As mixed bridges to form a three-dimensional framework. The As₂O₇ diarsenate groups have a nearly eclipsed conformation. The framework delimits interconnecting tunnels running along the [001] and [110] directions where the Na⁺ cations are located.

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