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inorganic compounds
Potassium molybdyl arsenate consists of AsO4 tetrahedra and MoO6 octahedra sharing corners to form a three-dimensional framework having intersecting tunnels where the K+ ions are located. The covalent framework KMoO2AsO4 (Pnma) is very similar to that of Ba(MoO2)2(PO4)2 (P21/c), Pb(MoO2)2(PO4)2 (P21/c), NaMoO2PO4 (P21/n) and KMoO2PO4 (Fddd).