DOI: 10.17188/1475761
title: Materials Data on K2Na2Mo(WO4)3 by Materials Project

description: K2Na2Mo(WO4)3 is (Cubic) Perovskite-derived structured and crystallizes in the orthorhombic Pmm2 space group. The structure is three-dimensional. K1+ is bonded to twelve O2- atoms to form KO12 cuboctahedra that share corners with four equivalent KO12 cuboctahedra, corners with eight equivalent NaO12 cuboctahedra, faces with two equivalent NaO12 cuboctahedra, faces with four equivalent KO12 cuboctahedra, faces with two equivalent MoO6 octahedra, and faces with six WO6 octahedra. There are a spread of K–O bond distances ranging from 2.83–2.86 Å. Na1+ is bonded to twelve O2- atoms to form NaO12 cuboctahedra that share corners with four equivalent NaO12 cuboctahedra, corners with eight equivalent KO12 cuboctahedra, faces with two equivalent KO12 cuboctahedra, faces with four equivalent NaO12 cuboctahedra, faces with two equivalent MoO6 octahedra, and faces with six WO6 octahedra. There are a spread of Na–O bond distances ranging from 2.81–2.84 Å. There are three inequivalent W+4.67+ sites. In the first W+4.67+ site, W+4.67+ is bonded to six O2- atoms to form WO6 octahedra that share corners with six WO6 octahedra, faces with four equivalent KO12 cuboctahedra, and faces with four equivalent NaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of W–O bond distances ranging from 1.93–2.01 Å. In the second W+4.67+ site, W+4.67+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent MoO6 octahedra, corners with four WO6 octahedra, faces with four equivalent KO12 cuboctahedra, and faces with four equivalent NaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of W–O bond distances ranging from 1.92–2.02 Å. In the third W+4.67+ site, W+4.67+ is bonded to six O2- atoms to form WO6 octahedra that share corners with two equivalent MoO6 octahedra, corners with four WO6 octahedra, faces with four equivalent KO12 cuboctahedra, and faces with four equivalent NaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of W–O bond distances ranging from 1.93–2.08 Å. Mo6+ is bonded to six O2- atoms to form MoO6 octahedra that share corners with two equivalent MoO6 octahedra, corners with four WO6 octahedra, faces with four equivalent KO12 cuboctahedra, and faces with four equivalent NaO12 cuboctahedra. The corner-sharing octahedra tilt angles range from 0–1°. There are a spread of Mo–O bond distances ranging from 2.00–2.10 Å. There are ten inequivalent O2- sites. In the first O2- site, O2- is bonded to two equivalent K1+, two equivalent Na1+, and two equivalent W+4.67+ atoms to form distorted OK2Na2W2 octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four OK2Na2W2 octahedra, and faces with eight OK4W2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°. In the second O2- site, O2- is bonded to two equivalent K1+, two equivalent Na1+, and two equivalent W+4.67+ atoms to form distorted OK2Na2W2 octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four OK2Na2W2 octahedra, and faces with eight OK4W2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°. In the third O2- site, O2- is bonded to two equivalent K1+, two equivalent Na1+, and two equivalent W+4.67+ atoms to form distorted OK2Na2W2 octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four OK2Na2W2 octahedra, and faces with eight OK4MoW octahedra. The corner-sharing octahedra tilt angles range from 0–60°. In the fourth O2- site, O2- is bonded to two equivalent K1+, two equivalent Na1+, and two equivalent Mo6+ atoms to form distorted OK2Na2Mo2 octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four OK2Na2W2 octahedra, and faces with eight OK4MoW octahedra. The corner-sharing octahedra tilt angles range from 0–60°. In the fifth O2- site, O2- is bonded to two equivalent K1+, two equivalent Na1+, and two W+4.67+ atoms to form a mixture of distorted edge, corner, and face-sharing OK2Na2W2 octahedra. The corner-sharing octahedra tilt angles range from 1–62°. In the sixth O2- site, O2- is bonded to two equivalent K1+, two equivalent Na1+, one W+4.67+, and one Mo6+ atom to form a mixture of distorted edge, corner, and face-sharing OK2Na2MoW octahedra. The corner-sharing octahedra tilt angles range from 1–62°. In the seventh O2- site, O2- is bonded to four equivalent K1+ and two W+4.67+ atoms to form distorted OK4W2 octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four OK4W2 octahedra, and faces with eight OK2Na2W2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°. In the eighth O2- site, O2- is bonded to four equivalent Na1+ and two W+4.67+ atoms to form distorted ONa4W2 octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four ONa4W2 octahedra, and faces with eight OK2Na2W2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°. In the ninth O2- site, O2- is bonded to four equivalent K1+, one W+4.67+, and one Mo6+ atom to form distorted OK4MoW octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four OK4W2 octahedra, and faces with eight OK2Na2W2 octahedra. The corner-sharing octahedra tilt angles range from 0–62°. In the tenth O2- site, O2- is bonded to four equivalent Na1+, one W+4.67+, and one Mo6+ atom to form distorted ONa4MoW octahedra that share corners with twenty-two OK2Na2W2 octahedra, edges with four ONa4W2 octahedra, and faces with eight OK2Na2W2 octahedra. The corner-sharing octahedra tilt angles range from 0–61°.