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. Author manuscript; available in PMC: 2018 Aug 3.
Published in final edited form as: Nat Catal. 2018 Mar 8;1(3):208–213. doi: 10.1038/s41929-018-0037-1

Figure 1. Polyhedral structures of earth-abundant-based WOCs.

Figure 1

a, Representation of two tungsten-based WOCs ({Ru4W20}27 and {Co4W18}20). b, Representation of the new cluster family with mixed Mo/W addenda positions. c, Representation of two molybdenum-based WOCs ({CoMo6}26 and {Co2Mo10}26). Red spheres, oxygen; purple spheres, cobalt; brown spheres, ruthenium; orange spheres, phosphorous; grey spheres, silicon. Teal polyhedra, {WO6} units; yellow polyhedra, {MoO6} units; mixed teal–yellow polyhedra, {MO6} units, where M = Mo/W.