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Schematic representation of the building block dependent synthesis of (A) Co4, (B) Co9, and (C) Co20, which are templated by PO4 3− after heat activation. Ball‐and‐stick representation of (D) Co4, (E) Co9 enclosing the quasi‐ {CoII 3O4} cubane, and (F) Co20 incorporating the PO4 3−‐stabilized {CoII 4O4} cubane. Color code: {WO6}, dark blue; CoII, pink; GeIV, lime; PV, light orange; O, red, {W3O13} triads of Co4, grey octahedra.
