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Figure 9
Group–subgroup tree containing all known polymorphs of AnBF4 from the high-symmetry parent structure D to a hypothetical structure with doubled c axis in P21. Red boxes indicate observed structures and bold boxes indicate a doubled parent c axis. Red transitions are experimentally observed with dashed lines indicating transitions between groups with no direct group–subgroup relationship. Important transitions are labelled with their irrep labels, cell transformation and origin shift. |
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