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Figure 3 Part of the crystal structure of (I) showing the formation of C(9) chains and edge-fused (24) rings along [001]. [Symmetry codes: (i) x,1/2 − y,- + z; (ii) x,1 + y,z; (iii) x,y,-1 + z; (iv) x,1 + y,-1 + z; (v) x,3/2 − y,- + z; (vi) x,1/2 − y,1/2 + z; (vii) x,1/2 − y,1/2 + z]. |