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Figure 3 The C(6) chain and R21(5) ring of (I),, with C For the sake of clarity, H atoms not involved in the hydrogen bonding motifs shown have been omitted; hydrogen bonds are drawn as dashed lines. [Symmetry codes: (i) x, 1/2-y, z − ; (ii) x, 1/2-y, z + ; (iii) −x, 1-y, 1-z]. |