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Figure 2 The crystal packing of (I), viewed along a axis. Hydrogen bonds are indicated by dashed lines. [Symmetry code: (i) −x + 2, y − , −z + ; (ii) −x + 2, −y + 1, −z + 1; (iii) −x + 1, y − , −z + ; (iv) −x + 1, −y + 1, −z + 1; (v) x − 1, y, z; (vi) −x + 1, −y + 2, −z + 1.] |