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Figure 2 Part of the crystal structure of (I), showing R44 (36) [R21(6)R44(32)] and R88(60) [R21(6)R88(56)] rings. For clarity, H atoms bonded to C atoms have been omitted. Dashed lines indicate hydrogen bonds [Symmetry codes: (*) 1 + x, 1/2-y, + z; (#) 1-x, + y, 1/2-z; (&) −1 + x, 1/2-y, − + x; ($) 1-x, − + y, 1/2-z]. |