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The hydrogen bonded motifs in the crystal structure of I. Hydrogen bonds are shown as dashed lines. (a) the N—H···N chain. [Symmetry codes: (i) x, y, z; (ii) x, -3/2 + y, 3/2 - z; (iii) 2 - x, 1/2 + y, 3/2 - z; (iv) 2 - x, -1/2 + y, 3/2 - z; (v) 2 - x, -3/2 + y, 3/2 - z.] (b) the N—H···O chains and rings. [Symmetry codes: (i) x, y, z; (ii) 1 - x, 1/2 + y, 3/2 - z; (iii) 1 - x, -1/2 + y, 3/2 - z.]
