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Figure 2 Part of the crystal structure of the title compound, showing the network of N—H⋯O hydrogen bonds (dashed lines). The 21 screw axis forming the backbone supra­molecular structure is shown with a standard symbol, and each mol­ecule has a color corresponding to symmetry related positions in the crystal: grey: asymmetric unit; red: −[{1\over 2}] + x, [{3\over 2}] − y, 1 − z; green: [{1\over 2}] + x, [{3\over 2}] − y, 1 − z; blue: 1 + x, y, z; purple: [{3\over 2}] + x, [{3\over 2}] − y, 1 − z.

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 65| Part 1| December 2009| Page o96
doi:10.1107/S1600536808040373
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