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Figure 2
Part of the crystal structure of 6, with hydrogen bonds shown as dotted lines. Each mol­ecule contributes to two helices. That at ([1\over 3], [2\over3], z) only involves O12; that at ([2\over3], [1\over3], z) involves both O7 and N2. [Symmetry codes: (i) x, y, z − 1; (ii) −y + 1, x − y, z − [{2\over 3}]; (iv) −y + 1, x − y + 1, z − [{2\over 3}]; (vi) −x + y, −x + 1, z − [{1\over 3}]; (vii) −x + y + 1, −x + 1, z − [{1\over 3}].]

Journal logoCRYSTALLOGRAPHIC
COMMUNICATIONS
ISSN: 2056-9890
Volume 63| Part 1| January 2007| Pages o210-o212
https://doi.org/10.1107/S1600536806052111
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