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Figure 1
Views of mol­ecules A (top) and B (bottom), showing the atom-numbering schemes and the intramolecular hydrogen bonds (dashed lines) which give rise to five-membered hydrogen-bonded rings I, II, III and IV. All H atoms, except for H11, H21, H31 and H41 (shown as spheres), have been omitted for clarity. Displacement ellipsoids for non-H atoms are drawn at the 50% probability level.

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 59| Part 4| March 2003| Pages m115-m117
doi:10.1107/S0108270103003391
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