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Figure 6
Schematic representations of the intra­molecular hydrogen-bond network presented by (A) (I)[link] in both polymorphic forms and (B) the 4-oxo-N-meth­oxy­phenyl-4H-chromene-2-carboxamide isomer. As can be seen, the amidic substitution at the 3-position of the chromone (A) `inverts' the relative position of atoms O1 and O4 of the chromone ring with respect to the N-phenyl­carboxamide group, compared with the structure of the 2-carboxamide (B).

Journal logoSTRUCTURAL
CHEMISTRY
ISSN: 2053-2296
Volume 69| Part 8| July 2013| Pages 927-933
doi:10.1107/S0108270113017538
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