Hydrogen-bonded structures of the 1:1 and 1:2 compounds of chloranilic acid with pyrrolidin-2-one and piperidin-2-one

Gotoh, K.; Ishida, H.

doi:10.1107/S0108270111048165

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 9
A packing diagram for (IV)

, viewed along the b axis, showing the hydrogen-bonded layer structure. Dashed lines show N—H⋯O and O—H⋯O hydrogen bonds. H atoms not involved in hydrogen bonding have been omitted. [Symmetry codes: (i) x − $[{1\over 2}]$ , −y + $[{1\over 2}]$ , z − $[{1\over 2}]$ ; (ii) −x + $[{1\over 2}]$ , y − $[{1\over 2}]$ , −z + $[{1\over 2}]$ ; (iv) −x + 1, −y + 1, −z + 1; (v) −x + $[{1\over 2}]$ , y + $[{1\over 2}]$ , −z + $[{1\over 2}]$ ; (vi) x + $[{1\over 2}]$ , −y + $[{1\over 2}]$ , z + $[{1\over 2}]$ .]

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 67| Part 12| November 2011| Pages o500-o504

doi:10.1107/S0108270111048165

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