Crystal structures of 3-chloro-2-nitro­benzoic acid with quinoline derivatives: 3-chloro-2-nitro­benzoic acid–5-nitro­quinoline (1/1), 3-chloro-2-nitro­benzoic acid–6-nitro­quinoline (1/1) and 8-hy­droxy­quinolinium 3-chloro-2-nitro­benzoate

Gotoh, K.; Ishida, H.

doi:10.1107/S2056989019012799

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 9
A partial packing diagram of (III)

, showing the π–π interactions (magenta dashed lines). The N—H⋯O hydrogen bonds in the hydrogen-bonded acid–base units are indicated by green dashed lines. Cg1, Cg2 and Cg3 are the centroids of the C1–C6, N2/C8–C11/C16 and C11–C16 rings, respectively. The π–π interactions including the centroid of the ten-membered quinoline ring system (Cg4) are omitted for clarity. [Symmetry codes: (i) −x + $[{1\over 2}]$ , y + $[{1\over 2}]$ , −z + $[{1\over 2}]$ ; (ii) x, y + 1, z; (iii) −x + $[{3\over 2}]$ , y + $[{1\over 2}]$ , −z + $[{1\over 2}]$ .]

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 75| Part 10| October 2019| Pages 1552-1557

https://doi.org/10.1107/S2056989019012799

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