Two isomorphous aza­stilbene derivatives: 1-(2-chloro­benz­yl)-4-[(E)-2-(4-hy­droxy­phenyl)ethenyl]pyridinium chloride and 1-(2-bromo­benzyl)-4-[(E)-2-(4-hy­droxy­phenyl)­ethenyl]­pyridinium bromide

Manszewski, T.; Prukała, D.; Prukała, W.; Kubicki, M.

doi:10.1107/S0108270110034827

Acta Crystallographica Section C
Acta Crystallographica
Section C STRUCTURAL CHEMISTRY

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Figure 2
The stacks of molecules of (I)

, connected by weak interactions that `trap' the Cl⁻ anions (see Comment for details). These interactions and relatively short C—H⋯O hydrogen bonds are drawn as dashed lines. [Symmetry codes: (i) x, −y, $[{1\over 2}]$ + z; (ii) 1 − x, y, − $[{1\over 2}]$ − z; (iii) 1 − x, −y, −z; (iv) − $[{1\over 2}]$ − x, − $[{1\over 2}]$ − y, − $[{1\over 2}]$ + z; (v) − $[{1\over 2}]$ + x, − $[{1\over 2}]$ + y, z; (vi) $[{1\over 2}]$ − x, − $[{1\over 2}]$ − y, −1 + z; (vii) $[{1\over 2}]$ − x, − $[{1\over 2}]$ + y, − $[{1\over 2}]$ − z.]

STRUCTURAL
CHEMISTRY

ISSN: 2053-2296

Volume 66| Part 10| September 2010| Pages o493-o495

doi:10.1107/S0108270110034827

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