Crystal structures of three co-crystals of 4,4′-bipyridyl with 4-alk­oxy­benzoic acids: 4-eth­oxy­benzoic acid–4,4′-bipyridyl (2/1), 4-n-propoxybenzoic acid–4,4′-bipyridyl (2/1) and 4-n-but­oxy­benzoic acid–4,4′-bipyridyl (2/1)

Tabuchi, Y.; Gotoh, K.; Ishida, H.

doi:10.1107/S2056989015018435

Acta Crystallographica Section E
Acta Crystallographica
Section E CRYSTALLOGRAPHIC COMMUNICATIONS

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Figure 5
A partial packing diagram of compound (I)

, showing the column structure formed by π–π stacking interactions (dashed lines). H atoms not involved in the O—H⋯N hydrogen bonds have been omitted. [Symmetry codes: (iii) x + 1, y, z; (iv) x − 1, y, z.]

CRYSTALLOGRAPHIC
COMMUNICATIONS

ISSN: 2056-9890

Volume 71| Part 11| November 2015| Pages 1290-1295

https://doi.org/10.1107/S2056989015018435

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