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Figure 5
(a) Ternary (134) (b) quaternary (1346) and (c) pentanary (12346) organic-salt alloys. In the ternary (134) alloy, 2-hy­droxybenzoic acid and 2,3-di­hydroxybenzoic acid occupy the same site but with a variable occupancy of 0.49 and 0.51. Similarly, in the quaternary (1346) alloy the site occupancy of 2-hydroxybenzoic acid, 2,3-di­hydroxybenzoic acid and 2,6-di­hydroxybenzoic acid is 0.19, 0.43 and 0.38, respectively. Likewise, in pentanary (12346) alloy, the site occupancy of benzoic acid, 2-hydroxybenzoic acid, 2,3-di­hydroxybenzoic acid and 2,6-di­hydroxybenzoic acid is 0.08, 0.15, 0.39 and 0.38, respectively. The site-occupancy values were obtained by free refinement of carbon or oxygen electron density to give the lowest R factor.

IUCrJ
Volume 5| Part 6| November 2018| Pages 816-822
ISSN: 2052-2525
https://doi.org/10.1107/S2052252518014057