view article
Figure 6
Histograms showing the distance distribution between the two O atoms involved in the interlinking hydrogen bond(s) for carboxyl–carboxyl(ate) dimer structures with low R-factors (R ≤ 0.05). The arrows mark the average values. (a) d(O⋯O) histogram for the two carboxyl⋯carboxyl hydrogen bonds of the cyclic dimers. (b) d(O⋯O) histogram for the non-cyclic carboxyl⋯carboxyl hydrogen bonds. All syn and anti conformers are taken into account. (c) d(O⋯O) histogram for the carboxyl⋯carboxylate hydrogen bonds (intramolecular hydrogen bonds are not considered). All syn and anti conformers are taken into account. (d) d(O⋯O) histogram for the carboxyl⋯carboxylate intramolecular hydrogen bond found in mono-anion dicarboxylic acids (see for instance Fig. 3[link]).

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 71| Part 2| March 2015| Pages 164-175
doi:10.1107/S205252061500270X
Follow Acta Cryst. B
Sign up for e-alerts
E-alerts
Follow Acta Cryst. on Twitter
Twitter
Follow us on facebook
Facebook
Sign up for RSS feeds
RSS