3-Fluorobenzoic acid–4-acetylpyridine (1/1) at 100 K

Abstract

In the title compound, C7H5FO2·C7H7NO, a moderate-strength hydrogen bond is formed between the carboxyl group of one mol­ecule and the pyridine N atom of the other. The benzoic acid mol­ecule is observed to be disordered over two positions with the second orientation only 4% occupied. This disorder is also reflected in the presence of diffuse scattering in the diffraction pattern.

Multi-component crystals of 4-phenylpyridine: challenging the boundaries between co-crystal and organic salt formation with insight into solid-state proton transfer

“…Few variable temperature studies on the interaction between acids and pyridine groups have been undertaken. A CSD search identifies four systems containing this interaction with multiple determinations at different temperatures (3-fluorobenzoic acid/4-acetylpyridine (HOLJAU), 35,36 3,5-dimethylpyridine/3,5-dinitrobenzoic acid (PUHRIT, PUHROZ), 37 4-aminosalicylic acid/isoniazid (URUDER), 38 3,5-dinitobenzoic acid/4-(dimethylamino)benzoic acid/4,49bipyridine (QUQCUB)) 19 where the position of the hydrogen atoms have been refined at all temperatures. Only in URUDER does the position of the hydrogen atom involved in the hydrogen bond alter with temperature.…”

Frontiers of Crystallography: A Project-Based Research-Led Learning Exercise

“…If all works out, a short paper on any suitably high-quality structures determined will be written up for one of the crystallographic structure reporting journals such as Acta Crystallographica Section E or Zeitschrift fur Kristallografie: New Structures , , with the potential inclusion as coauthors of those in the class who worked on the publishable new structure. In assessing initial outcomes, and with feedback from participants, the criteria for inclusion as an author on any resulting paper have been discussed, together with general discussions on publication.…”

Conformational polymorphism of the molecular complex of 3-fluorobenzoic acid with 4-acetylpyridine

“…The layers are then held together by a combination of p/p stacking and C-H/O interactions between a methyl H atom and the carbonyl of the benzoic acid molecule. The only F/F interactions occur between the minor component of the disordered fluorobenzoic acid molecule found in the 100 K Form I X-ray diffraction structure ($4%, see below) 7 and are thus not likely to be a significant driving force in the formation of the crystal structure as a whole.…”