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A 1 : 1 co-crystal of quinol and pyridine

Oswald, I D H and Motherwell, W D S and Parsons, S (2004) A 1 : 1 co-crystal of quinol and pyridine. Acta Crystallographica Section E: Structure Reports, 60 (Part 11). O1967-O1969. ISSN 1600-5368

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Abstract

A co-crystal of quinol and pyridine would be expected to form with 1:2 stoichiometry because quinol has two hydrogen-bond donors and pyridine has one hydrogen-bond acceptor which is more basic than phenolic oxygen. We report the structure of a 1:1 co-crystal, viz. quinol-pyridine (1/1), C6H6O2.C5H5N, which does not conform to this expectation. Its stability appears to imply that a combination of individually relatively weak C-H...O, C-H...pi and pi-pi stacking interactions are energetically competitive with O-H...N hydrogen bonds. Quinol molecules lie on inversion centres, while pyridine is in a general position.

Item type: Article
ID code: 31363
Keywords: single-crystal X-ray study, T = 150 K, co-crystal , pyridine, quinol , Pharmacy and materia medica, Materials Science(all), Chemistry(all), Condensed Matter Physics
Subjects: Medicine > Pharmacy and materia medica
Department: Faculty of Science > Strathclyde Institute of Pharmacy and Biomedical Sciences
Related URLs:
    Depositing user: Pure Administrator
    Date Deposited: 01 Jul 2011 16:26
    Last modified: 05 Sep 2014 09:11
    URI: http://strathprints.strath.ac.uk/id/eprint/31363

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