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Lookup NU author(s): Gary Nichol,
Emeritus Professor Bill Clegg
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Reaction of 4,4'-bipyridine (4,4'-bipy) with barbituric (BAH), orotic (ORH), and uracil-5-carboxylic acids (U5CAH) yielded three new products, which have been characterized by single-crystal X-ray diffraction. The products include a co-crystal of neutral species with Z = 2 (4,4'-bipy/BAH), an organic complex ion pair (4,4'-bipy/ORH) and a compound containing both ionic and hydrogen-bonded neutral species (4,4'-bipy/U5CAH). Partial proton transfer is observed in both of the ionic cases, and in all three structures the crystal packing arrangement is such that weak hydrogen bonding, pi center dot center dot center dot pi and molecular dipole interactions are optimized.
Author(s): Nichol GS, Clegg W
Publication type: Article
Publication status: Published
Journal: Crystal Growth & Design
ISSN (print): 1528-7483
ISSN (electronic): 1528-7505
Publisher: American Chemical Society
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