A systematic structural study of halogen bonding versus hydrogen bonding within competitive supramolecular systems

dc.citationAakeroy, C. B., Spartz, C. L., Dembowski, S., Dwyre, S., & Desper, J. (2015). A systematic structural study of halogen bonding versus hydrogen bonding within competitive supramolecular systems. Iucrj, 2, 498-510. doi:10.1107/s2052252515010854
dc.citation.doi10.1107/s2052252515010854
dc.citation.epage510
dc.citation.issn2052-2525
dc.citation.jtitleIUCrJ
dc.citation.spage498
dc.citation.volume2
dc.contributor.authorAakeröy, Christer B.
dc.contributor.authorSpartz, C. L.
dc.contributor.authorDembowski, S.
dc.contributor.authorDwyre, S.
dc.contributor.authorDesper, J.
dc.contributor.authoreidaakeroy
dc.date.accessioned2016-04-04T22:23:52Z
dc.date.available2016-04-04T22:23:52Z
dc.date.issued2015-09-01
dc.date.published2015
dc.descriptionCitation: Aakeroy, C. B., Spartz, C. L., Dembowski, S., Dwyre, S., & Desper, J. (2015). A systematic structural study of halogen bonding versus hydrogen bonding within competitive supramolecular systems. Iucrj, 2, 498-510. doi:10.1107/s2052252515010854
dc.descriptionAs halogen bonds gain prevalence in supramolecular synthesis and materials chemistry, it has become necessary to examine more closely how such interactions compete with or complement hydrogen bonds whenever both are present within the same system. As hydrogen and halogen bonds have several fundamental features in common, it is often difficult to predict which will be the primary interaction in a supramolecular system, especially as they have comparable strength and geometric requirements. To address this challenge, a series of molecules containing both hydrogen- and halogen-bond donors were co-crystallized with various monotopic, ditopic symmetric and ditopic asymmetric acceptor molecules. The outcome of each reaction was examined using IR spectroscopy and, whenever possible, single-crystal X-ray diffraction. 24 crystal structures were obtained and subsequently analyzed, and the synthon preferences of the competing hydrogen- and halogen-bond donors were rationalized against a background of calculated molecular electrostatic potential values. It has been shown that readily accessible electrostatic potentials can offer useful practical guidelines for predicting the most likely primary synthons in these co-crystals as long as the potential differences are weighted appropriately.
dc.identifier.urihttp://hdl.handle.net/2097/32258
dc.relation.urihttps://doi.org/10.1107/s2052252515010854
dc.rightsAttribution 2.0 UK: England & Wales (CC BY 2.0 UK)
dc.rights.urihttps://creativecommons.org/licenses/by/2.0/uk/
dc.subjectCrystal Engineering
dc.subjectHydrogen Bonds
dc.subjectHalogen Bonds
dc.subjectSynthons
dc.subjectElectrostatic Potentials
dc.subjectExperimental Charge-Density
dc.titleA systematic structural study of halogen bonding versus hydrogen bonding within competitive supramolecular systems
dc.typeArticle

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