Please use this identifier to cite or link to this item: http://www.repositorio.ufop.br/handle/123456789/7976
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dc.contributor.authorCorrea, Rodrigo de Souza-
dc.contributor.authorSantos, Marcelo Henrique dos-
dc.contributor.authorNagem, Tanus Jorge-
dc.contributor.authorEllena, Javier Alcides-
dc.date.accessioned2017-06-19T14:05:53Z-
dc.date.available2017-06-19T14:05:53Z-
dc.date.issued2010-
dc.identifier.citationCORREA, R. de S. et al. On the relationships between molecular conformations and intermolecular contacts toward crystal self-assembly of mono-, di-, tri-, and tetra-oxygenated xanthone derivatives. Structural Chemistry, v. 21, p. 555-563, 2010. Disponível em: <https://link.springer.com/article/10.1007/s11224-010-9582-1>. Acesso em: 20 mai. 2017.pt_BR
dc.identifier.issn1572-https://doi.org/10.1007/s11224-010-9582-1 9001-
dc.identifier.urihttp://www.repositorio.ufop.br/handle/123456789/7976-
dc.description.abstractOxygenated xanthones have been extensively investigated over the years, but there are few reports concerning their crystal structure. Our chemical investigations of Brazilian plants resulted in the isolation of four natural products named 1-hydroxyxanthone (I), 1-hydroxy-7- methoxyxanthone (II), 1,5-dihydroxy-3-methoxyxanthone (III), and 1,7-dihydroxy-3,8-dimethoxyxanthone (IV). The structures of these compounds were established on the basis of single crystal X-ray diffraction. The xanthone nucleus conformation is essentially planar with the substituents adopting the orientations less sterically hindered. In addition, classical intermolecular hydrogen bonds (O–H O) present in III and IV give rise to infinite ribbons. However, the xanthone I does not present any intermolecular hydrogen bonds, meanwhile the xanthone II presents only a non-classical one (C–H O). The crystal packing of all xanthone structures is also stabilized by p–p interactions. The fingerprint plots, derived from the Hirshfeld surfaces, exhibited significant features of each crystal structures.pt_BR
dc.language.isoen_USpt_BR
dc.rightsrestritopt_BR
dc.subjectOxygenated xanthonespt_BR
dc.subjectMolecular conformationpt_BR
dc.subjectHydrogen bondspt_BR
dc.subjectHirshfeld surfacespt_BR
dc.titleOn the relationships between molecular conformations and intermolecular contacts toward crystal self-assembly of mono-, di-, tri-, and tetra-oxygenated xanthone derivatives.pt_BR
dc.typeArtigo publicado em periodicopt_BR
dc.identifier.uri2https://link.springer.com/article/10.1007/s11224-010-9582-1pt_BR
dc.identifier.doihttps://doi.org/10.1007/s11224-010-9582-1-
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