Please use this identifier to cite or link to this item: https://hdl.handle.net/10316/109983
DC FieldValueLanguage
dc.contributor.authorPereira Silva, P. S.-
dc.contributor.authorParveen, Mehtab-
dc.contributor.authorAli, Akhtar-
dc.contributor.authorMalla, Ali Mohammed-
dc.contributor.authorSilva, M. Ramos-
dc.date.accessioned2023-11-10T09:19:44Z-
dc.date.available2023-11-10T09:19:44Z-
dc.date.issued2010-12-18-
dc.identifier.issn1600-5368pt
dc.identifier.urihttp://hdl.handle.net/10316/109983-
dc.description.abstractThe title compound, C(20)H(16)O(6), which contains one chiral centre, crystallizes as a racemate. The mean planes of the two coumarin units make a dihedral angle of 88.07 (2)°. The pyrone ring containing the chiral centre adopts a sofa conformation. In the crystal, four mol-ecules are linked by O-H⋯O hydrogen bonds, forming a tetrameric ring with graph-set motif R(4) (4)(32). These tetramers are further linked by O-H⋯O hydrogen bonds into a three-dimensional network.pt
dc.language.isoengpt
dc.publisherInternational Union of Crystallographypt
dc.relationSFRH/BD/38387/ 2008pt
dc.rightsopenAccesspt
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/pt
dc.subjectsingle-crystal X-ray studypt
dc.subjectT = 293 K; mean (C–C) = 0.002 A°pt
dc.subjectR factor = 0.040pt
dc.subjectwR factor = 0.109pt
dc.subjectdata-to-parameter ratio = 18.6pt
dc.title7,7'-Dihy-droxy-4,4'-dimethyl-3,4-dihydro-2H,2'H-4,6'-bichromene-2,2'-dionept
dc.typearticle-
degois.publication.firstPageo201pt
degois.publication.lastPageo201pt
degois.publication.issuePt 1pt
degois.publication.titleActa Crystallographica Section E: Structure Reports Onlinept
dc.peerreviewedyespt
dc.identifier.doi10.1107/S160053681005244Xpt
degois.publication.volume67pt
dc.date.embargo2010-12-18*
uc.date.periodoEmbargo0pt
item.languageiso639-1en-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.grantfulltextopen-
item.fulltextCom Texto completo-
item.cerifentitytypePublications-
item.openairetypearticle-
crisitem.author.orcid0000-0001-9555-8856-
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais
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