1-Hydroxy-3-(3-methylbut-2-enyloxy)xanthone

• Tipo: Artigo em Revista Científica Internacional
• Data: 2009

Autores

L. Gales (Autor) Outra; R. A. P. Castanheiro (Autor) FFUP; M. M. M. Pinto (Autor) FFUP; A. M. Damas (Autor) Outra

Revista

Título: Acta Crystallographica Section E: Structure Reports Online

Vol. 65 Nº 11

Páginas: 2718-2719

ISSN: 1600-5368

Editora: International Union of Crystallography

Indexação

ISI Web of Knowledge - 0 Citações

ISI Web of Science

Scopus - 0 Citações

Classificação Científica

FOS: Ciências médicas e da saúde > Outras ciências médicas

CORDIS: Ciências da Saúde

Outras Informações

ID Authenticus: P-003-EEA

DOI: 10.1107/S1600536809040069

Resumo (PT): In the title compound, C18H16O4, a monoprenylated xanthone, the xanthone skeleton exhibits an essentially planar conformation (r.m.s. deviation 0.0072 Å) and the isoprenyl side chain remains approximately in the mean plane of the xanthone unit, making a dihedral angle of 4.5 (2)°. The hydroxyl group forms an intramolecular O-HO hydrogen bond. Moreover, there is a weak intermolecular C-HO interaction between a ring C atom and the xanthene O atom. In the crystal structure, there are no intermolecular hydrogen bonds and the crystallographic packing is governed by van der Waals forces, leading to an arrangement in which the molecules assemble with their planes parallel to each other, having a separation of 3.6 (3) Å. <br> <br> <a target="_blank" href="http://journals.iucr.org/e/issues/2009/11/00/issconts.htmll"> Texto integral </a> <br> <br>

Abstract (EN): In the title compound, C18H16O4, a monoprenylated xanthone, the xanthone skeleton exhibits an essentially planar conformation (r.m.s. deviation 0.0072 Å) and the isoprenyl side chain remains approximately in the mean plane of the xanthone unit, making a dihedral angle of 4.5 (2)°. The hydroxyl group forms an intramolecular O-HO hydrogen bond. Moreover, there is a weak intermolecular C-HO interaction between a ring C atom and the xanthene O atom. In the crystal structure, there are no intermolecular hydrogen bonds and the crystallographic packing is governed by van der Waals forces, leading to an arrangement in which the molecules assemble with their planes parallel to each other, having a separation of 3.6 (3) Å. <br> <br> <a target="_blank" href="http://journals.iucr.org/e/issues/2009/11/00/issconts.html">Texto integral</a> <br> <br>

Idioma: Inglês

Tipo (Avaliação Docente): Científica