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

• Type: Article in International Scientific Journal
• Date: 2009

Authors

L. Gales (Author) Other; R. A. P. Castanheiro (Author) FFUP; M. M. M. Pinto (Author) FFUP; A. M. Damas (Author) Other

Journal

Title: Acta Crystallographica Section E: Structure Reports Online

Vol. 65 No. 11

Pages: 2718-2719

ISSN: 1600-5368

Publisher: International Union of Crystallography

Indexing

ISI Web of Knowledge - 0 Citations

ISI Web of Science

Scopus - 0 Citations

Scientific classification

FOS: Medical and Health sciences > Other medical sciences

CORDIS: Health sciences

Other information

Authenticus ID: 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>

Language: English

Type (Professor's evaluation): Scientific