1-Hydr-oxy-3-(3-methyl-but-2-en-yloxy)xanthone.
Acta Crystallogr Sect E Struct Rep Online
; 65(Pt 11): o2718-9, 2009 Oct 13.
Article
in En
| MEDLINE
| ID: mdl-21578316
ABSTRACT
In the title compound, C(18)H(16)O(4), a monoprenylated xanthone, the xanthone skeleton exhibits an essentially planar conformation (r.m.s. deviation 0.0072â
Å) and the isoprenyl side chain remains approximately in the mean plane of the xanthone unit, making a dihedral angle of 4.5â
(2)°. The hydroxyl group forms an intra-molecular O-Hâ¯O hydrogen bond. Moreover, there is a weak inter-molecular C-Hâ¯O inter-action between a ring C atom and the xanthene O atom. In the crystal structure, there are no inter-molecular hydrogen bonds and the crystallographic packing is governed by van der Waals forces, leading to an arrangement in which the mol-ecules assemble with their planes parallel to each other, having a separation of 3.6â
(3)â
Å.
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Language:
En
Journal:
Acta Crystallogr Sect E Struct Rep Online
Year:
2009
Type:
Article