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. 2003 Mar;59(Pt 3):o127-8.
doi: 10.1107/s0108270103002300. Epub 2003 Feb 18.

Pomiferin

Jaromír Marek  1 , Dagmar Veselá, Margita Lisková, Milan Zemlicka
Affiliations

Pomiferin

Jaromír Marek et al. Acta Crystallogr C. 2003 Mar.

Abstract

The crystal structure of pomiferin, 3-(3,4-dihydroxyphenyl)-5-hydroxy-8,8-dimethyl-6-(3-methylbut-2-enyl)-4H,8H-pyrano[2,3-h]chromen-4-one, C(25)H(24)O(6), has been determined. The benzopyranone ring system is nearly planar and the dihedral angle between the phenyl ring and the benzopyranone moiety is 40.85 (4) degrees. The crystal structure is stabilized by a one-dimensional chain of inter- and intramolecular O-H...O hydrogen bonds, with O...O distances in the range 2.5546 (15)-2.7999 (16) A.

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