A second polymorph of (+)-pinoresinol-dioxane(1/1).
Artikel i vetenskaplig tidskrift, 2004

The crystal structure of the title compound, C20H22O6·C4H8O2, has been determined. The crystals are stabilized by O-H...O hydrogen bonding between the pinoresinol and dioxane molecules. C-H...O hydrogen bonds are absent, but are present in a previously reported polymorph of the solvate. The formation of two polymorphs may be related to different hydrogen-bonding possibilities. The five-membered rings in the central dioxabicyclooctane ring system of the pinoresinol molecules in the title compound are twisted on the benzylic C and the O atom.

crystal structure

polymorphism

pinoresinol

conformation

Författare

Rolf Stomberg

Vratislav Langer

Chalmers, Institutionen för oorganisk miljökemi

Knut Lundquist

Chalmers, Institutionen för kemiteknik och miljövetenskap, Skogsindustriell kemiteknik

Acta Crystallographica Section E: Structure Reports Online

1600-5368 (ISSN)

Vol. E60 o81-o83

Ämneskategorier

Kemi