Crystal structure of rosmanol-9-ethylether

Gyula Argay, Alajos Kálmán, Béla Ribár, Zoltán Djarmati, Nikola Tot, Ernö Schwirtlich, Ratko M. Jankov

Research output: Contribution to journalArticle

5 Citations (Scopus)


The title compound: 2H-10,4a-(epoxy-methano)-phenantren-12-one-1,3,4,9,10,10a-hexahydro-5,6-dihydroxy-9 α-etoxy-1,1-dirnethyl-7-(1-methylethyl), was isolated from Salvia officinalis L. and Hyssopus officinalis L. C22H30O5, orthorhombic, P212121, (No. 19)a=8.309(1), b=11.320(2), c=22.060(3) Å, V=2075.0(9) Å3, Z=4, Dx=1.199 g·cm-3, λ(Cu Kα)=1.54184 Å, μ=6.43 cm-1, F(000)=808, T=296(1) K. The structure was solved by direct methods and refined to R=0.047 for 1824 observed reflections collected on a CAD-4 diffractometer. In the course of structure refinement conformational disorder of the isopropyl moiety and the terminal methyl group pertaining to the ethoxy ligand was established. They result altogether in four different conformers.

Original languageEnglish
Pages (from-to)625-628
Number of pages4
JournalJournal of Crystallographic and Spectroscopic Research
Issue number5
Publication statusPublished - Oct 1 1991

ASJC Scopus subject areas

  • Structural Biology
  • Condensed Matter Physics
  • Spectroscopy

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