Crystal structure and Hirshfeld surface analysis of 2-oxo-13-epi-manoyl oxide isolated from Sideritis perfoliata
Acta Crystallographica Section E: Crystallographic Communications, cilt.74, ss.713-717, 2018 (Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 74
- Basım Tarihi: 2018
- Doi Numarası: 10.1107/s2056989018005807
- Dergi Adı: Acta Crystallographica Section E: Crystallographic Communications
- Derginin Tarandığı İndeksler: Scopus
- Sayfa Sayıları: ss.713-717
- Anahtar Kelimeler: crystal structure, cyclohexane rings, helical supramolecular chains, Hirshfeld surface analysis, tetrahydropyran rings
- Ondokuz Mayıs Üniversitesi Adresli: Hayır
Özet
The title compound, C20 H32 O2 (systematic name: 3-ethenyl-3,4a,7,7,10a-pentamethyldodecahydro-9H-benzo[f]chromen-9-one), was isolated from Sideritis perfoliata. In the crystal, molecules pack in helical supramolecular chains along the 2 1 screw axis running parallel to the a axis, bound by C - H...O hydrogen bonds. These chains are efficiently interlocked in the other two unit-cell directions via van der Waals interactions. Hirshfeld surface analysis shows that van der Waals interactions constitute the major contribution to the intermolecular interactions, with H...H contacts accounting for 86.0% of the surface.