The incommensurately modulated structure of a tricyclic natural-product-like compound of empirical formula C22H20O3.
3,4-Diphenyl-2a,5a,6,7,8,8a,8b-heptahydro-furo[4,3,2-de]chromen-2-one (1) was prepared as part of a project aimed at the synthesis of polycyclic natural-product-like scaffolds. X-ray analysis of crystals grown from ethanol revealed an incommensurately modulated structure. Data include main and satellite reflections up to second order. The modulation vector was refined using the NADA program. The modulated character of the structure of the organic compound C(22)H(20)O(3) is interpreted in terms of the intermolecular C-H...O hydrogen bonds and close-contact approximation.
Guiblin
Nicolas
N
Laboratoire de Cristallographie, Ecole Polytechnique Fédérale de Lausanne, Institut de Physique de la Matière Complexe, CH-1015 Lausanne, Switzerland. nicolas.guiblin@epfl.ch
Fuhrer
Cyril A
CA
Häner
Robert
R
Stoeckli-Evans
Helen
H
Schenk
Kurt
K
Chapuis
Gervais
G
D001578:Benzopyrans / Q000737:chemistry*; D001688:Biological Products / Q000737:chemistry*; D018360:Crystallography, X-Ray; D006860:Hydrogen Bonding; D008958:Models, Molecular; D015394:Molecular Structure
D001578:Benzopyrans; D001688:Biological Products