부산대학교 도서관

The title molecule [C.sub.16][H.sub.12][Cl.sub.2]O is a new chalcone derivative synthesized and grown by slow evaporation technique. X-ray diffraction studies endorsed the crystallization of the compound in primitive monoclinic system in [P2.sub.1]/c space group with one molecule in the asymmetric unit . The unit cell parameters are a = 16.1126 (8) [Angstrom], b = 8.0557 (4) [Angstrom], c = 10.7586 (5) [Angstrom], and [beta]= 102.963 (2)[degrees] with Z=8. The R-factor converged to 0.0447 for 2222 reflections. The molecule exists in trans conformation about the double bond in the central enone group. The crystal structure is stabilized by the presence C-H... O interactions and vanderwaals forces. The bond length, bond angles, torsion angles and plane orientations of the moieties in the molecule are discussed. KEYWORDS:Crystal structure, Chalcone, Trans conformation, X-ray diffraction,Trigonalplane, Hydrogen bonds
Chalcones form the central core for the construction of a variety of bioactive compounds. The usual method for the synthesis of chalcones involves the condensation of aromatic aldehyde and aromatic [...]