A. Abdel-Aziz, H. Ghabbour, A. El-Azab
May 23, 2016
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Journal
Molecular Crystals and Liquid Crystals
Abstract
ABSTRACT The X-ray crystal structure of 3-(2-(4-morpholinophenyl)-2-oxoethyl)-5,5-diphenylimidazolidine-2,4-dione (2) [C27H25N3O4: MF = 455.50, monoclinic, P21/c, a = 6.2038 (2) Å, b = 20.8905 (6) Å, c = 18.3361 (6) Å, b = 97.594 (2)ο, V = 2355.53 Å3, Z = 4, Dcalc = 1.284 Mg m−3, λ = 1.54178 Å] was determined. The crystal packing confirmed the occurrence of two conformers of opposite conformation. Conformational aspects of compound 2 have pointed out two factors that determine the conformation of the system under investigation: first, the intermolecular hydrogen bonding of the crystal packing, which stabilizes and favors the occurrence of two independent molecules, and the second factor is the steric hindrance among substituents.