STRUCTURE OF (2E,2'E)-3,3'-(1,3-PHENYLENE)BIS(1-(ANTHRACEN-9-YL)PROP-2-EN-1-ONE): A CHALCONE DERIVATIVE

Abstract

The title compound C 40 H 26 O 2 [(2 E , 2' E )-3, 3'-(1,3-Phenylene)-bis(1-(anthracen-9-yl)prop-2-en-1-one)] was prepared from the reaction of isophthalaldehyde and 9-acetylanthracene treated with solution of ethanol and sodium hydroxide. It has been crystallized from DMF using slow evaporation method in the triclinic space group P-1 with Z=2 and unit cell parameters, a = 9.8276(8) b = 10.7470(8), c = 14.5606(10) A, α= 99.833(6), β=104.495(6) & ϒ= 97.371(6)o. The architecture of the crystal structure is determined mainly by three intermolecular interactions [C23-H10…O1, C25-H15…O1, C16-H17…O1], here O1 acts as an acceptor to three different carbon atoms, resulting into the formation of a trifurcated hydrogen bond, forming a graph set motif R 2 2 (8) through a pair of C25-H15...O1 interactions. These motifs are further extended through another intermolecular hydrogen bond [C3-H6...O2] forming a ladder like network, extending along the c-axis.