Crystal structure of (E)-1,3-bis(6-methoxynaphthalen-2-yl)prop-2-en-1-one

Abstract

In the title compound, C25H20O3, the central –C(=O)—C=C– chain is disordered over two positions about the central C atom, with an occupancy ratio of 0.848 (6):0.152 (6). The mol­ecule is twisted with the two naphthalene ring systems being inclined to one another by 52.91 (9)°. In the crystal, mol­ecules are linked by C—H⋯π inter­actions, forming a three-dimensional structure. The structure was refined as a two-component twin with a 180 ° rotation about the c* axis.

Three closely related 1-(naphthalen-2-yl)prop-2-en-1-ones: pseudosymmetry, disorder and supramoleular assembly mediated by C—H...π and C—Br...π interactions

“…The structures have also been reported for a number of related chalcones derived from 6-methoxynaphthaldehyde (Yathirajan et al, 2006;Butcher et al, 2007;Jasinski et al, 2009;Nayak et al, 2014;Patel & Chadha, 2015). We also note the structures of a number of chalcones containing halogen- Part of the crystal structure of compound (III), showing the formation of a centrosymmetric dimer built from C-HÁ Á Á hydrogen bonds (shown as dashed lines).…”