Crystal structure of (E)-1-[4-({4-[(4-methoxybenzylidene)amino]phenyl}sulfanyl)phenyl]ethan-1-one

Abstract

The title Schiff base compound, C22H19NO2S, crystallized with two independent mol­ecules (A and B) in the asymmetric unit. Both mol­ecules have an E conformation about the C=N bond. The two mol­ecules differ in the orientation of the aromatic rings with respect to each other. The outer 4-meth­oxy­benzene ring is inclined to the central benzene ring and the outer 4-acetyl­benzene ring by 1.80 (19) and 63.73 (19)°, respectively, in mol­ecule A, and by 6.72 (18) and 68.53 (19)°, respectively, in mol­ecule B. The two outer benzene rings are inclined to one another by 63.77 (18) and 63.19 (18)° in mol­ecules A and B, respectively. In the crystal, the individual mol­ecules stack in columns along [010], and are linked by a number of C—H⋯π inter­actions, forming slabs lying parallel to (001).

2-[(4-Chlorophenyl)imino]-1,2-diphenylethanone

“…The dihedral angle between the phenyl rings of the benzil unit is 74.14 (5) . The C-N iminium bond length [1.268 (3) A ˚] is comparable to that observed in (E)-1-[4-({4-[(4methoxybenzylidene)amino]phenyl}sulfanyl)phenyl]ethan-1-one [1.252 (4) A ˚; Hebbachi et al, 2015]. Atom O1 accepts two long and presumably weak intramolecular hydrogen bonds with atoms H3 and H9 (Fig.…”