Five symmetrically substituted 2-aryl-3-benzyl-1,3-thia­zolidin-4-ones: supra­molecular structures in zero, one and two dimensions

There are no direction‐specific inter­actions between the mol­ecules of 3‐(2‐methoxy­benz­yl)‐2‐(2‐methoxy­phen­yl)‐1,3‐thia­zolidin‐4‐one, C18H19NO3S, (I); the mol­ecules of 3‐(4‐nitro­benz­yl)‐2‐(4‐nitro­phen­yl)‐1,3‐thia­zolidin‐4‐one, C16H13N3O5S, (II), are linked by four independent C—H⋯O hydrogen bonds into complex chains of fused rings. In 3‐(4‐methoxy­benz­yl)‐2‐(4‐methoxy­phen­yl)‐1,3‐thia­zolidin‐4‐one, (III), isomeric with (I), the mol­ecules are linked into sheets by a combination of C—H⋯O and C—H⋯π(arene) hydrogen bonds, while in 3‐(2‐nitro­benz­yl)‐2‐(2‐nitro­phen­yl)‐1,3‐thia­zolidin‐4‐one, (IV), isomeric with (II), the sheets are built from three independent C—H⋯O hydrogen bonds and one C—H⋯π(arene) hydrogen bond, and reinforced by an aromatic π–π stacking inter­action. In 3‐(2‐fluoro­benz­yl)‐2‐(2‐fluoro­phen­yl)‐1,3‐thia­zolidin‐4‐one, C16H13F2NOS, (V), where the 2‐aryl ring exhibits orientational disorder, the mol­ecules are linked into sheets by a combination of C—H⋯O and C—H⋯π(arene) hydrogen bonds, and the sheets are linked in pairs, forming bilayers, by an aromatic π–π stacking inter­action.