Figure 1
4-Iodochalcone [Ep representing an iodo (E) at the para (p) position on ring-1] substitution scheme for Ep2o, Ep2m and Ep2p, which are substituted with an F atom (2) at the ortho, meta and para (o, m and p) positions, respectively, and Ep8p with a nitro group (8) substituted at the para position on ring-3. Torsion angles: ϕ1 = C5—C4—C1—C2, ϕ2 = C4—C1—C2—C3 and ϕ3 = C2—C3—C10—C11. |