Crystal structures of four indole derivatives with a phenyl substituent at the 2-position and a carbonyl group at the 3-position: theC(6) N—H...O chain remains the same, but the weak reinforcing interactions are different

Abstract

Four related indole derivatives crystallize with a consistent C(6) N—H⋯O chain motif, but in each case the reinforcing inter­actions and crystal symmetries are different.