1,4,9,12-Tetra­meth­oxy-14-octyl-5,8-di­hydro­diindolo[3,2-b;2′,3′-h]carbazole with an unknown solvent

The title compound, 2C36H39N3O4·H2O, is a linear π-conjugated ladder oligomer with an alkyl chain on the central nitro­gen atom. This diindolocarbazole, prepared via a twofold Cadogan reaction, adopts a sligthly convex shape, anti to the disordered octyl group. The unit cell contains nine mol­ecules of the title compound and half a water mol­ecule per main mol­ecule. The water mol­ecule forms hydrogen bridges, connecting the carbazole-NH and meth­oxy groups of different mol­ecules. The crystal contains solvent mol­ecules which are located in a channel parallel to the c axis. It was not possible to determine the position and nature of the solvent (a mixure of choroform, n-pentane and DMSO). The SQUEEZE [Spek (2015). Acta Cryst. C71, 9–18] option of PLATON was used to model the missing electron density. The given chemical formula and other crystal data do not take into account these solvent mol­ecules.