| Abstract |
The crystal structures of two p-substituted phenylformiminopyrrole derivatives, namely 2-[(4-fluorophenyl) iminomethyl]pyrrole, C11H9FN2, (1), and 2-[(1H-pyrrol-2-ylmethylidene)amino] benzonitrile, C12H9N3, (2), bear F and C N electron-withdrawing groups, respectively. Both structures feature two independent molecules in the asymmetric unit forming dimers via N-H center dot center dot center dot N hydrogen bonds. In the case of (1), each dimer interacts with two other dimers via C-H center dot center dot center dot F contacts, thus forming one-dimensional chains in the b direction, whereas in the case of (2), a weak C-H center dot center dot center dot N interaction connects the dimers in one-dimensional chains in the (110) direction. |
