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Isomeric 3- and 4-chloro-N-[1-(1H-pyrrol-2-yl)ethylidene]aniline.
|Title||Isomeric 3- and 4-chloro-N-[1-(1H-pyrrol-2-yl)ethylidene]aniline.|
|Publication Type||Journal Article|
|Year of Publication||2013|
|Authors||Su B-Y, Wang J-X, Liu X, Li Q-D|
|Journal||Acta crystallographica. Section C, Crystal structure communications|
|Date Published||2013 May|
The title isomers, namely 3-chloro-N-[1-(1H-pyrrol-2-yl)ethylidene]aniline, (I), and 4-chloro-N-[1-(1H-pyrrol-2-yl)ethylidene]aniline, (II), both C12H11ClN2, differ in the position of the chlorine substitution. Both compounds have the basic iminopyrrole structure, which shows a planar backbone with similar features. The dihedral angle formed by the planes of the pyrrole and benzene rings is 75.65 (7)° for (I) and 86.56 (8)° for (II). The H atom bound to the pyrrole N atom is positionally disordered and partial protonation occurs at the imino N atom in (I), while this phenomenon is absent from the structure of (II). Packing interactions for both compounds include intermolecular N-H···N hydrogen bonds and C-H···π interactions, forming centrosymmetric dimers for both (I) and (II).
|Alternate Journal||Acta Crystallogr C|