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organic compounds
Two basic heterocyclic imino structures display a planar backbone with similar features, but differ in the heterocyclic atoms located in the five-membered rings, i.e. N and S. In the pyrrole, centrosymmetric iminopyrrole dimers are assembled by means of two inverted N—H
N hydrogen bonds and two inverted C—Hπ interactions. In the thiophene, however, molecules are linked by nonclassical C—HN hydrogen bonds in which the molecules play the roles of both hydrogen-bond donors and acceptors, resulting in one-dimensional supramolecular chains.
N hydrogen bonds and two inverted C—Hπ interactions. In the thiophene, however, molecules are linked by nonclassical C—HN hydrogen bonds in which the molecules play the roles of both hydrogen-bond donors and acceptors, resulting in one-dimensional supramolecular chains.
