Microsolvation of the pyrrole cation (Py⁺) with nonpolar and polar ligands: infrared spectra of Py⁺–L_n with L = Ar, N₂, and H₂O (n ≤ 3)

Abstract

-L(H) dimers and PA is established. Comparison with neutral Py-L dimers reveals the strong impact of the positive charge on the acidity of the NH group, the strength of the NHL H-bond, and the preferred ligand binding motif.