title: Unexpected stable dimerisation of an anionic imidopyrrolecarboxylate in polar solution.
abstract: The imidopyrrolecarboxylate 3(-) unexpectedly forms stable dimers (K(ass) = 130 M(-1) in CHCl(3)/DMSO, 1 : 1, v/v) despite the fact that two anions have to interact. The dimer is more stable than an analogous neutral amidopyrrolecarboxylic acid dimer (K(ass) < 10 M(-1)) underlining the importance of charged H-bonds compared to neutral ones.
authors.affiliation: University of Duisburg-Essen, Faculty of Chemistry, Universitaetsstrasse 7, 45141 Essen, Germany.
authors.forename: Carolin
authors.initials: C
authors.lastname: Rether
authors.forename: Elisabeth
authors.initials: E
authors.lastname: Verheggen
authors.forename: Carsten
authors.initials: C
authors.lastname: Schmuck