Studies on conjugated polymers seldom report on their NMR characterization in solution. This paper shows how NMR experiments, both 1H NMR and routine 2D NMR spectra, can help in gaining a further insight into the aggregation behavior of conjugated polymers and could be used to flank the more employed solid-state NMR and other spectroscopy and microscopy techniques in the understanding of the aggregation processes. NMR spectroscopy allows distinguishing, within the class of poorly solvatochromic conjugated polymers, those highly prone to form π-stacked aggregates from the ones that have a low tendency toward π-stacking.

Π‑Stacking Signature in NMR Solution Spectra of Thiophene-Based Conjugated Polymers / Parenti, Francesca; Tassinari, Francesco; Libertini, Emanuela; Lanzi, Massimiliano; Mucci, Adele. - In: ACS OMEGA. - ISSN 2470-1343. - 2(2017), pp. 5775-5784.

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