Title: The Role of the Degree of Polymerization in the Chiroptical Properties of Dynamic Asymmetric Poly(diphenylacetylene)s

Authors: Juan José Tarrío, Berta Fernández, Emilio Quiñoá, Félix Freire

DOI: 10.1039/D3TC01419C Date: 05/24/2023

Working Group: WG1

Grant Period: First

Grant Period Goal (number): 1.3

Covered deliverables from the MoU (number): 1.4.2

Countries involved: Spain

Number of female/young/ITC coauthors: 1

Abstract: Non-symmetric poly(diphenylacetylene)s (PDPAs) show a strong relationship between the size of the macromolecules and their electronic circular dichroism (ECD) spectra. Thus, polymers and oligomers of PDPAs with the same screw sense excess show opposite ECD spectra. This fact is due to complex ECD spectra where the main electronic transitions depend on the degree of polymerization (DP).