Structural and Photophysical Templating of Conjugated Polyelectrolytes with Single-Stranded DNA.

ABSTRACT: A promising approach to influence and control the photophysical properties of conjugated polymers is directing their molecular conformation by templating. We explore here the templating effect of single-stranded DNA oligomers (ssDNAs) on cationic polythiophenes with the goal to uncover the intermolecular interactions that direct the polymer backbone conformation. We have comprehensively characterized the optical behavior and structure of the polythiophenes in conformationally distinct complexes depending on the sequence of nucleic bases and addressed the effect on the ultrafast excited-state relaxation. This, in combination with molecular dynamics simulations, allowed us a detailed atomistic-level understanding of the structure-property correlations. We find that electrostatic and other no

SUBMITTER: Peterhans L 

PROVIDER: S-EPMC7587141 | biostudies-literature | 2020 Sep

REPOSITORIES: biostudies-literature