Alzubi, MohammadArias, SandraLouzao Pernas, IriaQuiñoá Cabana, EmilioRiguera Vega, RicardoFreire Iribarne, Félix Manuel2018-02-012018-07-062017-07-06Alzubi, M., Arias, S., Louzao, I., Quiñoá, E., Riguera, R., & Freire, F. (2017). Multipodal dynamic coordination involving cation–π interactions to control the structure of helical polymers. Chemical Communications, 53(61), 8573-8576. http://dx.doi.org/10.1039/c7cc04220e1359-7345http://hdl.handle.net/10347/16406A precise tuning of the four possible states of a helix (P/M helical sense and stretched/compressed helical backbone) is attained by controlling the complexation between Li+ and a poly(phenylacetylene) that bears amide, ester and phenyl ring functionalities at the pendant group. Depending on the MeOH ratio that is present as a cosolvent, different coordination sites are involved in interactions leading to complexes I–III, each one with a characteristic structure (tri-, bi-, and unipodal) and an associated helical state. This dynamic coordination allows the selective modification of the helical sense or the stretching/compression backbone of a helical polymereng© Royal Society of Chemistryjournal article10.1039/c7cc04220e1364-548Xopen access