RT Journal Article
T1 Tailoring π-conjugation and vibrational modes to steer on-surface synthesis of pentalene-bridged ladder polymers
A1 De la Torre, Bruno
A1 Adam Matěj, Adam
A1 Sánchez-Grande, Ana
A1 Cirera, Borja
A1 Mallada, Benjamín
A1 Rodríguez-Sánchez, Eider
A1 Santos Barahona, José Manuel
A1 Mendieta-Moreno, Jesús
A1 Edalatmanesh, Shayan
A1 Lauwaet, Koen
A1 Otyepka, Michal
A1 Medveď, Miroslav
A1 Buendía, Álvaro
A1 Miranda, Rodolfo
A1 Martín León, Nazario
A1 Pavel, Jelínek
A1 Écij, David
AB The development of synthetic strategies to engineer π-conjugated polymers is of paramount importance in modern chemistry and materials science. Here we introduce a synthetic protocol based on the search for specific vibrational modes through an appropriate tailoring of the π-conjugation of the precursors, in order to increase the attempt frequency of a chemical reaction. First, we design a 1D π-conjugated polymer on Au(111), which is based on bisanthene monomers linked by cumulene bridges that tune specific vibrational modes. In a second step, upon further annealing, such vibrational modes steer the twofold cyclization reaction between adjacent bisanthene moieties, which gives rise to a long pentalene-bridged conjugated ladder polymer featuring a low bandgap. In addition, high resolution atomic force microscopy allows us to identify by atomistic insights the resonance form of the polymer, thus confirming the validity of the Glidewell and Lloyd´s rules for aromaticity. This on-surface synthetic strategy may stimulate exploiting previously precluded reactions towards π-conjugated polymers with specific structures and properties.
PB Springer Nature
SN 2041-1723
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/92479
UL https://hdl.handle.net/20.500.14352/92479
LA eng
NO de la Torre, B., Matěj, A., Sánchez-Grande, A. et al. Tailoring π-conjugation and vibrational modes to steer on-surface synthesis of pentalene-bridged ladder polymers. Nat Commun 11, 4567 (2020). https://doi.org/10.1038/s41467-020-18371-2
NO Academy of Science of the Czech Republic
NO European Commission 
NO Comunidad de Madrid
NO Ministerio de Economía y Competitividad (España)
DS Docta Complutense
RD 4 abr 2025