0539914 - FZÚ 2021 RIV GB eng J - Journal Article
De La Torre Cerdeño, Bruno - Matěj, Adam - Sánchez-Grande, A. - Cirera, B. - Mallada Faes, Benjamin Jose - Rodriguez-Sanchez, E. - Santos, J. - Mendieta Moreno, Jesús Ignacio - Edalatmanesh, Shayan - Lauwaet, K. - Otyepka, M. - Medveď, M. - Buendía, Á. - Miranda, R. - Martín, N. - Jelínek, Pavel - Écija, D.
Tailoring π-conjugation and vibrational modes to steer on-surface synthesis of pentalene-bridged ladder polymers.
Nature Communications. Roč. 11, č. 1 (2020), s. 1-8, č. článku 4567. ISSN 2041-1723. E-ISSN 2041-1723
Grant - others:AV ČR(CZ) AP1601
Program: Akademická prémie - Praemium Academiae
Institutional support: RVO:68378271
Keywords : nc-AFM * on surface chemistry * 1D chains * DFT * topology
OECD category: Condensed matter physics (including formerly solid state physics, supercond.)
Impact factor: 14.919, year: 2020 ; AIS: 5.565, rok: 2020
Method of publishing: Open access
DOI: https://doi.org/10.1038/s41467-020-18371-2

First, we on-surface design a 1D pi-conjugated polymer with specific pi-topology, 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 two-fold cyclization reaction between adjacent bisanthene moieties, which gives rise to a long and free-defect pentalene-bridged conjugated ladder polymer featuring a low band gap. In addition, high resolution atomic force microscopy allows us to identify by atomistic insights the resonant 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 novel pi-conjugated polymers with specific structures and properties.
Permanent Link: http://hdl.handle.net/11104/0317607