RT Journal Article
T1 Diradical Organic One‐Dimensional Polymers Synthesized on a Metallic Surface
A1 Sánchez‐Grande, Ana
A1 Urgel, José
A1 Cahlík, Aleš
A1 Santos Barahona, José Manuel
A1 Edalatmanesh, Shayan
A1 Rodríguez Sánchez, Eider
A1 Lauwaet, Koen
A1 Mutombo, Pingo
A1 Nachtigallová, Dana
A1 Nieman, Reed
A1 Lischka, Hans
A1 de la Torre, Bruno
A1 Miranda, Rodolfo
A1 Gröning, Oliver
A1 Nazario Martín, 
A1 Martín León, Nazario
A1 Jelínek, Pavel
A1 Écija, David
AB AbstractWe report on the synthesis and characterization of atomically precise one‐dimensional diradical peripentacene polymers on a Au(111) surface. By means of high‐resolution scanning probe microscopy complemented by theoretical simulations, we provide evidence of their magnetic properties, which arise from the presence of two unpaired spins at their termini. Additionally, we probe a transition of their magnetic properties related to the length of the polymer. Peripentacene dimers exhibit an antiferromagnetic (S=0) singlet ground state. They are characterized by singlet–triplet spin‐flip inelastic excitations with an effective exchange coupling (J eff) of 2.5 meV, whereas trimers and longer peripentacene polymers reveal a paramagnetic nature and feature Kondo fingerprints at each terminus due to the unpaired spin. Our work provides access to the precise fabrication of polymers featuring diradical character which are potentially useful in carbon‐based optoelectronics and spintronics.
PB Wiley
SN 1433-7851
YR 2020
FD 2020
LK https://hdl.handle.net/20.500.14352/93402
UL https://hdl.handle.net/20.500.14352/93402
LA eng
NO A. Sánchez-Grande, J. I. Urgel, A. Cahlík, J. Santos, S. Edalatmanesh, E. Rodríguez-Sánchez, K. Lauwaet, P. Mutombo, D. Nachtigallová, R. Nieman, H. Lischka, B. de la Torre, R. Miranda, O. Gröning, N. Martín, P. Jelínek, D. Écija, Angew. Chem. Int. Ed. 2020, 59, 17594.
NO European Commission
NO Comunidad de Madrid
NO Ministerio de Economía y Competitividad (España)
DS Docta Complutense
RD 15 abr 2025