RT Conference Proceedings
T1 Camouflaged Holes Assist Negative Charge Motion in Radical-Anion Molecular Wires
A1 Mayorga-Burrezo, Paula
A1 Franco, Carlos
A1 Lloveras, Vega
A1 Caballero, Rubén
A1 Alcón, Isaac
A1 Bromley, Stefan
A1 Mas-Torrent, Marta
A1 Langa-de-la-Puente, Fernando
A1 López-Navarrete, Juan Teodomiro
A1 Rovira, Concepciò
A1 Casado-Cordón, Juan
A1 Veciana, Jaume
K1 Semiconductores orgánicos
AB Charge transfer in molecular wires over varying distances is a subject of great interest inthe field of molecular electronics. By increasing the distance between the electroactivecenters, transport mechanisms generally accounted for on the basis of tunneling orsuperexchange operating over small distances, progressively gives way to hoppingassisted transport. However, the underlying molecular sequential steps that likely takeplace during hopping and the operative mechanism occurring at intermediate distanceshave received much less attention given the difficulty in assessing detailed molecular-levelinformation. We describe here the operating mechanisms for unimolecular electrontransfer in the ground state of radical-anion mixed-valence derivatives occurring betweentheir terminal perchlorotriphenylmethyl/ide groups through thiophene-vinylene oligomersthat act as conjugated wires of increasing length up to 30 Å. In this sense, while in theshorter radical-anions a flickering resonance mechanism is the operative one, in the largermolecular wires, as a unique finding, the net transport of the electron is assisted by anelectron-hole delocalization.
YR 2016
FD 2016-10-06
LK http://hdl.handle.net/10630/12161
UL http://hdl.handle.net/10630/12161
LA eng
NO Universidad de Málaga. Campus de Excelencia Internacional Andalucía Tech.
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 21 ene 2026