RT Journal Article
T1 Aggregation of one-dimensional wires: The case of long oligoynes
A1 Gordillo Gámez, Fernando
A1 Gao, Yueze
A1 Aragó, Juan
A1 Ortí, Enrique
A1 Aranda, Daniel
A1 Kertesz, Miklos
A1 Tykwinski, Rik R.
A1 Casado, Juan
K1 Química física
K1 Química - Notación
K1 Moléculas
AB We show an unexpected aggregation phenomenon of a long oligoyne (Py[16]) with 16 contiguous triple bonds and endcapped with bulky 3,5-bi(3,5-bis-tert-butylphenyl)pyridine groups. Aggregation of 1D π-conjugated oligoyne chains is rare given the minimal π–π intermolecular interactions as well as its flexibility that works against self-assembly. In dilute solutions, the reversible aggregation of Py[16] initiates at low temperature in the range of 140–180 K, and is not observed for shorter oligoynes in this series. Cryogenic UV/Vis electronic absorption spectra and vibrational Raman spectra with different laser wavelength lines tuning from in-resonance to off-resonance conditions have been used to extract the vibrational features characterizing the monomer and aggregate species. Theoretical calculations complement the spectroscopic findings.
PB Wiley
YR 2024
FD 2024
LK https://hdl.handle.net/10630/32853
UL https://hdl.handle.net/10630/32853
LA eng
NO F. Gordillo-Gámez, Y. Gao, J. Aragó, E. Ortí, D. Aranda, M. Kertesz, R. R. Tykwinski, J. Casado, Angew. Chem. Int. Ed. 2024, 63, e202404014. https://doi.org/10.1002/anie.202404014
NO Funding for open access charge: Universidad de Málaga / CBUA
DS RIUMA. Repositorio Institucional de la Universidad de Málaga
RD 23 ene 2026