RT Journal Article
T1 Weakly self-assembled [6]helicenes: circularly polarized light and spin filtering properties
A1 Rodríguez, Rafael
A1 Naranjo Calderón, Cristina
A1 Dhbaibi, Kais
A1 Matozzo, Paola
A1 Camerel, Franck
A1 Vanthuyne, Nicolas
A1 Gómez Aspe, Rafael
A1 Naaman, Ron
A1 Sánchez Martín, Luis
A1 Crassous, Jeanne
AB Self-assembling features, chiroptical activity, and spin filtering properties are reported for 2,15- and 4,13-disubstituted [6]helicenes decorated in their periphery with 3,4,5- tris(dodecyloxy)-N-(4-ethynylphenyl)benzamide moieties. The weak non-covalent interaction between these units conditions the corresponding circularly polarized luminescence and spin polarization. The self-assembly is overall weak for these [6]helicene derivatives that, despite the formation of H-bonding interactions between the amide groups present in the peripheral moieties, shows very similar chiroptical properties both in the monomeric or aggregated states. This effect could be explained by considering the steric effect that these groupscould generate in the growing of the corresponding aggregate formed. Importantly, the self-assembling features also condition chiral induced spin selectivity (CISS effect), with experimental spin polarization (SP) values found between 35–40 % for both systems, as measured by magnetic-conducting atomic force microscopy (AFM) technique.
PB Wiley-VCH
YR 2023
FD 2023
LK https://hdl.handle.net/20.500.14352/105838
UL https://hdl.handle.net/20.500.14352/105838
LA eng
NO Chem. Eur. J. 2023, 29, e202302254
NO MCIN/AEI of Spain
DS Docta Complutense
RD 25 abr 2025