RT info:eu-repo/semantics/article
T1 Anticooperative Supramolecular Oligomerization Mediated by V‐Shaped Monomer Design and Unconventional Hydrogen Bonds
A1 Matarranz, Beatriz
A1 Díaz Cabrera, Sandra
A1 Ghosh, Goutam
A1 Carreira Barral, Israel
A1 Soberats, Bartolomé
A1 García Valverde, María
A1 Quesada Pato, Roberto
A1 Fernández, Gustavo
K1 Química orgánica
K1 Chemistry, Organic
K1 Bioquímica
K1 Biochemistry
K1 Biología molecular
K1 Molecular biology
AB After more than three decades of extensive investigations on supramolecular polymers, strategies for self-limiting growth still remain challenging. Herein, we exploit a new V-shaped monomer design to achieve anticooperatively formed oligomers with superior robustness and high luminescence. In toluene, the monomer-oligomer equilibrium is shifted to the monomer side, enabling the elucidation of the molecular packing modes and the resulting (weak) anticooperativity. Steric effects associated with an antiparallel staircase organization of the dyes are proposed to outcompete aromatic and unconventional B−F⋅⋅⋅H−N/C interactions, restricting the growth at the stage of oligomers. In methylcyclohexane (MCH), the packing modes and the anticooperativity are preserved; however, pronounced solvophobic and chain-enwrapping effects lead to thermally ultrastable oligomers. Our results shed light on understanding anticooperative effects and restricted growth in self-assembly.
PB Wiley
SN 1433-7851
YR 2023
FD 2023-02
LK http://hdl.handle.net/10259/8610
UL http://hdl.handle.net/10259/8610
LA eng
NO We thank the Deutsche Forschungsgemeinschaft (SFB858) for funding (B.M. and G.F.). B.S. thanks the MICINN/AEI of Spain for the projects EQC2018-004206-P, RED2018-102331-T, PID2019-107779GA-I00/AEI/10.13039/501100011033 and RYC-2017-21789. M. G.-V. and R.Q. thank funding from Consejería de Educación de la Junta de Castilla y León and ERDF (project BU067P20) and MICN/AEI/10.13039/501100011033 (grant PID2020-117610RB-100). S.D.-C. and I.C.-B. thank Consejería de Educación de la Junta de Castilla y León, ERDF (European Regional Development Fund) and European Social Fund for their pre- and post-doctoral contracts, respectively.Conflict of Interest Open Access funding enabled and organized by Projekt DEAL.
DS Repositorio Institucional de la Universidad de Burgos
RD 09-may-2024