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Tuning the Fluorescence Through Reorientation of the Axle in Calix[6]arene‐Based Pseudorotaxanes
Author(s) -
Bazzoni Margherita,
Terenziani Francesca,
Secchi Andrea,
Cera Gianpiero,
Jabin Ivan,
De Leener Gaël,
Luhmer Michel,
Arduini Arturo
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201905500
Subject(s) - fluorescence , yield (engineering) , chemistry , polar , salt (chemistry) , crystallography , photochemistry , materials science , optics , physics , organic chemistry , astronomy , metallurgy
This work describes a calix[6]arene‐based wheel that binds, in non‐polar media, a stilbazolium salt to yield a mixture of pseudorotaxane orientational isomers. The isomer's abundance ratio evolves with time and can be reversibly tuned by adjusting the temperature. The spectroscopic properties, and notably the emission spectrum, of the bound guest depend on its orientation inside the non‐palindromic wheel, suggesting such a system as a switch with spectroscopic readout.