Modular supramolecular dimerization of optically tunable extended aryl viologens.
Authors
Olesińska, Magdalena
Gómez-Coca, Silvia
Szabó, Istvan
Publication Date
2019-10Journal Title
Chemical science
ISSN
2041-6520
Publisher
Royal Society of Chemistry
Volume
10
Issue
38
Pages
8806-8811
Language
eng
Type
Article
This Version
AM
Physical Medium
Electronic-eCollection
Metadata
Show full item recordCitation
Olesińska, M., Wu, G., Gómez-Coca, S., Antón-García, D., Szabó, I., Rosta, E., & Scherman, O. (2019). Modular supramolecular dimerization of optically tunable extended aryl viologens.. Chemical science, 10 (38), 8806-8811. https://doi.org/10.1039/c9sc03057c
Abstract
Cucurbit[8]uril (CB[8]) mediated assembly of extended aryl viologens (EVs) into optically-tunable dimers is reported for the first time. We show that modular design and synthesis of a new class of -conjugated viologen derivatives with rigid aromatic or heteroaromatic bridging units as well as
electron donating molecular recognition motifs enables their self-assembly into 2:2 complexes with CB[8]. The quantitative dimerization process involving these two molecular components in an aqueous solution enables excimer-like interactions between closely packed charged guests giving rise to distinct spectroscopic behavior. The nature of these dimers (CB[8]2 · (EV[X]R)2) in the ground and excited states were
characterized by NMR, isothermal titration calorimetry, and steady-state spectroscopic measurements.
Sponsorship
Marie Curie FP7 SASSYPOL ITN (607602) programme;
Leverhulme Trust (Natural material innovation for sustainable living); EPSRC DTP (EP/M508007/1);
EPSRC (EP/R013012/1, EP/L027151/1, EP/N020669/1);
BBSRC (BB/N007700/1);
ERC (project 757850 BioNet ;
ERC-2016 Consolidator Grant (CAMRIG, 726470);
The EPSRC UK national mass spectrometry facility at Swansea University
Funder references
European Commission (607602)
Leverhulme Trust (RP2013-SL-008)
European Commission Horizon 2020 (H2020) ERC (726470)
EPSRC (EP/L027151/1)
EPSRC (EP/M508007/1)
Embargo Lift Date
2022-08-08
Identifiers
External DOI: https://doi.org/10.1039/c9sc03057c
This record's URL: https://www.repository.cam.ac.uk/handle/1810/295530
Rights
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