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Versatile non-luminescent color palette based on guest exchange dynamics in paramagnetic cavitands

Author

Listed:
  • Elad Goren

    (Faculty of Chemistry, Weizmann Institute of Science)

  • Liat Avram

    (Faculty of Chemistry, Weizmann Institute of Science)

  • Amnon Bar-Shir

    (Faculty of Chemistry, Weizmann Institute of Science)

Abstract

Multicolor luminescent portrayal of complexed arrays is indispensable for many aspects of science and technology. Nevertheless, challenges such as inaccessible readouts from opaque objects, a limited visible-light spectrum and restricted spectral resolution call for alternative approaches for multicolor representation. Here, we present a strategy for spatial COlor Display by Exploiting Host-guest Dynamics (CODE-HD), comprising a paramagnetic cavitand library and various guests. First, a set of lanthanide-cradled α-cyclodextrins (Ln-CDs) is designed to induce pseudo-contact shifts in the 19F-NMR spectrum of Ln-CD-bound guest. Then, capitalizing on reversible host-guest binding dynamics and using magnetization-transfer 19F-MRI, pseudo-colored maps of complexed arrays are acquired and applied in molecular-steganography scenarios, showing CODE-HD’s ability to generate versatile outputs for information encoding. By exploiting the widely shifted resonances induced by Ln-CDs, the guest versatility and supramolecular systems' reversibility, CODE-HD provides a switchable, polychromatic palette, as an advanced strategy for light-free, multicolor-mapping.

Suggested Citation

  • Elad Goren & Liat Avram & Amnon Bar-Shir, 2021. "Versatile non-luminescent color palette based on guest exchange dynamics in paramagnetic cavitands," Nature Communications, Nature, vol. 12(1), pages 1-8, December.
    • Handle: RePEc:nat:natcom:v:12:y:2021:i:1:d:10.1038_s41467-021-23179-9
    DOI: 10.1038/s41467-021-23179-9
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    Cited by:

    1. Jabadurai Jayapaul & Sanna Komulainen & Vladimir V. Zhivonitko & Jiří Mareš & Chandan Giri & Kari Rissanen & Perttu Lantto & Ville-Veikko Telkki & Leif Schröder, 2022. "Hyper-CEST NMR of metal organic polyhedral cages reveals hidden diastereomers with diverse guest exchange kinetics," Nature Communications, Nature, vol. 13(1), pages 1-10, December.
    2. Jan Kretschmer & Tomáš David & Martin Dračínský & Ondřej Socha & Daniel Jirak & Martin Vít & Radek Jurok & Martin Kuchař & Ivana Císařová & Miloslav Polasek, 2022. "Paramagnetic encoding of molecules," Nature Communications, Nature, vol. 13(1), pages 1-12, December.
    3. Anne Swartjes & Paul B. White & Jeroen P. J. Bruekers & Johannes A. A. W. Elemans & Roeland J. M. Nolte, 2022. "Paramagnetic relaxation enhancement NMR as a tool to probe guest binding and exchange in metallohosts," Nature Communications, Nature, vol. 13(1), pages 1-8, December.

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