Journal article
Heterometallic lanthanide complexes with site-specific binding that enable simultaneous visible and NIR-emission
- Abstract:
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Macrocyclic lanthanide complexes have become widely developed due to their distinctive luminescence characteristics and wide range of applications in biological imaging. However, systems with sufficient brightness and metal selectivity can be difficult to produce on a molecular scale. Presented herein is the stepwise introduction of differing lanthanide ions in a bis-DO3A/DTPA scaffold to afford three trinuclear bimetallic [Ln2Ln’] lanthanide complexes with site-specific, controlled binding [(Yb2Tb), (Eu2Tb), (Yb2Eu)]. The complexes display simultaneous emission from all LnIII centers across the visible (TbIII, EuIII) and near infra-red (YbIII) spectrum when excited via phenyl ligand sensitization at a wide range of temperatures and are consequently of interest for exploiting imaging in the near infra-red II biological window. Analysis of lifetime data over a range of excitation regimes reveals intermetallic communication between TbIII and EuIII centers and further develops the understanding of multimetallic lanthanide complexes.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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- Files:
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(Preview, Version of record, pdf, 2.3MB, Terms of use)
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- Publisher copy:
- 10.3389/fchem.2023.1232690
Authors
- Funder identifier:
- https://ror.org/00cwqg982
- Grant:
- BB/M011208/1
- Publisher:
- Frontiers Media
- Journal:
- Frontiers in Chemistry More from this journal
- Volume:
- 11
- Article number:
- 1232690
- Publication date:
- 2023-07-31
- Acceptance date:
- 2023-07-17
- DOI:
- EISSN:
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2296-2646
- Pmid:
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37583568
- Language:
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English
- Keywords:
- Pubs id:
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1510227
- Local pid:
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pubs:1510227
- Deposit date:
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2025-03-28
- ARK identifier:
Terms of use
- Copyright holder:
- Thornton et al.
- Copyright date:
- 2023
- Rights statement:
- Copyright © 2023 Thornton, Hemsworth, Hay, Parkinson, Faulkner and Natrajan. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
- Licence:
- CC Attribution (CC BY)
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