Xiaoping Yang
Anisotropic lanthanide-based nano-clusters for imaging applications
Yang, Xiaoping; Wang, Shiqing; King, Tyler L.; Kerr, Christopher J.; Blanchet, Clement; Svergun, Dmitri; Pal, Robert; Beeby, Andrew; Vadivelu, Jamuna; Brown, Katherine A.; Jones, Richard A.; Zhang, Lijie; Huang, Shaoming
Authors
Shiqing Wang
Tyler L. King
Christopher J. Kerr
Clement Blanchet
Dmitri Svergun
Professor Robert Pal robert.pal@durham.ac.uk
Professor
Professor Andrew Beeby andrew.beeby@durham.ac.uk
Professor
Jamuna Vadivelu
Katherine A. Brown
Richard A. Jones
Lijie Zhang
Shaoming Huang
Abstract
We have developed a new class of lanthanide nano-clusters that self-assemble using flexible Schiff base ligands. Cd–Ln and Ni–Ln clusters, [Ln8Cd24(L1)12(OAc)39Cl7(OH)2] (Ln = Nd, Eu), [Eu8Cd24(L1)12(OAc)44], [Ln8Cd24(L2)12(OAc)44] (Ln = Nd, Yb, Sm) and [Nd2Ni4(L3)2(acac)6(NO3)2(OH)2], were constructed using different types of flexible Schiff base ligands. These molecular nano-clusters exhibit anisotropic architectures that differ considerably depending upon the presence of Cd (nano-drum) or Ni (square-like nano-cluster). Structural characterization of the self-assembled particles has been undertaken using crystallography, transmission electron microscopy and small-angle X-ray scattering. Comparison of the metric dimensions of the nano-drums shows a consistency of size using these techniques, suggesting that these molecules may share similar structural features in both solid and solution states. Photophysical properties were studied by excitation of the ligand-centered absorption bands in the solid state and in solution, and using confocal microscopy of microspheres loaded with the compounds. The emissive properties of these compounds vary depending upon the combination of lanthanide and Cd or Ni present in these clusters. The results provide new insights into the construction of novel high-nuclearity nano-clusters and offer a promising foundation for the development of new functional nanomaterials.
Citation
Yang, X., Wang, S., King, T. L., Kerr, C. J., Blanchet, C., Svergun, D., …Huang, S. (2016). Anisotropic lanthanide-based nano-clusters for imaging applications. Faraday Discussions, 191, 465-479. https://doi.org/10.1039/c6fd00018e
Journal Article Type | Article |
---|---|
Acceptance Date | Mar 31, 2016 |
Online Publication Date | Mar 31, 2016 |
Publication Date | Oct 1, 2016 |
Deposit Date | Mar 17, 2017 |
Publicly Available Date | Jun 30, 2017 |
Journal | Faraday Discussions |
Print ISSN | 1359-6640 |
Electronic ISSN | 1364-5498 |
Publisher | Royal Society of Chemistry |
Peer Reviewed | Peer Reviewed |
Volume | 191 |
Pages | 465-479 |
DOI | https://doi.org/10.1039/c6fd00018e |
Public URL | https://durham-repository.worktribe.com/output/1390692 |
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Publisher Licence URL
http://creativecommons.org/licenses/by/4.0/
Copyright Statement
This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
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