Multicolor photoluminescence of Cu14 clusters modulated using surface ligands
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F24%3A00588530" target="_blank" >RIV/61388980:_____/24:00588530 - isvavai.cz</a>
Result on the web
<a href="https://hdl.handle.net/11104/0355578" target="_blank" >https://hdl.handle.net/11104/0355578</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1039/d4sc01566e" target="_blank" >10.1039/d4sc01566e</a>
Alternative languages
Result language
angličtina
Original language name
Multicolor photoluminescence of Cu14 clusters modulated using surface ligands
Original language description
Copper nanoclusters exhibit unique structural features and their molecular assembly results in diverse photoluminescence properties. In this study, we present ligand-dependent multicolor luminescence observed in a Cu-14 cluster, primarily protected by ortho-carborane-9,12-dithiol (o-CBDT), featuring an octahedral Cu-6 inner kernel enveloped by eight isolated copper atoms. The outer layer of the metal kernel consists of six bidentate o-CBDT ligands, in which carborane backbones are connected through mu(3)-sulphide linkages. The initially prepared Cu-14 cluster, solely protected by six o-CBDT ligands, did not crystallize in its native form. However, in the presence of N,N-dimethylformamide (DMF), the cluster crystallized along with six DMF molecules. Single-crystal X-ray diffraction (SCXRD) revealed that the DMF molecules were directly coordinated to six of the eight capping Cu atoms, while oxygen atoms were bound to the two remaining Cu apices in antipodal positions. Efficient tailoring of the cluster surface with DMF shifted its luminescence from yellow to bright red. Luminescence decay profiles showed fluorescence emission for these clusters, originating from the singlet states. Additionally, we synthesized microcrystalline fibers with a one-dimensional assembly of DMF-appended Cu-14 clusters and bidentate DPPE linkers. These fibers exhibited bright greenish-yellow phosphorescence emission, originating from the triplet state, indicating the drastic surface tailoring effect of secondary ligands. Theoretical calculations provided insights into the electronic energy levels and associated electronic transitions for these clusters. This work demonstrated dynamic tuning of the emissive excited states of copper nanoclusters through the efficient engineering of ligands.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10402 - Inorganic and nuclear chemistry
Result continuities
Project
<a href="/en/project/LTAIN19152" target="_blank" >LTAIN19152: Carborane-protected metal nanoclusters: A new family of materials with atomic precision</a><br>
Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Science
ISSN
2041-6520
e-ISSN
2041-6539
Volume of the periodical
15
Issue of the periodical within the volume
34
Country of publishing house
GB - UNITED KINGDOM
Number of pages
12
Pages from-to
13741-13752
UT code for WoS article
001283026100001
EID of the result in the Scopus database
2-s2.0-85200385716