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Encapsulation of an Au25 nanocluster inside a porphyrin nanoring enhances singlet oxygen generation and photo‐electrocatalytic CO2 reduction

Abstract:
The synthesis of molecular host-guest complexes with enhanced performance, relative to those of their components, is a central theme in supramolecular chemistry. Here we explore a host-guest system consisting of an atomically precise gold nanocluster bound inside a zinc porphyrin nanoring. UV/Vis absorption and fluorescence titrations with different sized nanorings revealed strong binding between a pyridinethiol-coated Au25 nanocluster and a nanoring consisting of six zinc porphyrin units, and complexation is confirmed by mass spectrometry. Formation of this assembly enhances the stability of the gold nanocluster. The host-guest complex also exhibits remarkable activity and selectivity for photochemical CO2 to CO conversion and singlet oxygen generation.
Publication status:
Published
Peer review status:
Peer reviewed

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Publisher copy:
10.1002/anie.202414908

Authors

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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Chemistry Research Laboratory
Role:
Author
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Institution:
University of Oxford
Division:
MPLS
Department:
Chemistry
Sub department:
Organic Chemistry
Role:
Author
ORCID:
0000-0002-1801-8132


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Funder identifier:
https://ror.org/0472cxd90
Grant:
885606
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Funder identifier:
https://ror.org/00yjd3n13
Grant:
200020_214996


Publisher:
Wiley
Journal:
Angewandte Chemie International Edition More from this journal
Volume:
64
Issue:
2
Article number:
e202414908
Place of publication:
Germany
Publication date:
2024-11-13
Acceptance date:
2024-10-18
DOI:
EISSN:
1521-3773
ISSN:
1433-7851
Pmid:
39429110


Language:
English
Keywords:
Pubs id:
2041419
Local pid:
pubs:2041419
Deposit date:
2025-05-26
ARK identifier:

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