Encapsulation of an Au 25 Nanocluster inside a Porphyrin Nanoring Enhances Singlet Oxygen Generation and Photo-Electrocatalytic CO 2 Reduction.

Autor: Ziarati A; Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet,1211, Geneva 4, Switzerland., Gotfredsen H; Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, UK., Rosspeintner A; Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet,1211, Geneva 4, Switzerland., Zhao J; Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet,1211, Geneva 4, Switzerland., Anderson HL; Department of Chemistry, University of Oxford, Chemistry Research Laboratory, Oxford OX1 3TA, UK., Bürgi T; Department of Physical Chemistry, University of Geneva, 30 Quai Ernest-Ansermet,1211, Geneva 4, Switzerland.
Jazyk: angličtina
Zdroj: Angewandte Chemie (International ed. in English) [Angew Chem Int Ed Engl] 2024 Oct 21, pp. e202414908. Date of Electronic Publication: 2024 Oct 21.
DOI: 10.1002/anie.202414908
Abstrakt: 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 Au 25 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 CO 2 to CO conversion and singlet oxygen generation.
(© 2024 The Author(s). Angewandte Chemie International Edition published by Wiley-VCH GmbH.)
Databáze: MEDLINE
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