{"title":"受水溶性手性单硫醇 N-乙酰基-(S)-青霉胺 (S-NAP) 保护的单金原子掺杂 AuAg28 团簇的一锅合成及其光电活性","authors":"","doi":"10.1016/j.jphotochem.2024.115981","DOIUrl":null,"url":null,"abstract":"<div><p>Physicochemical properties of atomically precise metal clusters can be modulated by incorporating different metal atoms. In this article, successful one-pot synthesis of single Au-atom doped chiral AuAg<sub>28</sub> clusters protected by water-soluble <em>N</em>‑acetyl‑(<em>S</em>)‑penicillamine (=<em>S</em>-NAP) is reported. The reduction of Ag and Au ions at 0 °C in the presence of <em>S</em>-NAP and triphenylphosphine (TPP) using tetramethylammonium borohydride (TMAB) is crucial. Importantly, upon doping of an Au atom to the monometallic Ag<sub>29</sub> cluster, which improves the cluster stability, the chiroptical activity or maximum anisotropy factor of the bimetallic AuAg<sub>28</sub> cluster is enhanced as compared to that of the monometallic species, which can be due to an increase in the rotatory strength that is probably brought about by the increased contribution of optical transition associated with helically-arranged surface shell layers. Such chiroptical behaviors suggest that the Au dopant position in the bimetallic cluster is not fluxional but rigid. Then the present results will help design some heteroatom-doped silver clusters with excellent chiroptical properties.</p></div>","PeriodicalId":16782,"journal":{"name":"Journal of Photochemistry and Photobiology A-chemistry","volume":null,"pages":null},"PeriodicalIF":4.1000,"publicationDate":"2024-08-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1010603024005252/pdfft?md5=4c7653cbb6ac85c10fffbcff42364f77&pid=1-s2.0-S1010603024005252-main.pdf","citationCount":"0","resultStr":"{\"title\":\"One-pot synthesis and chiroptical activity of single Au-atom doped AuAg28 clusters protected by water-soluble chiral monothiol N‑acetyl‑(S)‑penicillamine (S-NAP)\",\"authors\":\"\",\"doi\":\"10.1016/j.jphotochem.2024.115981\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>Physicochemical properties of atomically precise metal clusters can be modulated by incorporating different metal atoms. In this article, successful one-pot synthesis of single Au-atom doped chiral AuAg<sub>28</sub> clusters protected by water-soluble <em>N</em>‑acetyl‑(<em>S</em>)‑penicillamine (=<em>S</em>-NAP) is reported. The reduction of Ag and Au ions at 0 °C in the presence of <em>S</em>-NAP and triphenylphosphine (TPP) using tetramethylammonium borohydride (TMAB) is crucial. Importantly, upon doping of an Au atom to the monometallic Ag<sub>29</sub> cluster, which improves the cluster stability, the chiroptical activity or maximum anisotropy factor of the bimetallic AuAg<sub>28</sub> cluster is enhanced as compared to that of the monometallic species, which can be due to an increase in the rotatory strength that is probably brought about by the increased contribution of optical transition associated with helically-arranged surface shell layers. Such chiroptical behaviors suggest that the Au dopant position in the bimetallic cluster is not fluxional but rigid. Then the present results will help design some heteroatom-doped silver clusters with excellent chiroptical properties.</p></div>\",\"PeriodicalId\":16782,\"journal\":{\"name\":\"Journal of Photochemistry and Photobiology A-chemistry\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":4.1000,\"publicationDate\":\"2024-08-22\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.sciencedirect.com/science/article/pii/S1010603024005252/pdfft?md5=4c7653cbb6ac85c10fffbcff42364f77&pid=1-s2.0-S1010603024005252-main.pdf\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Photochemistry and Photobiology A-chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S1010603024005252\",\"RegionNum\":3,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, PHYSICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Photochemistry and Photobiology A-chemistry","FirstCategoryId":"92","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1010603024005252","RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, PHYSICAL","Score":null,"Total":0}
One-pot synthesis and chiroptical activity of single Au-atom doped AuAg28 clusters protected by water-soluble chiral monothiol N‑acetyl‑(S)‑penicillamine (S-NAP)
Physicochemical properties of atomically precise metal clusters can be modulated by incorporating different metal atoms. In this article, successful one-pot synthesis of single Au-atom doped chiral AuAg28 clusters protected by water-soluble N‑acetyl‑(S)‑penicillamine (=S-NAP) is reported. The reduction of Ag and Au ions at 0 °C in the presence of S-NAP and triphenylphosphine (TPP) using tetramethylammonium borohydride (TMAB) is crucial. Importantly, upon doping of an Au atom to the monometallic Ag29 cluster, which improves the cluster stability, the chiroptical activity or maximum anisotropy factor of the bimetallic AuAg28 cluster is enhanced as compared to that of the monometallic species, which can be due to an increase in the rotatory strength that is probably brought about by the increased contribution of optical transition associated with helically-arranged surface shell layers. Such chiroptical behaviors suggest that the Au dopant position in the bimetallic cluster is not fluxional but rigid. Then the present results will help design some heteroatom-doped silver clusters with excellent chiroptical properties.
期刊介绍:
JPPA publishes the results of fundamental studies on all aspects of chemical phenomena induced by interactions between light and molecules/matter of all kinds.
All systems capable of being described at the molecular or integrated multimolecular level are appropriate for the journal. This includes all molecular chemical species as well as biomolecular, supramolecular, polymer and other macromolecular systems, as well as solid state photochemistry. In addition, the journal publishes studies of semiconductor and other photoactive organic and inorganic materials, photocatalysis (organic, inorganic, supramolecular and superconductor).
The scope includes condensed and gas phase photochemistry, as well as synchrotron radiation chemistry. A broad range of processes and techniques in photochemistry are covered such as light induced energy, electron and proton transfer; nonlinear photochemical behavior; mechanistic investigation of photochemical reactions and identification of the products of photochemical reactions; quantum yield determinations and measurements of rate constants for primary and secondary photochemical processes; steady-state and time-resolved emission, ultrafast spectroscopic methods, single molecule spectroscopy, time resolved X-ray diffraction, luminescence microscopy, and scattering spectroscopy applied to photochemistry. Papers in emerging and applied areas such as luminescent sensors, electroluminescence, solar energy conversion, atmospheric photochemistry, environmental remediation, and related photocatalytic chemistry are also welcome.