首页|Silvery fullerene in Ag102 nanosaucer

Silvery fullerene in Ag102 nanosaucer

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Despite the discovery of a series of fullerenes and a handful of noncarbon clusters with the typical topology of Ih-C60,the smallest fullerene with a large degree of curvature,C20,and its other-element counterparts are difficult to isolate experimentally.In coinage metal nanoclusters(NCs),the first all-gold fullerene,Au32,was discovered after a long-lasting pursuit,but the isolation of similar silvery fullerene structures is still challenging.Herein,we report a flying saucer-shaped 102-nuclei silver NC(Ag102)with a silvery fullerene kernel of Ag32,which is embraced by a robust cyclic anionic passivation layer of(KPO4)10.This Ag32 kernel can be viewed as a non-centered icosahedron Ag12 encaged into a dodecahedron Ag20,forming the silvery fullerene of Ag12@Ag2o.The anionic layer(KPO4)10 is located at the interlayer between the Ag32 kernel and Ag70 shell,passivating the Ag32 silvery fullerene and templating the Ag70 shell.The tBuPhS-and CF3COO-ligands on the silver shell show a regioselective arrangement with the 60 tBuPhS-ligands as expanders covering the upper and lower of the flying saucer and 10 CF3COO-as terminators neatly encircling the edges of the structure.In addition,Ag102 shows excellent photothermal conversion efficiency(η)from the visible to near-infrared region(η=67.1％±0.9％at 450 nm,60.9％±0.9％at 660 nm and 50.2％±0.5％at 808 nm),rendering it a promising material for photothermal converters and potential application in remote laser ignition.This work not only captures silver kernels with the topology of the smallest fullerene C20,but also provides a pathway for incorporating alkali metal(M)into coinage metal NCs via M-oxoanions.

silvery fullereneAg102 nanosaucercyclic anionic passivation layerphotothermal conversionDFT calculation

Zhi Wang、Yuchen Wang、Chengkai Zhang、Yan-Jie Zhu、Ke-Peng Song、Christine M.Aikens、Chen-Ho Tung、Di Sun

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School of Chemistry and Chemical Engineering,Shandong University,Ji'nan 250100,China

Department of Chemistry,Kansas State University,Manhattan 66506,USA

National Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaNational Natural science Foundation of ChinaInstrument Improvement Funds of Shandong University Public Technology PlatformJiangxi'Double Thousand'PlanNational Science Foundation of the United StatesBeocat Research Cluster at Kansas State UniversityNSFNSFNSFNSF

22325105222011592217116452261135637ts20220102S2021DQKJ1856CHE-1905048CHE-1726332CNS-1006860EPS-1006860EPS-0919443

2024

10.1093/nsr/nwae192

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ISSN：
年,卷(期)：2024.11(7)
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