Co-crystallization of atomically precise metal nanoparticles driven by magic atomic and electronic shells.
Co-crystallization of atomically precise metal nanoparticles driven by magic atomic and electronic shells.
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由神奇原子和电子壳驱动的原子级精确金属纳米粒子的共结晶
DOI:
10.1038/s41467-018-05584-9
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发表时间:
2018-08-22
影响因子:
16.6
通讯作者:
Zheng N
中科院分区:
文献类型:
--
作者:
Yan J;Malola S;Hu C;Peng J;Dittrich B;Teo BK;Häkkinen H;Zheng L;Zheng N
This paper reports co-crystallization of two atomically precise, different-size ligand-stabilized nanoclusters, a spherical (AuAg)267(SR)80 and a smaller trigonal-prismatic (AuAg)45(SR)27(PPh3)6 in 1:1 ratio, characterized fully by X-ray crystallographic analysis (SR = 2,4-SPhMe2). The larger cluster has a four concentric-shell icosahedral structure of Ag@M12@M42@M92@Ag120(SR)80 (M = Au or Ag) with the inner-core M147 icosahedron observed here for metal nanoparticles. The cluster has an open electron shell of 187 delocalized electrons, fully metallic, plasmonic behavior, and a zero HOMO-LUMO energy gap. The smaller cluster has an 18-electron shell closing, a notable HOMO-LUMO energy gap and a molecule-like optical spectrum. This is the first direct demonstration of the simultaneous presence of competing effects (closing of atom vs. electron shells) in nanocluster synthesis and growth, working together to form a co-crystal of different-sized clusters. This observation suggests a strategy that may be helpful in the design of other nanocluster systems via co-crystallization. Atomic shell closure and electronic shell closure are generally considered to be competing effects in stabilizing magic-sized metal nanoclusters. Here, the authors show, by co-crystallizing two differently-sized clusters, that both mechanisms can work concurrently during magic cluster synthesis.
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影响因子:
15
作者:
Mednikov, Evgueni G.;Jewell, Matthew C.;Dahl, Lawrence F.
通讯作者:
Dahl, Lawrence F.
影响因子:
15
作者:
Chen, Yuxiang;Zeng, Chenjie;Jin, Rongchao
通讯作者:
Jin, Rongchao
影响因子:
13.6
作者:
Chen T;Yang S;Chai J;Song Y;Fan J;Rao B;Sheng H;Yu H;Zhu M
通讯作者:
Zhu M
DOI:
10.1007/bf01448248
发表时间:
1991-01-01
期刊:
ZEITSCHRIFT FUR PHYSIK D-ATOMS MOLECULES AND CLUSTERS
影响因子:
--
作者:
MARTIN, TP;BERGMANN, T;LANGE, T
通讯作者:
LANGE, T
DOI:
10.1002/cber.19811141116
发表时间:
1981-01-01
期刊:
CHEMISCHE BERICHTE-RECUEIL
影响因子:
--
作者:
SCHMID, G;PFEIL, R;VANDERVELDEN, WA
通讯作者:
VANDERVELDEN, WA