Superatom–atom super-bonding in metallic clusters: a new look to the mystery of an Au20 pyramid

Longjiu Cheng; Xiuzhen Zhang; Baokang Jin; Jinlong Yang

doi:10.1039/C4NR03550J

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Superatom–atom super-bonding in metallic clusters: a new look to the mystery of an Au₂₀ pyramid†

Longjiu Cheng,*^a Xiuzhen Zhang,^a Baokang Jin^a and Jinlong Yang*^b

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* Corresponding authors

^a Department of Chemistry, Anhui University, Hefei, Anhui, People's Republic of China
E-mail: clj@ustc.edu

^b Hefei National Laboratory for Physics Sciences at the Microscale, University of Science & Technology of China, Hefei, Anhui, People's Republic of China
E-mail: jlyang@ustc.edu.cn

Abstract

Using the super valence bond model, a generalized chemical picture for the electronic shells of an Au₂₀ pyramid is given. It is found that Au₂₀ can be viewed to be a superatomic molecule, of which its superatomic 16c–16e core (T) is in D³S hybridization bonded with four vertical Au atoms for the molecule-like (TAu₄) electronic shell-closure. Based on such a superatom–atom bonding model, TX₄ (X = F, Cl, or Br) are predicted to be very stable. Such a superatom–atom T–Au/T–X bonding enriches the scope of chemistry.

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Article information

DOI: https://doi.org/10.1039/C4NR03550J
Article type: Communication
Submitted: 25 Jun 2014
Accepted: 09 Sep 2014
First published: 11 Sep 2014

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Nanoscale, 2014,6, 12440-12444

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Superatom–atom super-bonding in metallic clusters: a new look to the mystery of an Au₂₀ pyramid

L. Cheng, X. Zhang, B. Jin and J. Yang, Nanoscale, 2014, 6, 12440 DOI: 10.1039/C4NR03550J

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