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Nano Research 2021, 14(7): 2309-2313 https://doi.org/10.1007/s12274-020-3227-5
Research Article | Issue | Published: 05 July 2021

Evolution of all-carboxylate-protected superatomic Ag clusters confined in Ti-organic cages

Show Author's Information Xi-Ming Luo1,  Chun-Hua Gong1,  Xi-Yan Dong1,2,  Lei Zhang3 ( ),  Shuang-Quan Zang1( )
Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, China
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China
Keywords:
stability, atomic precision, superatomic silver cluster, titanium organic cage
Topics:
Density functional theoryMass spectrometryNanoclusters
Cite this article:
Luo X-M, Gong C-H, Dong X-Y, et al. Evolution of all-carboxylate-protected superatomic Ag clusters confined in Ti-organic cages. Nano Research, 2021, 14(7): 2309-2313. https://doi.org/10.1007/s12274-020-3227-5
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Abstract Full text Electronic supplementary material About this article

In this study, the size of the titanium organic cage was controlled to achieve the restricted growth from a single Ag(I) atom (Ag@Ti5) to rare all-carboxylate-protected superatomic Ag cluster (Ag6@Ti6). The classical octahedral Ag64+ cluster with two delocalized electrons (2e) has been encapsulated in a Ti6 organic cage, which shows high stability in air and dimethyformamide (DMF). Furthermore, larger 2e nested double-tetrahedra Ag clusters (Ag86+ and Ag97+) protected using a tetrahedral hollow metalloligand framework (Ag8@Ti4 and Ag9@Ti4) were obtained. Electrospray ionization mass spectrometry (ESI-MS) and density functional theory (DFT) calculations confirmed that there are two delocalized electrons on these small Ag clusters. This study provides a new form of protection for superatomic Ag clusters and provides a feasible strategy for the development of stable Ag clusters.


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Abstract
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Electronic supplementary material
About this article

Evolution of all-carboxylate-protected superatomic Ag clusters confined in Ti-organic cages

Show Author's information Xi-Ming Luo1, Chun-Hua Gong1, Xi-Yan Dong1,2, Lei Zhang3 ( ), Shuang-Quan Zang1( )
Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
College of Chemistry and Chemical Engineering, Henan Polytechnic University, Jiaozuo 454000, China
State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Abstract

In this study, the size of the titanium organic cage was controlled to achieve the restricted growth from a single Ag(I) atom (Ag@Ti5) to rare all-carboxylate-protected superatomic Ag cluster (Ag6@Ti6). The classical octahedral Ag64+ cluster with two delocalized electrons (2e) has been encapsulated in a Ti6 organic cage, which shows high stability in air and dimethyformamide (DMF). Furthermore, larger 2e nested double-tetrahedra Ag clusters (Ag86+ and Ag97+) protected using a tetrahedral hollow metalloligand framework (Ag8@Ti4 and Ag9@Ti4) were obtained. Electrospray ionization mass spectrometry (ESI-MS) and density functional theory (DFT) calculations confirmed that there are two delocalized electrons on these small Ag clusters. This study provides a new form of protection for superatomic Ag clusters and provides a feasible strategy for the development of stable Ag clusters.

Keywords: stability, atomic precision, superatomic silver cluster, titanium organic cage

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Publication history
Copyright
Acknowledgements

Publication history

Received: 25 September 2020
Revised: 05 November 2020
Accepted: 06 November 2020
Published: 05 July 2021
Issue date: July 2021

Copyright

© Tsinghua University Press and Springer-Verlag GmbH Germany, part of Springer Nature 2020

Acknowledgements

This work was supported by the National Science Fund for Distinguished Young Scholars (No. 21825106), the National Natural Science Foundation of China (Nos. 21975065 and 21671175), the Program for Science & Technology Innovation Talents in Universities of Henan Province (No. 164100510005), and the Program for Innovative Research Team (in Science and Technology) in Universities of Henan Province (No. 19IRTSTHN022) and Zhengzhou University.

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