A1 Journal article (refereed)
Copper-hydride nanoclusters with enhanced stability by N-heterocyclic carbenes (2021)


Shen, H., Wang, L., López-Estrada, O., Hu, C., Wu, Q., Cao, D., Malola, S., Teo, B. K., Häkkinen, H., & Zheng, N. (2021). Copper-hydride nanoclusters with enhanced stability by N-heterocyclic carbenes. Nano Research, 14(9), 3303-3308. https://doi.org/10.1007/s12274-021-3389-9


JYU authors or editors


Publication details

All authors or editorsShen, Hui; Wang, Lingzheng; López-Estrada, Omar; Hu, Chengyi; Wu, Qingyuan; Cao, Dongxu; Malola, Sami; Teo, Boon K.; Häkkinen, Hannu; Zheng, Nanfeng

Journal or seriesNano Research

ISSN1998-0124

eISSN1998-0000

Publication year2021

Publication date23/03/2021

Volume14

Issue number9

Pages range3303-3308

PublisherSpringer

Publication countryHong Kong

Publication languageEnglish

DOIhttps://doi.org/10.1007/s12274-021-3389-9

Publication open accessOpenly available

Publication channel open accessPartially open access channel

Publication is parallel published (JYX)https://jyx.jyu.fi/handle/123456789/74893


Abstract

Copper-hydrides have been intensively studied for a long time due to their utilization in a variety of technologically important chemical transformations. Nevertheless, poor stability of the species severely hinders its isolation, storage and operation, which is worse for nano-sized ones. We report here an unprecedented strategy to access to ultrastable copper-hydride nanoclusters (NCs), namely, using bidentate N-heterocyclic carbenes as stabilizing ligands in addition to thiolates. In this work, a simple synthetic protocol was developed to synthesize the first large copper-hydride nanoclusters (NCs) stabilized by N-heterocyclic carbenes (NHCs). The NC, with the formula of Cu31(RS)25(NHC)3H6 (NHC = 1,4-bis(1-benzyl-1H-benzimidazol-1-ium-3-yl) butane, RS = 4-fluorothiophenol), was fully characterized by high resolution Fourier transform ion cyclotron resonance mass spectrum, nuclear magnetic resonance, ultra-violet visible spectroscopy, density functional theory (DFT) calculations and single-crystal X-ray crystallography. Structurally, the title cluster exhibits unprecedented Cu4 tetrahedron-based vertex-sharing (TBVS) superstructure (fusion of six Cu4 tetrahedra). Moreover, the ultrahigh thermal stability renders the cluster a model system to highlight the power of NHCs (even other carbenes) in controlling geometrical, electronic and surface structure of polyhydrido copper clusters.


Keywordsnanoparticlesclusterscopper

Free keywordsmetal clusters; copper-hydride; N-heterocylic carbene; stability; superatom


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Ministry reportingYes

Reporting Year2021

JUFO rating2


Last updated on 2024-26-03 at 09:19