A1 Journal article (refereed)
Tertiary Chiral Nanostructures from C‐H∙∙∙F Directed Assembly of Chiroptical Superatoms (2021)

Shen, H., Xu, Z., Wang, L., Han, Y.-Z., Liu, X., Malola, S., Teo, B. K., Häkkinen, H., & Zheng, N. (2021). Tertiary Chiral Nanostructures from C‐H∙∙∙F Directed Assembly of Chiroptical Superatoms. Angewandte Chemie, 60(41), 22411-22416. https://doi.org/10.1002/anie.202108141

JYU authors or editors

Publication details

All authors or editors: Shen, Hui; Xu, Zhen; Wang, Lingzheng; Han, Ying-Zi; Liu, Xianhu; Malola, Sami; Teo, Boon K.; Häkkinen, Hannu; Zheng, Nanfeng

Journal or series: Angewandte Chemie

ISSN: 1433-7851

eISSN: 1521-3773

Publication year: 2021

Publication date: 04/08/2021

Volume: 60

Issue number: 41

Pages range: 22411-22416

Publisher: Wiley

Publication country: Germany

Publication language: English

DOI: https://doi.org/10.1002/anie.202108141

Publication open access: Not open

Publication channel open access:

Publication is parallel published (JYX): https://jyx.jyu.fi/handle/123456789/77310

Abstract

Chiral hierarchical structures are universal in nature, whereas quite challenging to mimic in man-made synthesis. We report herein the synthesis and structure of tertiary chiral nanostructures with 100% optical purity. A novel synthetic strategy, using chiral reducing agent, R and S -BINAPCuBH 4 (BINAP is 2,2'-Bis(diphenylphosphino)-1,1'-binaphthyl), is developed to access to atomically precise, intrinsically chiral [Au 7 Ag 6 Cu 2 ( R - or S -BINAP) 3 (SCH 2 Ph) 6 ]SbF 6 nanoclusters in one-pot synthesis. The clusters represent the first tri-metallic superatoms with inherent chirality and fair stability. Both metal distribution (primary) and ligand arrangement (secondary) of the enantiomers exhibited perfect mirror images, and unprecedentedly, the self-assembly driven by the C-H∙∙∙F interaction between the phenyl groups of the superatom moieties and SbF 6 - anions induced the formation of bio-mimic left- and right- handed helices, achieving the tertiary chiral nanostructures. Density functional theory calculations revealed the connections between the molecular details and chiral optical activity.

Keywords: nanostructures; hydrogen bonds; chemical bonds

Free keywords: chirality; self-assembly; cluster combounds; hydrogen bonds; hierarchical nanostructures

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Ministry reporting: Yes

Reporting Year: 2021

JUFO rating: 3