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Enantioseparation of Au20(PP3)4Cl4 Clusters with Intrinsically Chiral Cores

Au(PP)Cl (PP=tris(2‐(diphenylphosphino)ethyl) phosphine), abbreviated as Au, is the only Au nanocluster with an intrinsically chiral core without a chiral environment (chiral ligands or Au‐thiolate staples), making it a unique object to understand chiral evolution and explore chiral applications. Un... Full description

Journal Title: Angewandte Chemie International Edition 16 July 2018, Vol.57(29), pp.9059-9063
Main Author: Zhu, Yanfei
Other Authors: Wang, Hui , Wan, Kaiwei , Guo, Jun , He, Chunting , Yu, Yue , Zhao, Luyang , Zhang, Yin , Lv, Jiawei , Shi, Lin , Jin, Renxi , Zhang, Xinxiang , Shi, Xinghua , Tang, Zhiyong
Format: Electronic Article Electronic Article
Language: English
Subjects:
ID: ISSN: 1433-7851 ; E-ISSN: 1521-3773 ; DOI: 10.1002/anie.201805695
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recordid: wj10.1002/anie.201805695
title: Enantioseparation of Au20(PP3)4Cl4 Clusters with Intrinsically Chiral Cores
format: Article
creator:
  • Zhu, Yanfei
  • Wang, Hui
  • Wan, Kaiwei
  • Guo, Jun
  • He, Chunting
  • Yu, Yue
  • Zhao, Luyang
  • Zhang, Yin
  • Lv, Jiawei
  • Shi, Lin
  • Jin, Renxi
  • Zhang, Xinxiang
  • Shi, Xinghua
  • Tang, Zhiyong
subjects:
  • Chirality
  • Cyclodextrins
  • Gold
  • Nanoclusters
  • Supramolecular Chemistry
ispartof: Angewandte Chemie International Edition, 16 July 2018, Vol.57(29), pp.9059-9063
description: Au(PP)Cl (PP=tris(2‐(diphenylphosphino)ethyl) phosphine), abbreviated as Au, is the only Au nanocluster with an intrinsically chiral core without a chiral environment (chiral ligands or Au‐thiolate staples), making it a unique object to understand chiral evolution and explore chiral applications. Unfortunately, the synthesized Au is racemic, and its enantiomers have not yet been separated. Herein, we report a supramolecular assembly strategy with α‐cyclodextrin (α‐CD) to afford enantiopure Au in bulk, and an enantiomer excess () value of as‐separated Au of 97 %. As a result of its high purity, the distinctive optical activity of Au, which originates from electronic transitions confined in chiral cores, is fully explored. Theoretical studies reveals that the enantioseparation results from the preferential self‐assembly of α‐CD with organic ligands on the surface of right‐handed Au. : Au nanoclusters which have intrinsically chiral cores are separated into their enantiomers for the first time by exploiting a supramolecular assembly strategy using α‐cyclodextrin. The distinctive optical activity of the Au enantiomers, which originates from electronic transitions confined in the chiral core, could then be fully explored.
language: eng
source:
identifier: ISSN: 1433-7851 ; E-ISSN: 1521-3773 ; DOI: 10.1002/anie.201805695
fulltext: fulltext
issn:
  • 1433-7851
  • 14337851
  • 1521-3773
  • 15213773
url: Link


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titleEnantioseparation of Au20(PP3)4Cl4 Clusters with Intrinsically Chiral Cores
creatorZhu, Yanfei ; Wang, Hui ; Wan, Kaiwei ; Guo, Jun ; He, Chunting ; Yu, Yue ; Zhao, Luyang ; Zhang, Yin ; Lv, Jiawei ; Shi, Lin ; Jin, Renxi ; Zhang, Xinxiang ; Shi, Xinghua ; Tang, Zhiyong
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subjectChirality ; Cyclodextrins ; Gold ; Nanoclusters ; Supramolecular Chemistry
descriptionAu(PP)Cl (PP=tris(2‐(diphenylphosphino)ethyl) phosphine), abbreviated as Au, is the only Au nanocluster with an intrinsically chiral core without a chiral environment (chiral ligands or Au‐thiolate staples), making it a unique object to understand chiral evolution and explore chiral applications. Unfortunately, the synthesized Au is racemic, and its enantiomers have not yet been separated. Herein, we report a supramolecular assembly strategy with α‐cyclodextrin (α‐CD) to afford enantiopure Au in bulk, and an enantiomer excess () value of as‐separated Au of 97 %. As a result of its high purity, the distinctive optical activity of Au, which originates from electronic transitions confined in chiral cores, is fully explored. Theoretical studies reveals that the enantioseparation results from the preferential self‐assembly of α‐CD with organic ligands on the surface of right‐handed Au. : Au nanoclusters which have intrinsically chiral cores are separated into their enantiomers for the first time by exploiting a supramolecular assembly strategy using α‐cyclodextrin. The distinctive optical activity of the Au enantiomers, which originates from electronic transitions confined in the chiral core, could then be fully explored.
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titleEnantioseparation of Au20(PP3)4Cl4 Clusters with Intrinsically Chiral Cores
descriptionAu(PP)Cl (PP=tris(2‐(diphenylphosphino)ethyl) phosphine), abbreviated as Au, is the only Au nanocluster with an intrinsically chiral core without a chiral environment (chiral ligands or Au‐thiolate staples), making it a unique object to understand chiral evolution and explore chiral applications. Unfortunately, the synthesized Au is racemic, and its enantiomers have not yet been separated. Herein, we report a supramolecular assembly strategy with α‐cyclodextrin (α‐CD) to afford enantiopure Au in bulk, and an enantiomer excess () value of as‐separated Au of 97 %. As a result of its high purity, the distinctive optical activity of Au, which originates from electronic transitions confined in chiral cores, is fully explored. Theoretical studies reveals that the enantioseparation results from the preferential self‐assembly of α‐CD with organic ligands on the surface of right‐handed Au. : Au nanoclusters which have intrinsically chiral cores are separated into their enantiomers for the first time by exploiting a supramolecular assembly strategy using α‐cyclodextrin. The distinctive optical activity of the Au enantiomers, which originates from electronic transitions confined in the chiral core, could then be fully explored.
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authorZhu, Yanfei ; Wang, Hui ; Wan, Kaiwei ; Guo, Jun ; He, Chunting ; Yu, Yue ; Zhao, Luyang ; Zhang, Yin ; Lv, Jiawei ; Shi, Lin ; Jin, Renxi ; Zhang, Xinxiang ; Shi, Xinghua ; Tang, Zhiyong
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abstractAu(PP)Cl (PP=tris(2‐(diphenylphosphino)ethyl) phosphine), abbreviated as Au, is the only Au nanocluster with an intrinsically chiral core without a chiral environment (chiral ligands or Au‐thiolate staples), making it a unique object to understand chiral evolution and explore chiral applications. Unfortunately, the synthesized Au is racemic, and its enantiomers have not yet been separated. Herein, we report a supramolecular assembly strategy with α‐cyclodextrin (α‐CD) to afford enantiopure Au in bulk, and an enantiomer excess () value of as‐separated Au of 97 %. As a result of its high purity, the distinctive optical activity of Au, which originates from electronic transitions confined in chiral cores, is fully explored. Theoretical studies reveals that the enantioseparation results from the preferential self‐assembly of α‐CD with organic ligands on the surface of right‐handed Au. : Au nanoclusters which have intrinsically chiral cores are separated into their enantiomers for the first time by exploiting a supramolecular assembly strategy using α‐cyclodextrin. The distinctive optical activity of the Au enantiomers, which originates from electronic transitions confined in the chiral core, could then be fully explored.
doi10.1002/anie.201805695
orcididhttp://orcid.org/0000-0003-0610-0064
pages9059-9063
date2018-07-16