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author:

Lei, Z. (Lei, Z..) [1] (Scholars:雷振) | Zhao, P. (Zhao, P..) [2] | Guan, Z.-J. (Guan, Z.-J..) [3] | Nan, Z.-A. (Nan, Z.-A..) [4] | Ehara, M. (Ehara, M..) [5] | Wang, Q.-M. (Wang, Q.-M..) [6]

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Scopus

Abstract:

A ‘passivated precursor’ approach is developed for the efficient synthesis and isolation of all-alkynyl-protected gold nanoclusters. Direct reduction of dpa-passivated precursor Au-dpa (Hdpa=2,2’-dipyridylamine) in one-pot under ambient conditions gives a series of clusters including Au22(C≡CR)18 (R=−C6H4−2−F), Au36(C≡CR)24, Au44(C≡CR)28, Au130(C≡CR)50, and Au144(C≡CR)60. These clusters can be well separated via column chromatography. The overall isolation yield of this series of clusters is 40 % (based on gold), which is much improved in comparison with previous approaches. It is notable that the molecular structure of the giant cluster Au130(C≡CR)50 is revealed, which presents important information for understanding the structure of the mysterious Au130 nanoclusters. Theoretical calculations indicated Au130(C≡CR)50 has a smaller HOMO-LUMO gap than Au130(S−C6H4−4−CH3)50. This facile and reliable synthetic approach will greatly accelerate further studies on all-alkynyl-protected gold nanoclusters. © 2024 Wiley-VCH GmbH.

Keyword:

Alkynyl ligands Cluster compounds Gold Silica gel column chromatography Structure determination

Community:

  • [ 1 ] [Lei Z.]Department of Chemistry, Tsinghua University, Beijing, 100084, China
  • [ 2 ] [Lei Z.]Fujian Provincial Key Laboratory of Advanced Inorganic Oxygenated Materials, College of Chemistry, Fuzhou University, Fuzhou, 350108, China
  • [ 3 ] [Zhao P.]Research Center for Computational Science, Institute for Molecular Science, Myodaiji, Okazaki, Aichi, 444-8585, Japan
  • [ 4 ] [Guan Z.-J.]Department of Chemistry, Tsinghua University, Beijing, 100084, China
  • [ 5 ] [Nan Z.-A.]Department of Chemistry, Tsinghua University, Beijing, 100084, China
  • [ 6 ] [Ehara M.]Research Center for Computational Science, Institute for Molecular Science, Myodaiji, Okazaki, Aichi, 444-8585, Japan
  • [ 7 ] [Wang Q.-M.]Department of Chemistry, Tsinghua University, Beijing, 100084, China

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Source :

Chemistry - A European Journal

ISSN: 0947-6539

Year: 2024

Issue: 42

Volume: 30

3 . 9 0 0

JCR@2023

CAS Journal Grade:3

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 1

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