skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Synthesis and Structure Determination of a New Au 20 Nanocluster Protected by Tripodal Tetraphosphine Ligands

Abstract

We report the synthesis and structure determination of a new Au 20 nanocluster coordinated by four tripodal tetraphosphine (PP 3) ligands {PP 3 = tris[2-(diphenylphosphino)ethyl]phosphine}. Single-crystal Xray crystallography and electrospray ionization mass spectrometry show that the cluster assembly can be formulated as [Au 20(PP 3) 4]Cl 4. The Au 20 cluster consists of an icosahedral Au 13 core and a seven-Au-atom partial outer shell arranged in a local C 3 symmetry. One PP 3 ligand coordinates to four Au atoms in the outer shell, while the other three PP 3 ligands coordinate to one Au atom from the outer shell and three Au atoms from the surface of the Au 13 core, giving rise to an overall chiral 16-electron Au cluster core with C3 symmetry.

Authors:
 [1];  [1];  [1];  [1]
  1. Brown Univ., Providence, RI (United States)
Publication Date:
Research Org.:
Pacific Northwest National Lab. (PNNL), Richland, WA (United States). Environmental Molecular Sciences Lab. (EMSL)
Sponsoring Org.:
USDOE
OSTI Identifier:
1227054
DOE Contract Number:  
AC05-76RL01830
Resource Type:
Journal Article
Journal Name:
Inorganic Chemistry
Additional Journal Information:
Journal Volume: 53; Journal Issue: 8; Journal ID: ISSN 0020-1669
Publisher:
American Chemical Society (ACS)
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Environmental Molecular Sciences Laboratory

Citation Formats

Chen, Jing, Zhang, Qianfan, Williard, Paul G., and Wang, Lai-Sheng. Synthesis and Structure Determination of a New Au20 Nanocluster Protected by Tripodal Tetraphosphine Ligands. United States: N. p., 2014. Web. doi:10.1021/ic500562r.
Chen, Jing, Zhang, Qianfan, Williard, Paul G., & Wang, Lai-Sheng. Synthesis and Structure Determination of a New Au20 Nanocluster Protected by Tripodal Tetraphosphine Ligands. United States. doi:10.1021/ic500562r.
Chen, Jing, Zhang, Qianfan, Williard, Paul G., and Wang, Lai-Sheng. Mon . "Synthesis and Structure Determination of a New Au20 Nanocluster Protected by Tripodal Tetraphosphine Ligands". United States. doi:10.1021/ic500562r.
@article{osti_1227054,
title = {Synthesis and Structure Determination of a New Au20 Nanocluster Protected by Tripodal Tetraphosphine Ligands},
author = {Chen, Jing and Zhang, Qianfan and Williard, Paul G. and Wang, Lai-Sheng},
abstractNote = {We report the synthesis and structure determination of a new Au20 nanocluster coordinated by four tripodal tetraphosphine (PP3) ligands {PP3 = tris[2-(diphenylphosphino)ethyl]phosphine}. Single-crystal Xray crystallography and electrospray ionization mass spectrometry show that the cluster assembly can be formulated as [Au20(PP3)4]Cl4. The Au20 cluster consists of an icosahedral Au13 core and a seven-Au-atom partial outer shell arranged in a local C3 symmetry. One PP3 ligand coordinates to four Au atoms in the outer shell, while the other three PP3 ligands coordinate to one Au atom from the outer shell and three Au atoms from the surface of the Au13 core, giving rise to an overall chiral 16-electron Au cluster core with C3 symmetry.},
doi = {10.1021/ic500562r},
journal = {Inorganic Chemistry},
issn = {0020-1669},
number = 8,
volume = 53,
place = {United States},
year = {2014},
month = {3}
}