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research article

Three-Dimensional Structure Determination of Surface Sites

Berruyer, Pierrick
•
Lelli, Moreno
•
Conley, Matthew P.
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2017
Journal Of The American Chemical Society

The spatial arrangement of atoms is directly linked to chemical function. A fundamental challenge in surface chemistry and catalysis relates to the determination of three-dimensional structures with atomic-level precision. Here we determine the three-dimensional structure of an organometallic complex on an amorphous silica surface using solid-state NMR measurements, enabled through a dynamic nuclear polarization surface enhanced NMR spectroscopy approach that induces a 200-fold increase in the NMR sensitivity for the surface species. The result, in combination with EXAFS, is a detailed structure for the surface complex determined with a precision of 0.7 angstrom. We observe a single well-defined conformation that is folded toward the surface in such a way as to include an interaction between the platinum metal center and the surface oxygen atoms.

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Type
research article
DOI
10.1021/jacs.6b10894
Web of Science ID

WOS:000392459300045

Author(s)
Berruyer, Pierrick
Lelli, Moreno
Conley, Matthew P.
Silverio, Daniel L.
Widdifield, Cory M.
Siddiqi, Georges
Gajan, David
Lesage, Anne
Coperet, Christophe
Emsley, Lyndon  
Date Issued

2017

Publisher

American Chemical Society

Published in
Journal Of The American Chemical Society
Volume

139

Issue

2

Start page

849

End page

855

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LRM  
Available on Infoscience
March 27, 2017
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/135943
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