English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
  Imaging covalent bond formation by H atom scattering from graphene.

Jiang, H., Kammler, M., Ding, F., Dorenkamp, Y., Manby, F. R., Wodtke, A. M., et al. (2019). Imaging covalent bond formation by H atom scattering from graphene. Science, 364(6438), 379-382. doi:10.1126/science.aaw6378.

Item is

Files

show Files
hide Files
:
3052481.pdf (Publisher version), 573KB
 
File Permalink:
-
Name:
3052481.pdf
Description:
-
OA-Status:
Visibility:
Restricted ( Max Planck Society (every institute); )
MIME-Type / Checksum:
application/pdf
Technical Metadata:
Copyright Date:
-
Copyright Info:
-
License:
-

Locators

show

Creators

show
hide
 Creators:
Jiang, H.1, Author           
Kammler, M.1, Author           
Ding, F., Author
Dorenkamp, Y.1, Author           
Manby, F. R., Author
Wodtke, A. M.1, Author           
Miller, T. F., Author
Kandratsenka, A.1, Author           
Bünermann, O., Author
Affiliations:
1Department of Dynamics at Surfaces, MPI for Biophysical Chemistry, Max Planck Society, ou_578600              

Content

show
hide
Free keywords: -
 Abstract: Viewing the atomic-scale motion and energy dissipation pathways involved in forming a covalent bond is a longstanding challenge for chemistry. We performed scattering experiments of H atoms from graphene and observed a bimodal translational energy loss distribution. Using accurate first-principles dynamics simulations, we show that the quasi-elastic channel involves scattering through the physisorption well where collision sites are near the centers of the six-membered C-rings. The second channel results from transient C-H bond formation, where H atoms lose 1 to 2 electron volts of energy within a 10-femtosecond interaction time. This remarkably rapid form of intramolecular vibrational relaxation results from the C atom's rehybridization during bond formation and is responsible for an unexpectedly high sticking probability of H on graphene.

Details

show
hide
Language(s): eng - English
 Dates: 2019-04-26
 Publication Status: Published online
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1126/science.aaw6378
 Degree: -

Event

show

Legal Case

show

Project information

show

Source 1

show
hide
Title: Science
Source Genre: Journal
 Creator(s):
Affiliations:
Publ. Info: -
Pages: - Volume / Issue: 364 (6438) Sequence Number: - Start / End Page: 379 - 382 Identifier: -