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  4. Fast Molecular Compression by a Hyperthermal Collision Gives Bond-Selective Mechanochemistry
 
research article

Fast Molecular Compression by a Hyperthermal Collision Gives Bond-Selective Mechanochemistry

Krumbein, Lukas
•
Anggara, Kelvin
•
Stella, Martina
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February 1, 2021
Physical Review Letters

Using electrospray ion beam deposition, we collide the complex molecule Reichardt's dye (C41H30NO+) at low, hyperthermal translational energy (2-50 eV) with a Cu(100) surface and image the outcome at single-molecule level by scanning tunneling microscopy. We observe bond-selective reaction induced by the translational kinetic energy. The collision impulse compresses the molecule and bends specific bonds, prompting them to react selectively. This dynamics drives the system to seek thermally inaccessible reactive pathways, since the compression timescale (subpicosecond) is much shorter than the thermalization timescale (nanosecond), thereby yielding reaction products that are unobtainable thermally.

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Type
research article
DOI
10.1103/PhysRevLett.126.056001
Web of Science ID

WOS:000613524100004

Author(s)
Krumbein, Lukas
Anggara, Kelvin
Stella, Martina
Michnowicz, Tomasz
Ochner, Hannah
Abb, Sabine
Rinke, Gordon
Portz, Andre
Duerr, Michael
Baldwin, Andrew
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Date Issued

2021-02-01

Published in
Physical Review Letters
Volume

126

Issue

5

Article Number

056001

Subjects

Physics, Multidisciplinary

•

Physics

•

surface-induced dissociation

•

rotationally inelastic-collisions

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mode specificity

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energy

•

dynamics

•

ions

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chemisorption

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methane

•

fragmentation

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orientation

Editorial or Peer reviewed

REVIEWED

Written at

OTHER

EPFL units
LSEN  
Available on Infoscience
March 26, 2021
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/176806
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