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Oscillations in the Stability of Consecutive Chemical Bonds Revealed by Ion‐Induced Desorption
Author(s) -
Ossowski Jakub,
Rysz Jakub,
Krawiec Mariusz,
Maciazek Dawid,
Postawa Zbigniew,
Terfort Andreas,
Cyganik Piotr
Publication year - 2015
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201406053
Subject(s) - chemical physics , molecule , chemistry , monolayer , chemical bond , computational chemistry , molecular dynamics , polyatomic ion , chemical stability , desorption , ion , adsorption , crystallography , organic chemistry , biochemistry
While it is a common concept in chemistry that strengthening of one bond results in weakening of the adjacent ones, no results have been published on if and how this effect protrudes further into the molecular backbone. By binding molecules to a surface in the form of a self‐assembled monolayer, the strength of a primary bond can be selectively altered. Herein, we report that by using secondary‐ion mass spectrometry, we are able to detect for the first time positional oscillations in the stability of consecutive bonds along the adsorbed molecule, with the amplitudes diminishing with increasing distance from the molecule–metal interface. To explain these observations, we have performed molecular dynamics simulations and DFT calculations. These show that the oscillation effects in chemical‐bond stability have a very general nature and break the translational symmetry in molecules.