Intermolecular contrast in atomic force microscopy images without intermolecular bonds.

@article{Hmlinen2014IntermolecularCI,
  title={Intermolecular contrast in atomic force microscopy images without intermolecular bonds.},
  author={Sampsa K. H{\"a}m{\"a}l{\"a}inen and Nadine J. van der Heijden and Joost van der Lit and Stephan den Hartog and Peter Liljeroth and Ingmar Swart},
  journal={Physical review letters},
  year={2014},
  volume={113 18},
  pages={
          186102
        }
}
Intermolecular features in atomic force microscopy images of organic molecules have been ascribed to intermolecular bonds. A recent theoretical study [P. Hapala et al., Phys. Rev. B 90, 085421 (2014)] showed that these features can also be explained by the flexibility of molecule-terminated tips. We probe this effect by carrying out atomic force microscopy experiments on a model system that contains regions where intermolecular bonds should and should not exist between close-by molecules… Expand

Figures and Topics from this paper

Repulsive tip tilting as the dominant mechanism for hydrogen bond-like features in atomic force microscopy imaging
Experimental atomic force microscopy(AFM) studies have reported distinct features in regions with little electron density for various organic systems. These unexpected features have been proposed toExpand
Origin of the Contrast Interpreted as Intermolecular and Intramolecular Bonds in Atomic Force Microscopy Images
The origin of the contrast in noncontact atomic force microscopy (NC-AFM) images, which is interpreted as intramolecular and intermolecular bonds, is still under debate. On the basis of the ab initioExpand
Atomic-Scale Contrast Formation in AFM Images on Molecular Systems
Imaging individual molecules with atomic resolution is now possible using non-contact atomic force microscopy (AFM). In all cases where atomic resolution imaging of molecules was demonstrated,Expand
Quantitative assessment of intermolecular interactions by atomic force microscopy imaging using copper oxide tips
TLDR
It is shown that, due to the covalently bound configuration of the terminal oxygen atom, this copper oxide tip (CuOx tip) has a high structural stability, allowing not only a quantitative determination of individual bond lengths and access to bond order effects, but also reliable intermolecular bond characterization. Expand
Chemical structure imaging of a single molecule by atomic force microscopy at room temperature
TLDR
It is demonstrated that the chemical structure of a single molecule can be clearly revealed even at room temperature and the submolecular contrast over a central part of the molecule is achieved in the repulsive regime due to differences in the attractive van der Waals interaction and the Pauli repulsive interaction between different sites of the molecules. Expand
Characteristic Contrast in Δfmin Maps of Organic Molecules Using Atomic Force Microscopy.
TLDR
It is shown that maps of the minima of frequency shift-distance curves extracted from 3D data cubes contain characteristic contrast, and a detailed theoretical analysis shows that these features are characteristic for the investigated species. Expand
Direct quantitative measurement of the C═O⋅⋅⋅H–C bond by atomic force microscopy
TLDR
The direct measurement of the interaction with a hydrogen atom paves the way for the identification of three-dimensional molecules such as DNAs and polymers, building the capabilities of AFM toward quantitative probing of local chemical reactivity. Expand
Indications of chemical bond contrast in AFM images of a hydrogen-terminated silicon surface
TLDR
The role of the tip flexibility and the nature of bonds and false bond-like features are discussed, and a density functional tight-binding-based method is used to simulate atomic force microscopy images. Expand
Elemental Identification by Combining Atomic Force Microscopy and Kelvin Probe Force Microscopy
TLDR
This work investigates elemental contrast by carrying out both nc-AFM and Kelvin probe force microscopy experiments on epitaxial monolayer hexagonal boron nitride (hBN) on Ir(111) geometry, which yields detailed information on the origin of the atomic-scale contrast. Expand
Molecular Identification, Bond Order Discrimination, and Apparent Intermolecular Features in Atomic Force Microscopy Studied with a Charge Density Based Method.
TLDR
An efficient method to simulate high-resolution atomic force microscopy images with CO probes is introduced and the controversy regarding the origin of the intermolecular features is settled, discarding the effect of the charge redistribution associated with the H bonds and linking them with the overlap of the wave functions of the atoms that constitute the bond. Expand
...
1
2
3
4
5
...

References

SHOWING 1-10 OF 30 REFERENCES
Image distortions of a partially fluorinated hydrocarbon molecule in atomic force microscopy with carbon monoxide terminated tips.
TLDR
The underlying mechanisms of image distortions in atomic force microscopy (AFM) with CO-terminated tips are identified and studied in detail and a significant sharpening of the molecule bonds in AFM imaging is caused. Expand
JR 旅客販売総合システム(マルス)における運用及び管理について
TLDR
A dictionary definition of divisible number: a number is divisible by a number so that every digit of that number isdivisible by 3. Expand
APPL
Statistical packages have been used for decades to analyze large datasets or to perform mathematically intractable statistical methods. These packages are not capable of working with random variablesExpand
Phys
  • Rev. B 90, 085421
  • 2014
ACS Nano 8
  • 3006
  • 2014
Nat
  • Commun. 5, 3931
  • 2014
Nano Lett
  • ASAP article
  • 2014
Phys
  • Rev. B 89, 205407
  • 2014
Phys
  • Rev. Lett. 112, 166102
  • 2014
Science 343
  • 1120
  • 2014
...
1
2
3
...