Mode‐Selective Electrical Excitation of a Molecular Rotor

Tierney, Heather L.; Baber, Ashleigh E.; Jewell, April D.; Iski, Erin V.; Boucher, Matthew B.; Sykes, E. Charles H.

doi:10.1002/chem.200902025

Cited by 33 publications

(54 citation statements)

References 32 publications

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“…To date, the reported action spectra can be classified into four types according to their spectral shapes: single-mode excitation [8][9][10][11][12][13][14], multiple-mode excitation [4,[15][16][17][18][19][20][21], combination-mode excitation [19,21,22], and single-overtonemodeexcitation [12], as shownin Figs. 1(a)-1(d), respectively.…”

mentioning

confidence: 99%

Lateral Hopping of CO on Ag(110) by Multiple Overtone Excitation

Lim

Arafune

et al. 2016

Phys. Rev. Lett.

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A novel type of action spectrum representing multiple overtone excitations of the vðM-CÞ mode was observed for lateral hopping of a CO molecule on Ag(110) induced by inelastically tunneled electrons from the tip of a scanning tunneling microscope. The yield of CO hopping shows sharp increases at 261 AE 4 mV, corresponding to the C-O internal stretching mode, and at 61 AE 2, 90 AE 2, and 148 AE 7 mV, even in the absence of corresponding fundamental vibrational modes. The mechanism of lateral CO hopping on Ag (110) was explained by the multistep excitation of overtone modes of vðM-CÞ based on the numerical fitting of the action spectra, the nonlinear dependence of the hopping rate on the tunneling current, and the hopping barrier obtained from thermal diffusion experiments.

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confidence: 99%

Lateral Hopping of CO on Ag(110) by Multiple Overtone Excitation

Lim

Arafune

et al. 2016

Phys. Rev. Lett.

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“…38 When to a static dibutyl sulfide molecule at 7 K a pulse of 0.7 V tunnelling electrons was delivered by the STM tip, it started to rotate. 38 When to a static dibutyl sulfide molecule at 7 K a pulse of 0.7 V tunnelling electrons was delivered by the STM tip, it started to rotate.…”

Section: Rotational Motionmentioning

confidence: 99%

Artificial molecular rotors and motors on surfaces: STM reveals and triggers

Lensen

Elemans

2012

Soft Matter

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Single molecule rotors and motors are foreseen to be important elements of future working nanoscale devices. We here report recent advances in revealing the structure, motion, and manipulation of such rotors and motors at a surface with the help of Scanning Tunneling Microscopy (STM).Inspired by the biomolecular motors that can be found everywhere in nature and are essential to numerous processes of life, nanoscientists have been developing artificial molecular rotors and motors with the ultimate aim to include them into bottom-up constructed working devices. Once mounted onto a surface, scanning tunnelling microscopy (STM) is a powerful technique to characterise these rotor and motor molecules, since it allows their direct visualisation at submolecular resolution. It can furthermore track translational motion in real-time, and rotational motion even at the millisecond level by performing tunnelling current-time spectroscopy. Finally, the STM can be a useful tool to power molecular rotors and motors, by injecting tunnelling electrons of sufficient energy into the molecules via the STM tip. This review addresses recent advances in revealing the structure, motion, and manipulation of molecular rotors and motors on a surface by STM.

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“…As previously mentioned, temperature is a key factor for controlling the molecular motion, and many research groups have reported STM studies of temperature effects. For example, an isolated thioether anchored onto Au(111) rotated and was observed as a round feature at temperatures of 20–78 K [54,55,56]. At 7 K the molecular vibration was almost frozen and this feature appeared enlongated.…”

Section: Molecular Rotations In Arraysmentioning

confidence: 99%

Molecular Dynamics in Two-Dimensional Supramolecular Systems Observed by STM

Uemura

Tanoue

Yilmaz³

et al. 2010

Materials

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Since the invention of scanning tunneling microscopy (STM), 2D supramolecular architectures have been observed under various experimental conditions. The construction of these architectures arises from the balance between interactions at the medium-solid interface. This review summarizes molecular motion observed in 2D-supramolecular structures on surfaces using nanospace resolution STM. The observation of molecular motion on surfaces provides a visual understanding of intermolecular interactions, which are the major driving force behind supramolecular arrangement.

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Mode‐Selective Electrical Excitation of a Molecular Rotor

Cited by 33 publications

References 32 publications

Lateral Hopping of CO on Ag(110) by Multiple Overtone Excitation

Lateral Hopping of CO on Ag(110) by Multiple Overtone Excitation

Artificial molecular rotors and motors on surfaces: STM reveals and triggers

Molecular Dynamics in Two-Dimensional Supramolecular Systems Observed by STM

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