Rotational Spectromicroscopy: Imaging the Orbital Interaction between Molecular Hydrogen and an Adsorbed Molecule

Li, Shaowei; Yuan, Dingwang; Yu, Arthur; Czap, Gregory; Wu, Ruqian; Ho, W.

doi:10.1103/physrevlett.114.206101

Cited by 29 publications

(29 citation statements)

References 34 publications

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“…The STM has been shown to be an ideal tool to induce and detect surface reactions with sub-molecular precision [1], to break and form individual bonds [2,3]. Experiments with the STM have significantly enriched our understanding of the material composition [4,5], molecular organization [6,7], intra-and inter-molecular coupling [8,9], and molecular structure [10]. Furthermore, the coupling of photon excitation with electron tunneling in the STM junction unites the advantages of optical measurements with the Ångström resolution of tunneling electrons, enabling the studies of photo-induced chemical processes such as single electron transfer [11,12] and nuclear motions of single molecules [13][14][15] at the atomic scale.…”

mentioning

confidence: 99%

Bond-Selected Photodissociation of Single Molecules Adsorbed on Metal Surfaces

Czap

Wang

et al. 2019

Phys. Rev. Lett.

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We report the photo-assisted activation of selected C-H bonds in individual molecules adsorbed on metal surfaces within the junction of a scanning tunneling microscope. Photons can couple to the C-H bond activation of specific hydrocarbons through a resonant photo-assisted tunneling process. The molecule to be activated can be selected by positioning the tip with sub-Ångström resolution. Furthermore, structural tomography of the molecule and its dissociation products are imaged at different heights by the inelastic tunneling probe. The demonstration of single bond dissociation induced by resonant photo-assisted tunneling electrons implies the attainment of atomic scale spatial resolution for bond-selected photochemistry.

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confidence: 99%

Bond-Selected Photodissociation of Single Molecules Adsorbed on Metal Surfaces

Czap

Wang

et al. 2019

Phys. Rev. Lett.

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“…Additionally, the rotational motion of H 2 is keen to its chemical environment [64]. The spatial variation of rotational intensity reflects orbital hybridization between H 2 and magnesium porphyrin (MgP), which shed new insights into intermolecular interaction [24,88].…”

Section: Rotational Spectroscopymentioning

confidence: 99%

“…mechanical controllable break junction [27,28], electromigration junction [29], STM break junction [30] and so on. At the same time, STM-IETS has been extensively used in the fields of surface science to study the chemical reactions on surfaces [14][15][16][17], molecular identifications [18,19], electron-phonon coupling [20][21][22], intra-and inter-molecular interaction [23][24][25][26]. In addition to molecular vibration, inelastic tunneling electrons can couple to other elementary excitations, such as rotation, phonon, spin, plasmon, photon, etc., which greatly expand the scope of the IETSrelated techniques.…”

Section: Introduction Of Iets and Stm-ietsmentioning

confidence: 99%

Recent advances in inelastic electron tunneling spectroscopy

You

Lü

Guo

et al. 2017

Advances in Physics: X

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Inelastic electron tunneling spectroscopy (IETS) based on scanning tunneling microscopy (STM) opens a new avenue for vibrational spectroscopy at single bond level. Since its birth, STM-IETS has been widely used for chemical identification and investigating the intra-and inter-molecular interactions as well as chemical reactions. In this review, we mainly focus on the new development and application of STM-IETS in the past decade. After introducing the basic theoretical background of IETS, we will discuss the recent advances of STM-IETS as vibrational spectroscopy and microspectroscopy, with emphasis on the ability of probing weak intermolecular interactions. The coupling of inelastic tunneling electrons to other elementary excitations, such as rotation, phonon, spin, plasmon, photon, etc., will be also briefly reviewed. In the end, we present a perspective for the future directions and challenges of STM-IETS. The goal of this review is to demonstrate the versatility of STM-IETS and inspire new applications in interdisciplinary fields.

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“…Recent developments have added further capabilities and pushed the resolution of spectroscopic techniques even further. For instance, STM has been employed in imaging with sub-molecular spatial resolution [3][4][5][6] (including specific vibrational mode imaging 7 , bond-selective chemistry 8 , and spatial distribution of additional charges on molecules 9 ), while AFM was utilized to study single-electron transfer between molecules 10 , and to resolve intra-molecular structures 11 .…”

Section: Introductionmentioning

confidence: 99%

Local-noise spectroscopy for nonequilibrium systems

2018

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We introduce the notion, and develop the theory of local-noise spectroscopy (LNS)-a tool to study the properties of systems far from equilibrium by means of flux density correlations. As a test bed, we apply it to biased molecular junctions. This tool naturally extends those based on local fluxes, while providing complementary information on the system. As examples of the rich phenomenology that one can study with this approach, we show that LNS can be used to yield information on microscopic properties of bias-induced light emission in junctions, provide local resolution of intrasystem interactions, and employed as a nano-thermometry tool. Although LNS may, at the moment, be difficult to realize experimentally, it can nonetheless be used as a powerful theoretical tool to infer a wide range of physical properties on a variety of systems of present interest.

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Rotational Spectromicroscopy: Imaging the Orbital Interaction between Molecular Hydrogen and an Adsorbed Molecule

Cited by 29 publications

References 34 publications

Bond-Selected Photodissociation of Single Molecules Adsorbed on Metal Surfaces

Bond-Selected Photodissociation of Single Molecules Adsorbed on Metal Surfaces

Recent advances in inelastic electron tunneling spectroscopy

Local-noise spectroscopy for nonequilibrium systems

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