Intermolecular Forces Revealed by Raman Scattering

Srivastava, Rajendra P.; Zaidi, H. R.

doi:10.1007/978-3-642-81279-8_5

Cited by 9 publications

(5 citation statements)

References 168 publications

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“…Traditional Raman spectroscopy is well documented to show sensitivity to molecule identity, chemical environments, and intermolecular forces. 205 Meanwhile, the surface selection rules found in enhanced Raman techniques such as SERS and TERS result in the orientation characterization of molecules adsorbed on the surface. 206 When taken together with the spatial resolution of a technique such as TERS, it becomes possible to identify adjacent molecules on a surface, probe adsorption configurations, characterize molecule-substrate and intermolecular interactions, and even differentiate and define between adjacent molecules that adopt different adsorption configurations on a surface.…”

Section: Molecule-substrate Interactionsmentioning

confidence: 99%

The Expanding Frontiers of Tip-Enhanced Raman Spectroscopy

Schultz

Mahapatra

et al. 2020

Appl Spectrosc

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Section: Molecule-substrate Interactionsmentioning

confidence: 99%

The Expanding Frontiers of Tip-Enhanced Raman Spectroscopy

Schultz

Mahapatra

et al. 2020

Appl Spectrosc

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“…TERS takes this chemical information aspect of Raman spectroscopy to the spatial limit, allowing the differentiation of individual adjacent molecules on a surface with sub-nanometer resolution [16], including individual DNA bases in coupled base pairs [90]. Significantly, these vibrational fingerprints are also affected by local chemical effects [91]. With nanoscale spatial resolution, TERS allows the characterization of binding configurations [92][93][94][95][96], intermolecular interactions [97], and molecule-substrate interactions [98,99] for individual molecules as well as self-assembled nanostructures.…”

Section: Nanoscale Vibrational Fingerprint Analysis Via Raman Spectro...mentioning

confidence: 99%

Optical scanning tunneling microscopy based chemical imaging and spectroscopy

Schultz

Jiang

et al. 2020

J. Phys.: Condens. Matter

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Through coupling optical processes with the scanning tunneling microscope (STM), single-molecule chemistry and physics have been investigated at the ultimate spatial and temporal limit. Electrons and photons can be used to drive interactions and reactions in chemical systems and simultaneously probe their characteristics and consequences. In this review we introduce and review methods to couple optical imaging and spectroscopy with scanning tunneling microscopy. The integration of the STM and optical spectroscopy provides new insights into individual molecular adsorbates, surface-supported molecular assemblies, and two-dimensional materials with subnanoscale resolution, enabling the fundamental study of chemistry at the spatial and temporal limit. The inelastic scattering of photons by molecules and materials, that results in unique and sensitive vibrational fingerprints, will be considered with tip-enhanced Raman spectroscopy. STM-induced luminescence examines the intrinsic luminescence of organic adsorbates and their energy transfer and charge transfer processes with their surroundings. We also provide a survey of recent efforts to probe the dynamics of optical excitation at the molecular level with scanning tunneling microscopy in the context of light-induced photophysical and photochemical transformations.

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“…This problem of line shape parameters has been studied by many authors, and an exhaustive review of all theories is hard to give. Only methods based on the fundamental Anderson-Tsao-Curnutte (ATC) [1,2] and Fano [3,4] theories are briefly discussed in this chapter.…”

Section: Semi-classical Calculation Of Pressure-broadened Line Widthsmentioning

confidence: 99%

“…Further development is based on the concept of the Liouville operator L which allows finding a formal solution for the spectral distribution function without detailed information on the system and the bath. A general description of this formalism can be found in the original work of Fano [3] as well as in the review by Srivastava and Zaidi [4]. Only the main properties of this operator are briefly recalled here.…”

Section: Spectral Functionmentioning

confidence: 99%

Semi-classical calculation of pressure-broadened line widths and pressure-induced line shifts

Buldyreva¹,

Lavrentieva²,

Starikov³

2010

Collisional Line Broadening and Shifting of Atmospheric Gases

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The averaged energy of Eq. (2.1.3) should be further summed over all final and averaged over all initial molecular states. For molecular transitions the initial state i and the final state f are degenerate over the magnetic quantum numbers m i and m f of the angular momentum operators i J and f J of the active molecule, so that additional averaging should be made over these magnetic quantum numbers (and those associated with the virtual states of the perturbing molecule). This removal of degeneracy on the magnetic quantum numbers constitutes an intrinsic Collisional Line Broadening and Shifting of Atmospheric Gases Downloaded from www.worldscientific.com by KAINAN UNIVERSITY on 12/27/14. For personal use only. Semi-classical calculation of pressure-broadened line widths b l of its translational motion relative to the active molecule: b b l J l + = . The vectors |Jm〉 and |lm 2 〉 are eigenvectors of the Hamiltonians H a and H b respectively. Collisional Line Broadening and Shifting of Atmospheric Gases Downloaded from www.worldscientific.com by KAINAN UNIVERSITY on 12/27/14. For personal use only. l J K + = having the projection M on the space-fixed z-axis. In the vector coupling scheme (see, e.g., Ref. [7]), the vectors f i J J J − = and the vectors f i l l l − = are set to zero for all bath molecules (the vectors b l are separated and treated classically), so that f i J J K − = , where i J and f J are the angular momenta for the initial and the final states of the active molecule. The selection rules for the projection M depend on the operator X (l) : for the electric dipole transitions l = 1 and ∆M = 0, ± 1. To compute the matrix elements Λ ) m J KM m J m J KM m J m J KM m J ∞ ∞ = j J J j , (2.3.5) where J 2 are the rotational quantum numbers for the bath molecule 2 J ρ are the populations of the corresponding energy levels, f(v) is the Maxwell-Boltzmann velocity distribution (normalised to unity) and b is the impact parameter. The matrix element of Eq. (2.3.3) thus becomes [6] 2 2 2Jm lµ m J l µ n l middle J J J pl J W J J J c J J J c J J J c c i J J J c J J J c J J J c i ℏ (2.8.16) Collisional Line Broadening and Shifting of Atmospheric Gases Downloaded from www.worldscientific.com by KAINAN UNIVERSITY on 12/27/14. For personal use only. σ A π J J J J W εσ C C J J S c c c f i f i c J J J J f i

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Intermolecular Forces Revealed by Raman Scattering

Cited by 9 publications

References 168 publications

The Expanding Frontiers of Tip-Enhanced Raman Spectroscopy

The Expanding Frontiers of Tip-Enhanced Raman Spectroscopy

Optical scanning tunneling microscopy based chemical imaging and spectroscopy

Semi-classical calculation of pressure-broadened line widths and pressure-induced line shifts

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