Inelastic spectroscopy

Special attention should be paid to the amplitude of the experimental curves, which roughly equals that predicted theoretically. In inelastic spectroscopy the amplitude of the EPI spectrum is an order of magnitude lower than expected one (see Fig. (1) in Ref. [14] and the discussion cited therein). This discrepancy may be explained either by the diffusive regime of current flow with and unknown mean free path (j, or by the specific PC-transport character of the EPI function obtained from the inelastic backscattering spectrum. 

P.S. Goyal, J. Penfold J. Tomkinson (1986). Chem. Phys. Lett., 127, 483-486. Observation by neutron incoherent inelastic spectroscopy of split higher harmonics of the ammonium ion librational mode in the cubic phase ofNHiBr. 

R. Stockmeyer, H.M. Conrad, A. Renouprez P. Fouilloux (1975). Surf. Sci., 49, 549-566. Study of hydrogen chemisorbed on Raney-nickel by neutron inelastic spectroscopy. 

A. Renouprez, P. Fouilloux, G. Coudurier, D. Tocchetti R. Stockmeyer (1977). J. Chem. Soc. Farad. Trans. 1, 74, 1-10. Different species of hydrogen chemisorbed on Raney nickel studied by neutron inelastic spectroscopy chemisorbed hydrogen and hydrogenous molecules. 

H. Jobic, G. Clugnet A. Renouprez (1987). J. Electron Spectrosc., 45, 281-290. Neutron inelastic spectroscopy of hydrogen adsorbed at different pressures on a Raney nickel catalyst. 

J.P. Candy, H. Jobic A.J. Renouprez (1983). J. Phys. Chem., 87, 1227-1230. Chemisorption of cyclohexene on nickel—a volumetric and neutron inelastic spectroscopy study. 

H. Jobic, J. Tomkinson, J.P. Candy, P. Fouilloux A. Renouprez (1980). Surf Sci., 95, 496. The structure of benzene chemisorbed on Raney nickel a neutron inelastic spectroscopy determination. 

A.J. Renouprez, G. Clugnet H. Jobic (1982). J. Catal., 74, 296-306. The interaction between benzene and nickel—a neutron inelastic spectroscopy study. 

H. Jobic A. Renouprez (1981). Surf. Sci., Ill, 53-62. Neutron inelastic spectroscopy of benzene chemisorbed on Raney platinum. 

C. Coulombeau H. Jobic (1988). ). J. Mol. Struct., 176, 213-222. Neutron inelastic spectroscopy of ethylene-oxide and partial reassignment of the vibrational frequencies. 

However, not all internal hydrogen is catalytically active for hydrogenation. Temperature program desorption measurements on Raney nickel revealed that surface hydrogen associated with the low-temperature desorption peak is involved primarily in hydrogenation [5] and neutron inelastic spectroscopy... 

The vibrational modes of [C02 (CO) e (H2"ti -HC2H) ] have been investigated by neutron inelastic spectroscopy . A number of papers have been published describing the preparation and use in organic synthesis of bridging-alkyne compounds of the type [C02(CO)6(MJ h -alkyne)] and a series of chiral alkyne cobalt compounds [C02 (CO) 5L(p2 Ti -alkyne) ] L = P(OMe)a, PBu"a PPha) ... 

Radtke, R.J., Lorente, M., Adolph, B., Berheide, M., Fricke, S., Grau, J., Herron, S., Horkowitz, J., Jorion, B., Madio, D., May, D., Miles, J., Perkins, L., Philip, O., Roscoe, B., Rose, D., Stoller, C., 2012. A new capture and inelastic spectroscopy tool takes geochemical logging to the next level. In Transactions 53rd Annula SPWLA Logging Symposium. 

ISS Ion scattering spectroscopy [153, 154] Inelastic backscattering of ions (-1 keV ion beam) Surface composition... 

SANS Small-angle neutron scattering [175, 176] Thermal or cold neutrons are scattered elastically or inelastically Incident-Beam Spectroscopy Surface vibrational states, pore size distribution suspension structure... 

T. Wolfram, ed.. Inelastic Electron Turmeling Spectroscopy, Springer-Verlag, New York, 1978. 

Electrons interact with solid surfaces by elastic and inelastic scattering, and these interactions are employed in electron spectroscopy. For example, electrons that elastically scatter will diffract from a single-crystal lattice. The diffraction pattern can be used as a means of stnictural detenuination, as in FEED. Electrons scatter inelastically by inducing electronic and vibrational excitations in the surface region. These losses fonu the basis of electron energy loss spectroscopy (EELS). An incident electron can also knock out an iimer-shell, or core, electron from an atom in the solid that will, in turn, initiate an Auger process. Electrons can also be used to induce stimulated desorption, as described in section Al.7.5.6. 

Seah M P and Dench W A 1979 Quantitative electron spectroscopy of surfaces a standard data base for electron inelastic mean free paths in solids Surf, interface Anai. 1 2... 

Powell C J 1994 Inelastic interactions of electrons with surfaces applications to Auger-electron spectroscopy and x-ray photoelectron spectroscopy Surf. Sc/. 299-300 34... 

Vibrational spectroscopy provides detailed infonnation on both structure and dynamics of molecular species. Infrared (IR) and Raman spectroscopy are the most connnonly used methods, and will be covered in detail in this chapter. There exist other methods to obtain vibrational spectra, but those are somewhat more specialized and used less often. They are discussed in other chapters, and include inelastic neutron scattering (INS), helium atom scattering, electron energy loss spectroscopy (EELS), photoelectron spectroscopy, among others. 

Perhaps the best known and most used optical spectroscopy which relies on the use of lasers is Raman spectroscopy. Because Raman spectroscopy is based on the inelastic scattering of photons, the signals are usually weak, and are often masked by fluorescence and/or Rayleigh scattering processes. The interest in usmg Raman for the vibrational characterization of surfaces arises from the fact that the teclmique can be used in situ under non-vacuum enviromnents, and also because it follows selection rules that complement those of IR spectroscopy. 

SIMS Secondary Ion mass spectroscopy A beam of low-energy Ions Impinges on a surface, penetrates the sample and loses energy In a series of Inelastic collisions with the target atoms leading to emission of secondary Ions. Surface composition, reaction mechanism, depth profiles... 

At T < tunneling occurs not only in irreversible chemical reactions, but also in spectroscopic splittings. Tunneling eliminates degeneracy and gives rise to tunneling multiplets, which can be detected with various spectroscopic techniques, from inelastic neutron scattering to optical and microwave spectroscopy. The most illustrative examples of this sort are the inversion of the... 

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