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study of the molecular structure by the Raman method ... by Malcolm MacKenzie Renfrew

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Published in [New York .
Written in


  • Raman effect.,
  • Molecules.

Book details:

Edition Notes

Statementby Malcolm MacKenzie Renfrew ...
LC ClassificationsQC454 .R45 1938
The Physical Object
Pagination5 l.
ID Numbers
Open LibraryOL6384511M
LC Control Number39007203

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This spectroscopic technique is a powerful and a non-invasive method for the study of protein changes in secondary structure, mainly quantified, analysing the amide I (– cm− 1) and amide III (– cm− 1) regions and C-C stretching band ( cm− 1), as well as modifications in protein local environments (tryptophan residues, tyrosil doublet, aliphatic aminoacids bands) of muscle food Cited by:   Raman spectra of the CO stretch for liquid methanol and its aqueous solutions were simulated using the combined electronic structure and molecular dynamics simulation method. The instantaneous vibrational frequencies were obtained from an empirical mapping to the electrostatic potentials, while vibrational couplings between different molecules were calculated using the transition Cited by: 8. Raman spectroscopy is an optical, vibrational spectroscopic technique that provides detailed information about molecular composition and molecular structure (see Chapter 29). In recent years Raman spectroscopic tissue characterization and its potential application to in vivo diagnosis of diseases is attracting increasing attention.   As a practical application, the method of Raman spectroscopy for the detection and identification of fake wine is still in the stage of perfect research. This study shows that the cm −1 Raman shift is the main spectral basis for the detection of methanol, and cm −1 and cm −1 can be used as references.

  Raman spectroscopic study on ZrO2-TiO2 using MoO3 as a molecular probe. Journal of Raman Spectroscopy , 22 (6), DOI: /jrs S. Ted Oyama. Structuee and reactivity of silica-supported vanadium oxide. Infrared and Raman spectroscopy involve the study of the interaction of radiation with molecular vibrations but differs in the manner in which photon energy is transferred to the molecule by changing its vibrational state. IR spectroscopy measures transitions between molecular vibrational energy levels as a result of the absorption of mid-IR. Raman spectroscopy (/ ˈ r ɑː m ən /); (named after Indian physicist C. V. Raman) is a spectroscopic technique typically used to determine vibrational modes of molecules, although rotational and other low-frequency modes of systems may also be observed. Raman spectroscopy is commonly used in chemistry to provide a structural fingerprint by which molecules can be identified.   We found out that the peak positions and intensities of some Raman lines depend on the molecular weight and the aggregate state. In this study, we have carried out experimental research in conjunction with ab initio calculations to reveal the relations between the PEG molecular conformation, molecular weight and the Raman spectrum.

The book covers a wide range of applications of molecular and laser spectroscopy in diverse areas ranging from materials to medicine and defence, biomedical research, environmental monitoring, forensic investigations, food and agriculture, and chemical, pharmaceutical and .   RAMAN SPECTROSCOPY o Raman spectroscopy is the measurement of the wavelength and intensity of inelastically scattered light from molecules. o The Raman scattered light occurs at wavelengths that are shifted from the incident light by the energies of molecular vibrations. o Raman spectroscopy is used to determine molecular motions, especially.   As an optical method, Raman enables nondestructive analysis of chemical composition and molecular structure. Applications of Raman spectroscopy in polymer, pharmaceutical, bioprocessing, and biomedical analysis have surged in the past three decades as laser sampling and detector technology has improved. Raman scattering is extensively used as a powerful tool for the determination of molecular structures and nature of bonding in molecules because it allows selective structural, surface processes, interface reaction, and kinetic investigations of various kinds of molecules from gaseous molecules, liquid molecules, polymers, and biomolecules.