The pre-resonance Raman spectra of quinoxaline excited with six different wavelengths in the region 450–520 nm are reported. The changes in intensity of the 877 cm 1 vibrational Raman band with excitation wavenumber, follow the Albrecht and Hutley F B term and confirm that this vibration of b...
Pre-resonance Raman intensitiesPre-resonance Raman intensitiesA series expansion for the sum over the vibrational levels of an intermediate electronic state, which occurs in the dispersion theory of the Raman effect, is presented. The convergence properties of the series, as a function of electron鈥...
The anomaly observed in the pre-resonance Raman spectra in the three compounds was initially explained by the Albrecht-Hutley Model, but its failure leads us to explain the anomalous intensity enhancement mechanism by invoking an interference effect between a weak dipole-forbidden excited state and a...
A study of the Raman, pre‐resonance Raman and electronic spectra of the [VO(C3H2O4)2]2? anion was performed. The excitation profiles of the vibrational modes that show pre‐resonance on excitation with laser lines within the electronic bands in the visible region are reported. On this ...
ROBERTE.COOKINGHAMAARONLEWISDAVIDW.COLLINSMICHAELA.WILEY‐VCH Verlag GmbHChemischer InformationsdienstCookingham, R.E., Lewis, A., Collins, D.W., Marcus, M.A.: Preresonance Raman spectra of crystals of retinal isomers. J. Am. Chem. Soc. 98 , 2759–2963 (1976)....
The FTIR spectrum for vapour and the Raman spectrum for the liquid of difluorosulphenilimine cyanide (FS(O)NCN) are presented. Csymmetry is suggested for the main conformer in the liquid phase. Vibrational assignments are made for all but the torsional fundamental mode. The symmetry force const...
Wavelength dependence of the preresonance Raman cross sections of CH3CN, SO42-, ClO4-, and NO3-.The Raman scattering cross sections of vibrations of SO4-2, NO3-, ClO4-, and CH3CN have been determined between 220–640 nm. The cross sections of the symmetric stretching vibrations of SO4-...
Gagliardi et al., Pre-Resonance Raman Characterization of Metal-Organic Films From Titanium Alkoxide Carboxylate Complexes, Mat. Res. Soc. Syp. Proc., 180, 801-805 (1990).Gagliardi et al., Pre-Resonance Raman Characterization of Metal-Organic Films From Titanium Alkoxide Carboxylate Compleses, ...
Pre-Resonance Raman Spectroscopy-Based Explosives Detectorpre-resonance Raman spectroscopyexplosiveApre-resonanceRamanspectroscopybasedexplosivesdetectionsystemhasbeendevelopedusingUVlaseratwavelength266nmhavingpulseenergyof30mJandrepetitionrateof20HzA4-inchUV-enhancedcollectionopticsandback-thinnedUV-enhancedchargedcoupled...
The preresonance Raman intensity enhancement for the ν C C and ν C N vibrations of TCNE complexed with toluene, benzene and fluorobenzene is established. Conclusions regarding the electronic states responsible for the effect are presented.