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Physical Review B, 1997
First-order Raman spectra of wurtzite GaN made from natural Ga and isotopically pure ${}^{15}\mathrm{N}$ and natural N (99.63% ${}^{14}\mathrm{N}$) were measured at low temperature. The Raman frequencies of the polar optical phonons [${A}_{1}(\mathrm{TO},\mathrm{LO})$, ${E}_{1}(\mathrm{TO},\mathrm{LO})$] shift according to the inverse square root of ...
Zhang, J. +6 more
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First-order Raman spectra of wurtzite GaN made from natural Ga and isotopically pure ${}^{15}\mathrm{N}$ and natural N (99.63% ${}^{14}\mathrm{N}$) were measured at low temperature. The Raman frequencies of the polar optical phonons [${A}_{1}(\mathrm{TO},\mathrm{LO})$, ${E}_{1}(\mathrm{TO},\mathrm{LO})$] shift according to the inverse square root of ...
Zhang, J. +6 more
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Laser Raman spectra of glucagon
Archives of Biochemistry and Biophysics, 1979Abstract Laser Raman spectroscopy study indicates that in concentrated fresh acidic solution (30 mg/ml), glucagon remains predominantly α-helix and not random-coil. The splitting of the amide III band into three components in the crystal at 1262, 1275, and 1295 cm −1 is due to the α-conformation as expected.
T C, Jao, G, Marquez
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Cytochrome c: Resonance Raman spectra
Biochimica et Biophysica Acta (BBA) - Protein Structure, 1972Abstract Resonance Raman spectra have been recorded for cytochrome c in both reduced and oxidized forms. The reduced form exhibits intense resonance scattering, and its spectrum is similar to that of oxyhemoglobin. The oxidized form gives much weaker scattering, but shows new bands which do not appear in the spectrum of the reduced form, and may ...
T C, Strekas, T G, Spiro
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Raman spectra of graphene ribbons
Journal of Physics: Condensed Matter, 2010Raman spectra of graphene nanoribbons with zigzag and armchair edges are calculated within non-resonant Raman theory. Depending on the edge structure and polarization direction of the incident and scattered photon beam relative to the edge direction, a symmetry selection rule for the phonon type appears.
R, Saito +3 more
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Resonance Raman spectra of chloroperoxidase
Biochimica et Biophysica Acta (BBA) - Protein Structure, 1976Resonant Raman spectra of native and reduced chloroperoxidase are presented and the principal features are tabulated. Comparisons are made with the spectra of other heme proteins. The correlation proposed for certain Raman “marker band” positions and spin or oxidation state is found not to hold for these spectra.
P M, Champion +4 more
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Polarized Raman Spectra X. Polarized Raman Spectra of Naphthalene Single Crystal
Journal of the Chinese Chemical Society, 1972AbstractThe polarized Raman spectra of naphthalene single crystal are recorded with a laser Raman spectrometer. Relative intensites of Raman lines in various polarizations are accurately measured by photon‐counting technique. All the strong lines are polarized in the c′c′ and bb polarizations, and the polarization data alone are not sufficient to ...
Tien‐Pin Lin, Chen‐Hanson Ting
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Journal of Molecular Structure, 1986
Abstract Raman spectra of amorphous phthalocyanine thin films have been studied. Theoretical and experimental correlations in polarization ratios are applied to vibrational assignments of symmetry species and to the problem of molecular orientation in thin solid films.
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Abstract Raman spectra of amorphous phthalocyanine thin films have been studied. Theoretical and experimental correlations in polarization ratios are applied to vibrational assignments of symmetry species and to the problem of molecular orientation in thin solid films.
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Philosophical Transactions of the Royal Society of London. Series A, Mathematical and Physical Sciences, 1979
Selection rules for resonance Raman spectra are given for several porphins of D 4h point group symmetry. A normal coordinate treatment is presented, based on a potential function for which stretching and bending force constants are related to bond lengths, and to the product of the bond lengths of the bonds defining
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Selection rules for resonance Raman spectra are given for several porphins of D 4h point group symmetry. A normal coordinate treatment is presented, based on a potential function for which stretching and bending force constants are related to bond lengths, and to the product of the bond lengths of the bonds defining
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Solid State Communications, 1976
Abstract The crystal structure of K 2 CuF 4 has been studied by means of Raman scattering. The structure is found to belong to the space group D 4 h 5 rather than D 4 h 17 of K 2 NiF 4 between 2 and 800 K because of the distortion arising from the “orbital ordering effect”.
M. Kaneko, G. Kuwabara, A. Misu
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Abstract The crystal structure of K 2 CuF 4 has been studied by means of Raman scattering. The structure is found to belong to the space group D 4 h 5 rather than D 4 h 17 of K 2 NiF 4 between 2 and 800 K because of the distortion arising from the “orbital ordering effect”.
M. Kaneko, G. Kuwabara, A. Misu
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Raman Spectra of NanophaseCr2O3
Journal of Raman Spectroscopy, 1996The Raman spectra of nanometer-sized Cr2O3 particles (annealed in air and in vacuum at different temperatures) at room temperature are reported. The results show that the correlation between the change of the Raman spectrum of nanometer Cr2O3 and its crystal size is different from that of other nanometer-sized materials.
Jian Zuo +5 more
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