Results 251 to 260 of about 1,603,175 (288)
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Rubber Chemistry and Technology, 1935
Abstract It has been previously reported that the Raman effect is exhibited by rubber as a continuous scattering together with the presence of broad bands (Franklin and Laird, Phys. Rev., 36, 147 (1930); Busse, J. Phys. Chem., 36, 2862 (1932)). Busse attributed this result to the viscosity of the solutions or to the possibility that the rubber ...
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Abstract It has been previously reported that the Raman effect is exhibited by rubber as a continuous scattering together with the presence of broad bands (Franklin and Laird, Phys. Rev., 36, 147 (1930); Busse, J. Phys. Chem., 36, 2862 (1932)). Busse attributed this result to the viscosity of the solutions or to the possibility that the rubber ...
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Energy & Fuels, 2012
Asphaltenes extracted from seven different crude oils representing different geological formations from around the globe were analyzed using the Raman spectroscopic technique. Each spectrum is fitted with four main peaks using the Gaussian function. On the basis of D1 and G bands of the Raman spectrum, asphaltene indicated an ordered structure with the
Abdallah, Wael A., Yang, Yang
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Asphaltenes extracted from seven different crude oils representing different geological formations from around the globe were analyzed using the Raman spectroscopic technique. Each spectrum is fitted with four main peaks using the Gaussian function. On the basis of D1 and G bands of the Raman spectrum, asphaltene indicated an ordered structure with the
Abdallah, Wael A., Yang, Yang
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Raman spectrum of difluorodiazirine
Spectrochimica Acta Part A: Molecular Spectroscopy, 1979Abstract The Raman spectrum of difluorodiazirine has been re-examined. Four well-defined bands have been found in the low frequency region, which lead to a definitive assignment for all nine vibrational fundamentals of this molecule. The fundamental frequences are (in cm −1 ): ( a 1 ) 1563, 1282, 805, 502; ( a 2 ) 451; ( b 1 ) 1248, 481; ( b 2 ...
Norman C. Craig, Mark A. Kliewer
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THE RAMAN SPECTRUM OF FLUORINE
Canadian Journal of Physics, 1951The rotational and vibrational Raman spectra of gaseous fluorine at 1 atm. pressure were obtained. From these spectra the constants of the molecule in the electronic ground state were determined to be:[Formula: see text]The intensity alternation in the rotational spectrum shows that the nuclear spin of fluorine is [Formula: see text] and that the F19 ...
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Proceedings of the Indian Academy of Sciences - Section A, 1956
The Raman spectrum of magnesite (MgCO3) has been investigated and found to be analogous in its features to that of calcite, as is to be expected in view of the similarity of structure. The frequency shifts observed are: 212 (w), 332 (st), 735 (w), 1096 (st) and 1460 (?) cm.−1 All the frequencies and especially the two lowest are notably higher than for
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The Raman spectrum of magnesite (MgCO3) has been investigated and found to be analogous in its features to that of calcite, as is to be expected in view of the similarity of structure. The frequency shifts observed are: 212 (w), 332 (st), 735 (w), 1096 (st) and 1460 (?) cm.−1 All the frequencies and especially the two lowest are notably higher than for
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Proceedings of the Indian Academy of Sciences - Section A, 1944
The Raman spectra of diamonds of the ultra-violet transparent type have been investigated using the 2536 resonance line of mercury as exciter. Besides the well-known 1332 Raman line, ten others with frequency shifts 1925, 2175·5, 2245, 2267, 2300·5, 2467, 2495, 2518, 2609·5 and 2664·6 cm.−1 have been recorded.
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The Raman spectra of diamonds of the ultra-violet transparent type have been investigated using the 2536 resonance line of mercury as exciter. Besides the well-known 1332 Raman line, ten others with frequency shifts 1925, 2175·5, 2245, 2267, 2300·5, 2467, 2495, 2518, 2609·5 and 2664·6 cm.−1 have been recorded.
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Wavelength tunable Raman fiber laser based on Raman gain spectrum control
Optics and Laser Technology, 2023Shixun Dai, Duanduan Wu, Peipei Zheng
exaly
Raman spectrum of trifluorochloroethylene
Transactions of the Faraday Society, 1954J. A. Rolfe, L. A. Woodward
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