Results 251 to 260 of about 2,634,309 (306)

Ir spectrum of dinitrosyldicarbonyliron

Journal of Molecular Structure, 1969
Abstract An analysis of the vapour and liquid spectra of Fe(CO)2(NO)2 in the range 5000-250 cm−1 has led to an assignment of all the fundamental vibrations. A normal-coordinate treatment has been carried out using a diagonal symmetry force field on the basis of a C2v symmetry model for the molecule.
A. Poletti, A. Santucci, A. Foffani
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IR rotational spectrum of methylamine

Journal of Quantitative Spectroscopy and Radiative Transfer, 2020
Abstract Recent progress is reported on the assignment and fitting of a rotational spectrum of methylamine in the ground vibrational state and first and second torsional states. The high resolution infrared spectrum has been analyzed in the 40 to 360 cm−1 region with a resolution of 0.00125 cm−1.
Iwona Gulaczyk, Marek Kręglewski
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The IR spectrum of T218O

Journal of Molecular Spectroscopy, 1984
Analyse du spectre IR de T 2 O dans le domaine des frequences ν 1 et ν 2 et ν 3 . Calcul de la constante de couplage de Coriolis.
I. Kanesaka, M. Tsuchida, K. Kawai, T. Takeuchi   +3 more
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The IR spectrum of the double QSO

Nature, 1980
The hypothesis that the double QSO, 0957 + 561A,B (separation 6 arcs s and z = 1.4) is formed by a gravitational lens1 has found strong support from observations2 suggesting the presence of an intervening giant elliptical galaxy with z ≃ 0.4, separated from component B by
M. J. Lebofsky, G. H. Rieke, D. Walsh, R. J. Weymann   +3 more
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IR absorption spectrum of thiohydantoin

Soviet Physics Journal, 1970
The IR absorption spectrum of thiohydantoin is found in the range 400–3500 cam−1, and the normal-mode frequencies are calculated on the basis of a model. The IR spectrum is interpreted on the basis of the theoretical results, the experimental x-ray spectrum, and the microwave dielectric constants.
R. S. Lebedev, R. P. Chumakova, V. N. Yukhimets, V. I. Yakimenko   +3 more
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Theoretical study of silsesquioxane organometallic complex structure and IR spectrum. II Interpretation of the IR spectrum

Journal of Molecular Structure, 1998
Abstract On the basis of the parameters identified in the first paper of this series of two, the spectral distribution curves of the absorption coefficient in the IR spectral interval for a silsesquioxane organometallic complex were calculated. Good agreement with experimental data was obtained.
I.E. Davidova, L.A. Gribov, I.V. Maslov, V. Dufaud, G.P. Niccolai, F. Bayard, J.M. Basset   +6 more
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ChemInform Abstract: Far‐IR and ν2 Vibration‐Rotation Spectrum of Thioformaldehyde and IR Spectrum of Thioglyoxal.

ChemInform, 1993
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a “Full Text” option. The original article is trackable via the “References” option.
D. MCNAUGHTON, D. N. BRUGET
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Solid state effects in the IR spectrum of Octahydridosilasesquioxane

Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2004
Infrared spectrum of Octahydridosilasesquioxane, in the solid state, is reported and analyzed to show the presence of significant solid state effects. This is in marked contrast with the reported Raman spectroscopic studies of this compound in the solid state where no evidence for such a proliferation of these effects were found.
Chomel, Arnold Desmartin, Jayasooriya, Upali A., Babonneau, Florence   +2 more
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A flare in the millimetre to IR spectrum of 3C273

Nature, 1983
Over the past two years some of us (E.I.R., P.A.R.A., W.K.G., M.G.S., and I.G.N.) have been monitoring the millimetre and submillimetre spectrum of 3C273 (ref. 1). We have presented elsewhere a quiescent millimetre-to-far-IR spectrum2 with an index α = −0.7 (Sv α vα) connecting smoothly to the radio and mid-IR.
E. I. Robson, W. K. Gear, P. E. Clegg, P. A. R. Ade, M. G. Smith, M. J. Griffin, I. G. Nolt, J. V. Radostitz, R. J. Howard   +8 more
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Analysis of glucopyranoside trinitrate IR spectrum

Journal of Applied Spectroscopy, 2008
The IR spectrum of 4-O-methyl-2,3,6-tri-O-nitromethyl-β-D-glucopyranoside has been interpreted in detail for the first time based on complete calculation of the normal vibration frequencies and absolute intensities of its IR absorption bands and a comparison of them with the corresponding experimental data. The results indicate that the location of the
M. V. Korolevich, V. N. Piottukh-Peletskii   +1 more
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