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1. |
Resonance Raman Spectroscopy of Porphin |
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Spectroscopy Letters,
Volume 7,
Issue 3,
1974,
Page 133-145
R. Plus,
M. Lutz,
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摘要:
We report and discuss Raman spectra of porphin. These were obtained by resonance effect, irradiating in the electronic band IV. Unexpected variations of vibrational band intensities and depolarization ratios were recorded on changing the excitation wavelength. Some implications on the symmetry types of the vibrations are discussed. Results are compared with current data from quasi-linear electronic spectra.
ISSN:0038-7010
DOI:10.1080/00387017408067229
出版商:Taylor & Francis Group
年代:1974
数据来源: Taylor
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2. |
A Study of Redistribution of Fluorine Ions Between Al3+and Be2+By Means of19NMR |
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Spectroscopy Letters,
Volume 7,
Issue 3,
1974,
Page 147-152
Yu.A. Buslaev,
V.V. Peshkov,
R.L. Davidovich,
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PDF (225KB)
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摘要:
In the system Al(NO3)3- NaF - H20, 19FNMR was used to findIthe existence of AlF2+and AlF+2with chemical shifts of 587.5 and 587.0 p.p.m. in relation to F2. Fluorine ion exchange between these two forms impeded identification of certain signals in the spectrum. Matwiyoff and Wageman2recorded the simultaneous presence of three signals in the I9FNMR spectrum and assigned them to three forms of aluminum: AlF2+, AlF+2and AlF3. Squilibrium constants were calculated for the reaction
ISSN:0038-7010
DOI:10.1080/00387017408067230
出版商:Taylor & Francis Group
年代:1974
数据来源: Taylor
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3. |
Hanle Signal Correction for Asymmetric Scattering Region |
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Spectroscopy Letters,
Volume 7,
Issue 3,
1974,
Page 153-159
M.S. Mathur,
T.K. Koh,
P.M. Kelly,
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PDF (181KB)
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摘要:
Hanle technique is used for the lifetime measurement of the atomic excited states. Field dependent Hanle signal is Lorentzian under ideal conditions. Any departure from ideal situation reflects in the shape of the Hanle signal resulting in erroneous lifetime. One such factor and the elimination of its effect has been discussed here.
ISSN:0038-7010
DOI:10.1080/00387017408067231
出版商:Taylor & Francis Group
年代:1974
数据来源: Taylor
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4. |
Electronic Emission Spectrum of SeO2 |
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Spectroscopy Letters,
Volume 7,
Issue 3,
1974,
Page 161-174
V.S. Kushawaha,
C.M. Pathak,
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PDF (1061KB)
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摘要:
A transformer discharge through SeO2vapor under flowing conditions gives rise to the known C-X system of SeO2in the region 4000–5500 A. About sixty bands, including 38 new bands are measured and analysed. Including these new bands a fresh analysis is made, which differs in certain respects from the analysis reported earlier and yields the following frequencies for the upper and lower electronic states involved in the transition:
ISSN:0038-7010
DOI:10.1080/00387017408067232
出版商:Taylor & Francis Group
年代:1974
数据来源: Taylor
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5. |
On The Dissociation Eneroy Of MgF |
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Spectroscopy Letters,
Volume 7,
Issue 3,
1974,
Page 175-186
O.Nath Singh,
B.P. Asthana,
O.N. Singh,
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PDF (434KB)
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摘要:
The method of fitting the electronegativity potential energy function to the experimental potential energy curves (R. K. R. V.-curves) has been employed to compute the dissociation energy of MgF. The result thus obtained has been compared with earlier results and the validity of the relation, for this molecule, has been discussed with special reference to rather marked peculiarity in a class of those molecules, one of whose constituent atoms has1SOas its ground state.
ISSN:0038-7010
DOI:10.1080/00387017408067233
出版商:Taylor & Francis Group
年代:1974
数据来源: Taylor
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6. |
Editorial |
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Spectroscopy Letters,
Volume 7,
Issue 3,
1974,
Page -
J.W. Robinson,
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PDF (119KB)
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ISSN:0038-7010
DOI:10.1080/00387017408067228
出版商:Taylor & Francis Group
年代:1974
数据来源: Taylor
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