ABSORPTION SPECTRUM OF THE NO MOLECULE: II. NEW FINE-STRUCTURE ANALYSES BELOW 1600 Å

1962 ◽  
Vol 40 (3) ◽  
pp. 352-357 ◽  
Author(s):  
A. Lagerqvist ◽  
E. Miescher
Keyword(s):  
Nitric Oxide ◽  
Absorption Spectrum ◽  
Fine Structure ◽  
Oxide Molecule

Several new excited doublet states of the nitric oxide molecule are identified. Some of these are upper states of NO bands observed in the visible and infrared.

Absorption spectrum in the vacuum ultraviolet and visible emission spectrum of the NO molecule. The 4d complex

1969 ◽  
Vol 47 (8) ◽  
pp. 881-891 ◽  
Author(s):  
R. Suter
Keyword(s):  
Nitric Oxide ◽  
Absorption Spectrum ◽  
Emission Spectrum ◽  
Vacuum Ultraviolet ◽  
Visible Emission ◽  
Resolving Power ◽  
Weak Band ◽  
Oxide Molecule ◽  
Rydberg Electron

The structure of the 4d Rydberg term complex of the nitric oxide molecule has been studied by rotational analyses of the following bands photographed with spectrographs of high resolving power: (i) the weak band 4d–X2Π observed at 1470 Å in the absorption spectrum, (ii) the group 4d–3p of Rydberg–Rydberg bands observed as 4d–C2Π (6400 Å) and 4d–D2Σ+ (6800 Å) bands in the emission spectrum of a discharge. A type of l uncoupling of the Rydberg electron of the molecule is found very similar to the case already known for the 3d complex of NO. Constants characterizing the d complexes are calculated, and a comparison of the 3d and 4d complex is made.

Direct Transition Exciton and Fine Structure of the Magneto-Absorption Spectrum in Germanium

1958 ◽  
Vol 109 (6) ◽  
pp. 2207-2209 ◽  
Author(s):  
Solomon Zwerdling ◽  
Laura M. Roth ◽  
Benjamin Lax
Keyword(s):  
Absorption Spectrum ◽  
Fine Structure ◽  
Direct Transition

X-Ray Absorption Fine Structure Study in FeTiO3

1997 ◽  
Vol 11 (16n17) ◽  
pp. 745-748 ◽  
Author(s):  
Rebekah Min-Fang Hsu ◽  
Kai-Jan Lin ◽  
Cheng Tien ◽  
Lin-Yan Jang
Keyword(s):  
Absorption Spectrum ◽  
Fine Structure ◽  
Absorption Spectra ◽  
Mixed Valence ◽  
Structure Study ◽  
X Ray ◽  
Xafs Spectroscopy ◽  
Absorption Fine ◽  
Trivalent State ◽  
X Ray Absorption

X-ray absorption fine structure XAFS spectroscopy has been used to determine the valence system for the Fe atom in ilmenite, FeTiO3 . This is the first XAFS data in FeTiO3 to our knowledge. The α- Fe2O3 data served as the standard in determining the ionization of the Fe atom in FeTiO3 . Observation of intensity and k-space are consistent. There was no evidence of mixed valence on comparing the FeTiO3 near edge X-ray absorption spectrum with α- Fe2O3 data. The absorption spectra suggest that iron is in the trivalent state in ilmenite.

The experimental electronic and vibrational spectra of fulvene

1970 ◽  
Vol 23 (9) ◽  
pp. 1707 ◽  
Author(s):  
RD Brown ◽  
PJ Domaille ◽  
JE Kent
Keyword(s):  
Absorption Spectrum ◽  
Fine Structure ◽  
Gas Phase ◽  
Energy Transition ◽  
Liquid Nitrogen Temperature ◽  
Electronic Transitions ◽  
Mo Calculations ◽  
Polycrystalline Layer ◽  
Partial Analysis ◽  
Electronic And Vibrational Spectra

The infrared spectrum of fulvene has been observed from 250 to 4000 cm-1 in the gas phase, and as a glass and a polycrystalline layer at liquid nitrogen temperature. On the basis of gas-phase contours and P-R separations 14 of the 30 fundamental vibrations have been assigned. The electronic absorption spectrum of fulvene has been recorded from 400 to 167 nm in the gas phase and four electronic transitions have been identified. The lowest-energy transition was found to be broad and structureless while the three higher-energy transitions showed an extensive vibrational fine structure. The electronic transitions have been tentatively assigned on the basis of VESCF-MO calculations and a partial analysis of the vibronic structure has bees made.

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