Etude spectrométrique de la perturbation du niveau vibrationnel ν = 1 de l'état B2Σu+ de N2+ dans les bandes (1,0), (1,1), (1,2) du système B2Σu+–X2Σg+

1977 ◽  
Vol 55 (17) ◽  
pp. 1492-1498 ◽  
Author(s):  
A. M. Bouchoux ◽  
J. P. Goure
Keyword(s):  
High Resolution ◽  
Hollow Cathode ◽  
Vibrational Level ◽  
The State ◽  
Hollow Cathode Discharge ◽  
Molecular Constants

The (1,0), (1,1), (1,2) bands of the system B2Σu+ – X2Σg+ of the ion N2+ are obtained in a hollow cathode discharge. The high resolution spectrometric recording has permitted an analysis of the frequencies and of the relative intensities of the rotational lines. The molecular constants and the parameters ξ and η of the perturbation of the vibrational level ν = 1 of the B2Σu+ state by the level ν = 11 of the state A2Πu have been determined.

THE SPECTRUM OF CN IN THE VACUUM ULTRAVIOLET

1956 ◽  
Vol 34 (1) ◽  
pp. 83-95 ◽  
Author(s):  
P. K. Carroll
Keyword(s):  
Dissociation Energy ◽  
Fourth Order ◽  
Hollow Cathode ◽  
Vacuum Ultraviolet ◽  
Hollow Cathode Discharge ◽  
Molecular Constants

The spectrum of the CN radical has been investigated in the Schumann region using a three-meter vacuum spectrograph in the fourth order. A hollow cathode discharge through streaming helium, to which a trace of cyanogen was added, was used as source. Three new systems of bands were found in the region 1650–2100 Å. These involve two hitherto unknown states: a 2Σ state designated by E, which gives rise to the transitions E2Σ → X2Σ and E2Σ → A2Π, and an inverted 2Δ state designated by J, which gives rise to the transition J2Δ → A2Π. Rotational analyses of the bands have been made and the molecular constants evaluated. The new data, although not decisive, support the higher value (8.2 ev.) for the dissociation energy of CN.

Rotational Analysis of the A2Π–X2Σ+ Band System of the BeBr Molecule

1975 ◽  
Vol 53 (14) ◽  
pp. 1321-1326 ◽  
Author(s):  
M. Carleer ◽  
M. Herman ◽  
R. Colin
Keyword(s):  
High Resolution ◽  
Hollow Cathode ◽  
Band System ◽  
Rotational Analysis ◽  
Molecular Constants ◽  
Bromine Vapor

A rotational analysis has been performed on the 0–0 band of the A2Π–X2Σ+ transition of the BeBr molecule photographed at high resolution in emission from a beryllium hollow cathode in the presence of bromine vapor. The following principal molecular constants have been determined:[Formula: see text]

High resolution spectroscopy of iridium in a hollow cathode discharge

1993 ◽  
Vol 25 (2) ◽  
pp. 113-116 ◽  
Author(s):  
L. Gianfrani ◽  
G. M. Tino
Keyword(s):  
High Resolution ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
High Resolution Spectroscopy

High-resolution Fabry–Pérot interferometric emission measurements of the 535.046 nm thallium line in a see-through hollow cathode discharge

2007 ◽  
Vol 89 (1) ◽  
pp. 107-113 ◽  
Author(s):  
N. Taylor ◽  
N. Omenetto ◽  
B.W. Smith ◽  
J.D. Winefordner
Keyword(s):  
High Resolution ◽  
Hollow Cathode ◽  
Hollow Cathode Discharge ◽  
Fabry Perot

Spectroscopic identification of the SiH+ molecule: The A1Π–X1Σ+ system

1970 ◽  
Vol 48 (3) ◽  
pp. 247-253 ◽  
Author(s):  
A. E. Douglas ◽  
Barry L. Lutz
Keyword(s):  
Emission Spectrum ◽  
Ionization Potential ◽  
Hollow Cathode ◽  
Solar Spectrum ◽  
Hollow Cathode Discharge ◽  
Potential Curve ◽  
Dissociation Limit ◽  
Molecular Constants ◽  
State Potential ◽  
Spectroscopic Identification

The A1II–X1Σ+ transition of the SiH+ molecule has been observed in the emission spectrum of a hollow-cathode discharge through helium containing a trace of silane. The analysis of five bands yields the molecular constants Bc″ = 7.6603 cm−1, ΔG″(1/2) = 2088.69 cm−1, Bc′ = 4.9125 cm−1, ΔG′(1/2) = 390.17 cm−1, and v(0–0) = 25 025.20 cm−1. Because of the shallowness of the upper-state potential curve, a good estimate of the dissociation limit is obtained: D00(SiH+) = 3.20 ± 0.08 eV. This dissociation limit leads to an ionization potential of 8.01 ± 0.08 eV of SiH. The SiH+ molecule is tentatively identified in the solar spectrum and the possibility of detecting interstellar SiH+ is briefly discussed.

FT-IR Study of the Perpendicular Bands of 1,3,5-Triazine I:* The v7 and v9 Bands of 12C314N3H3 , 13C314N3H3, 12C315N3H3 and the Difference Band v9-v14 of 12C314N3H3

1998 ◽  
Vol 53 (8) ◽  
pp. 670-678 ◽  
Author(s):  
M. Pfeffer ◽  
W. Bodenmüller ◽  
A. Ruoff
Keyword(s):  
High Resolution ◽  
Ir Spectra ◽  
The State ◽  
Molecular Constants ◽  
Ft Ir ◽  
The Difference ◽  
Ir Study

Abstract The analysis of the high resolution FT-IR spectra of the perpendicular bands v7 (E') at about 1550 cm -1 and V9 (E') at about 1170 cm -1 of the isotopomers 12C314N3H3 , 13C3 14N3H3 , and l2C3I5N3H3 is given. Both bands proved to be free from accidental resonances. The molecular constants of the state v7 = 1 and v9 = 1 of the isotopomers under consideration are listed. The weak difference band v9-vl4 (E" → E') of 12C314N3H3 was recorded and analyzed, using the molecular constants of v9 = 1 [this work] and V14 = 1 [of 1995], This analysis proves the quality of the molecular constants of the fundamental v14 which is IR-inactive.

THE SPECTRUM OF THE P2+ MOLECULE

1957 ◽  
Vol 35 (10) ◽  
pp. 1242-1249 ◽  
Author(s):  
N. A. Narasimham
Keyword(s):  
High Resolution ◽  
Discharge Tube ◽  
Hollow Cathode ◽  
Ground State ◽  
Band System ◽  
Hollow Cathode Discharge ◽  
Lower State ◽  
Vibrational Constants

Two band systems attributed to the P2+ molecule have been excited in a hollow cathode discharge tube. The first of these is a 2Π—2Π band system lying in the region 3400–3850 Å. The lower state of this system probably is the ground state of the P2+ molecule. The second system is a 2Σ—2Σ system lying in the region 3900–4400 Å. High resolution spectra of both the band systems have been analyzed and the rotational and vibrational constants determined.

HIGH RESOLUTION INTERMODULATED AND DOUBLE RESONANCE ATOMIC SPECTROSCOPY IN A HOLLOW CATHODE

1983 ◽  
Vol 44 (C7) ◽  
pp. C7-217-C7-225 ◽  
Author(s):  
M. Inguscio
Keyword(s):  
High Resolution ◽  
Hollow Cathode ◽  
Double Resonance ◽  
Atomic Spectroscopy
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