Rotational analysis of four bands of the γ′(B3Π–X3Δ) system of TiO

The (0,0), (1,0), (0,1), and (1,1) bands of the γ′(B3Π–X3Δ) system of TiO have been rotationally analysed up to J = 55. Accurate molecular constants have been determined for the ν = 0and ν = 1 levels of the B3Π and X3Δ states. The three substates of the B3Π state all show significant Λ-type doubling, which has been analysed using a full matrix treatment. Our new results give corrected values for the ground state spin–orbit splittings; they also illustrate very clearly the problem of the correlation of the various centrifugal distortion parameters appearing in the Hamiltonian for a triplet electronic state.

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Rotational Analysis of the lΠ–XlΣ+ System of C80Se

Canadian Journal of Physics ◽

10.1139/p74-111 ◽

1974 ◽

Vol 52 (9) ◽

pp. 813-820 ◽

Cited By ~ 4

Author(s):

René Stringat ◽

Jean-Paul Bacci ◽

Marie-Hélène Pischedda

Keyword(s):

Emission Spectrum ◽

Ground State ◽

High Frequency ◽

Rotational Analysis ◽

Molecular Constants ◽

High Frequency Discharge ◽

Perturbed State ◽

Simple Evaluation ◽

Π State

The strongly perturbed 1Π–X1Σ+ system of C80Se has been observed in the emission spectrum of a high frequency discharge through selenium and carbon traces in a neon atmosphere. The analysis of five bands yields, for the molecular constants of the ground state, the values Be″ = 0.5750 cm−1, [Formula: see text], αe″ = 0.00379 cm−1, re″ = 1.676 Å, ΔG″(1/2) = 1025.64 cm−1, and ΔG″(3/2) = 1015.92 cm−1. The numerous perturbations in the 1Π state prohibit the simple evaluation of the constants of the perturbed state and of the perturbing ones.

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Electronic Spectrum of the N80Se Molecule in the Region 2840–3200 Å

Canadian Journal of Physics ◽

10.1139/p71-247 ◽

1971 ◽

Vol 49 (15) ◽

pp. 2033-2051 ◽

Cited By ~ 9

Author(s):

L. Harding ◽

W. E. Jones ◽

K. K. Yee ◽

A. Jenouvrier ◽

D. Daumont ◽

...

Keyword(s):

Electronic Spectrum ◽

Ground State ◽

Orbit Coupling ◽

Spin Orbit Coupling ◽

Spin Orbit ◽

Rotational Analysis ◽

Coupling Constant ◽

Molecular Constants ◽

First Time

The vibrational and rotational analysis of 12 red degraded bands of N80Se, in the region 2800 to 3200 Å, is reported. These bands are attributed to two progressions, ν′ = 1 and ν′ = 2, of the subsystem C2Δ5/2–X2Π3/2 and to two progressions, ν′ = 0, of the system B2Σ–X2Π(a).Tables of molecular constants of the observed states are given. For the first time it has been possible to calculate the spin–orbit coupling constant, Aeff, of the ground state, X2Π(a).

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The Vacuum Ultraviolet Spectrum of Selenium Hydride I. Determination of the Ground State Spin-Orbit Coupling Constant

Physica Scripta ◽

10.1088/0031-8949/17/6/004 ◽

1978 ◽

Vol 17 (6) ◽

pp. 561-564 ◽

Cited By ~ 12

Author(s):

P Bollmark ◽

B Lindgren ◽

B Rydh ◽

U Sassenberg

Keyword(s):

Ground State ◽

Vacuum Ultraviolet ◽

Ultraviolet Spectrum ◽

Orbit Coupling ◽

Spin Orbit Coupling ◽

Spin Orbit ◽

Coupling Constant ◽

Ground State Spin ◽

State Spin

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Centrifugal Distortion Parameters of Fulminic Acid, HCNO, from the Millimeter-Wave Rotational Spectra

Zeitschrift für Naturforschung A ◽

10.1515/zna-1971-0123 ◽

1971 ◽

Vol 26 (1) ◽

pp. 128-131 ◽

Cited By ~ 33

Author(s):

Manfred Winnewisser ◽

Brenda P. Winnewisser

Keyword(s):

Millimeter Wave ◽

Ground State ◽

Rotational Spectrum ◽

Centrifugal Distortion ◽

Vibrational States ◽

Molecular Constants ◽

Rotational Spectra ◽

First Excited State ◽

Bending Modes ◽

Distortion Parameters

Abstract A newly designed millimeter-wave spectrometer has been employed for precise measurements of the millimeter-wave rotational spectrum of HCNO. Absorptions in several excited vibrational states as well as the ground state could be measured. The present paper presents the observed frequen cies and molecular constants obtained for the ground state and the first excited state of v4 and of v5, the vibrational bending modes

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Rotational analysis of the BaI C2Π–X2Σ+ (0,0) band

Canadian Journal of Physics ◽

10.1139/p84-193 ◽

1984 ◽

Vol 62 (12) ◽

pp. 1467-1477 ◽

Cited By ~ 24

Author(s):

Mark A. Johnson ◽

Chifuru Noda ◽

John S. McKillop ◽

Richard N. Zare

Keyword(s):

Significant Interaction ◽

Molecular Beam ◽

Band System ◽

Spectroscopic Techniques ◽

Spin Orbit ◽

Rotational Analysis ◽

Local Perturbations ◽

State Spin ◽

Laser Spectroscopic ◽

Π State

Rotational analysis of the BaI C2Π–X2Σ+ (0,0) band system has been performed using molecular beam and laser spectroscopic techniques. This band is free from local perturbations, although significant interaction of the C2Π state with several other 2Σ+ states is indicated. The spin-orbit ordering of the C state is confirmed to be regular, while the Λ-doubling parameters p and q are opposite in sign. Apparent anomalies in the line strengths of various rotational branches in the two spin-orbit sub-bands are related to observed differences in the hyperfine structure of the C-state spin-orbit components.

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ROTATIONAL ANALYSIS OF THE β BANDS OF PHOSPHORUS MONOXIDE

Canadian Journal of Physics ◽

10.1139/p59-019 ◽

1959 ◽

Vol 37 (2) ◽

pp. 136-143 ◽

Cited By ~ 26

Author(s):

Nand Lal Singh

Keyword(s):

Ground State ◽

Band System ◽

Electronic States ◽

Rotational Analysis ◽

Rotational Constants ◽

Fine Structures ◽

Π State

The fine structures of three of the β bands of PO which occur near 3200 Å have been analyzed. The analysis shows that the upper state of this band system is a 2Σ and not a 2Π state as previously believed. The rotational constants of both electronic states have been determined and it is found that the ground state constants, previously determined from the γ bands, are incorrect.

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