Depopulation of the 53P1 state of cadmium by collisions with ground-state Cd and noble-gas atoms

Although matrix perturbations affect the energies and intensities of atomic transitions, it has been found that the complex spectra of matrix-isolated metal atoms correlated remarkably well with electronic transitions involving the ground state of the analogous gaseous atoms. A series of line drawings is therefore presented which depict these transitions for 64 neutral gaseous elements. In addition a set of tables is included which gives the intensities and energies of all experimentally observed gaseous transitions involving the atomic ground state. The electronic configurations and state designations for the various states involved in these transitions are also listed. Two examples of the correlation between the spectra of gaseous and matrix-isolated atoms, are discussed, these being Cu and Pt in an Ar matrix.

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Prediction of neutral noble gas insertion compounds with heavier pnictides: FNgY (Ng = Kr and Xe; Y = As, Sb and Bi)

Physical Chemistry Chemical Physics ◽

10.1039/c6cp01338d ◽

2016 ◽

Vol 18 (17) ◽

pp. 12289-12298 ◽

Cited By ~ 17

Author(s):

Ayan Ghosh ◽

Debashree Manna ◽

Tapan K. Ghanty

Keyword(s):

Electronic State ◽

Ground State ◽

Noble Gas ◽

Insertion Compounds ◽

First Time

Neutral noble gas insertion compounds involving arsenic, antimony and bismuth atoms wherein the triplet electronic state is the ground state are predicted for the first time.

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Noble gas hydrides in the triplet state: HNgCCO+ (Ng = He, Ne, Ar, Kr, and Xe)

Physical Chemistry Chemical Physics ◽

10.1039/c8cp03516d ◽

2018 ◽

Vol 20 (30) ◽

pp. 20270-20279 ◽

Cited By ~ 6

Author(s):

Ayan Ghosh ◽

Arijit Gupta ◽

Rishabh Gupta ◽

Tapan K. Ghanty

Keyword(s):

Triplet State ◽

Ab Initio ◽

Ground State ◽

Noble Gas ◽

Electronic Ground State ◽

Electronic Ground

Existence of noble gas-inserted ketenyl cations, HNgCCO+ (Ng = He, Ne, Ar, Kr, and Xe) species, with a triplet electronic ground state is predicted through ab initio calculations.

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A hollow cathode arc as a high intensity beam source for ground state and metastable noble gas atoms in the eV translational energy range

Vacuum ◽

10.1016/0042-207x(83)90752-2 ◽

1983 ◽

Vol 33 (7) ◽

pp. 422

Keyword(s):

Energy Range ◽

Hollow Cathode ◽

Ground State ◽

High Intensity ◽

Noble Gas ◽

Translational Energy ◽

Beam Source ◽

Cathode Arc

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Ionization processes in ground-state alkali-noble gas collisions. II. K-Ar

Journal of Physics B Atomic Molecular and Optical Physics ◽

10.1088/0953-4075/24/2/013 ◽

1991 ◽

Vol 24 (2) ◽

pp. 459-471 ◽

Cited By ~ 2

Author(s):

P Kuik ◽

A W Baerveldt ◽

H A Dijkerman ◽

H G M Heideman

Keyword(s):

Ground State ◽

Noble Gas ◽

Ionization Processes

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A hollow cathode arc as a high intensity beam source for ground state and metastable noble gas atoms in the eV translational energy range

Journal of Physics E Scientific Instruments ◽

10.1088/0022-3735/15/5/023 ◽

1982 ◽

Vol 15 (5) ◽

pp. 573-579 ◽

Cited By ~ 27

Author(s):

P G A Theuws ◽

H C W Beijerinck ◽

N F Verster ◽

D C Schram

Keyword(s):

Energy Range ◽

Hollow Cathode ◽

Ground State ◽

High Intensity ◽

Noble Gas ◽

Translational Energy ◽

Beam Source ◽

Cathode Arc

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A Spectroscopic Validation of the Improved Lennard–Jones Model

Molecules ◽

10.3390/molecules26133906 ◽

2021 ◽

Vol 26 (13) ◽

pp. 3906

Author(s):

Rhuiago Mendes de Oliveira ◽

Luiz Guilherme Machado de Macedo ◽

Thiago Ferreira da Cunha ◽

Fernando Pirani ◽

Ricardo Gargano

Keyword(s):

Ground State ◽

Experimental Finding ◽

Noble Gas ◽

Thermal Conditions ◽

Spectroscopic Constants ◽

Weakly Bound ◽

Potential Models ◽

Lennard Jones ◽

Diatomic Systems ◽

Correct Application

The Lennard–Jones (LJ) and Improved Lennard–Jones (ILJ) potential models have been deeply tested on the most accurate CCSD(T)/CBS electronic energies calculated for some weakly bound prototype systems. These results are important to plan the correct application of such models to systems at increasing complexity. CCSD(T)/CBS ground state electronic energies were determined for 21 diatomic systems composed by the combination of the noble gas atoms. These potentials were employed to calculate the rovibrational spectroscopic constants, and the results show that for 20 of the 21 pairs the ILJ predictions agree more effectively with the experimental data than those of the LJ model. The CCSD(T)/CBS energies were also used to determine the β parameter of the ILJ form, related to the softness/hardness of the interacting partners and controlling the shape of the potential well. This information supports the experimental finding that suggests the adoption of β≈9 for most of the systems involving noble gas atoms. The He-Ne and He-Ar molecules have a lifetime of less than 1ps in the 200–500 K temperature range, indicating that they are not considered stable under thermal conditions of gaseous bulks. Furthermore, the controversy concerning the presence of a “virtual” or a “real” vibrational state in the He2 molecule is discussed.

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