Boron (B) ionization energies of shallow energy levels, beta-rhombohedral boron

2005 ◽  
pp. 1-2
Author(s):  
Keyword(s):  
Energy Levels ◽  
Ionization Energies ◽  
Rhombohedral Boron

scholarly journals The high-energy band in the photoelectron spectrum of alkanes and its dependence on molecular structure

1999 ◽  
Vol 64 (11) ◽  
pp. 673-680 ◽  
Author(s):  
Ivan Gutman ◽  
Viktorija Gineityte ◽  
Mirko Lepovic ◽  
Miroslav Petrovic
Keyword(s):  
Molecular Structure ◽  
Energy Band ◽  
Photoelectron Spectrum ◽  
Line Graph ◽  
Energy Levels ◽  
Molecular Graph ◽  
High Energy ◽  
Saturated Hydrocarbons ◽  
Ionization Energies ◽  
Laplacian Eigenvalues

In the model for the ionization energies of the C2s-electrons in saturated hydrocarbons, put forward by Heilbronner et al., the energy levels are calculated as eigenvalues of the line graph of the hydrogen-filled molecular graph. It is now shown that in the case of alkanes, these energy levels are related to the Laplacian eigenvalues of the molecular graph. A few rules are formulated, relating these ionization energies with molecular structure.

Photoelectron Spectroscopy of Heterocycles. Fluorene Analogues

1978 ◽  
Vol 33 (9) ◽  
pp. 1006-1012 ◽  
Author(s):  
B. Ruščić ◽  
B. Kovač ◽  
L. Klasinc ◽  
H. Güsten
Keyword(s):  
Linear Correlation ◽  
Photoelectron Spectroscopy ◽  
Energy Levels ◽  
Photoelectron Spectra ◽  
Orbital Interaction ◽  
Ionization Energies

The He(I) photoelectron spectra of fluorene and its analogues, biphenyl, dibenzofuran, carbazole, dibenzothiophene, and phenanthrene were measured and analyzed. The assignment of the π-electron ionizations using orbital interaction and symmetry arguments for the constituent parts of the molecules indicates that the energy levels of the fluorene analogues can be reproduced within a few percent of error. A close linear correlation between the π-ionization energies and the eigenvalues of the corresponding HMO-orbitals is obtained as well.

Energy levels for the stable isotopes of atomic helium(4He I and 3He I)

2006 ◽  
Vol 84 (2) ◽  
pp. 83-105 ◽  
Author(s):  
Donald C Morton ◽  
Qixue Wu ◽  
G WF Drake
Keyword(s):  
Stable Isotopes ◽  
Ab Initio ◽  
Ionization Potential ◽  
Energy Levels ◽  
Laboratory Data ◽  
Ionization Energies ◽  
Isotope Shifts ◽  
Magnetic Perturbations ◽  
Atomic Helium

We calculate very accurate ab initio ionization energies for both 4He I and 3He I as well as the isotope shifts for n = 1 to 10, L = 0 to 7 and combined these with precise laboratory data to produce a new table of levels for 4He I and the first table for 3He I. We adopted an experimental ionization potential of 5945 204 290 ± 33 MHz for 4He I and derived 5944 890 770 ± 33 MHz for 3He I. Additional calculations of the magnetic perturbations of 3He I provide the hyperfine levels, which compare favourably with the available measurements.PACS Nos.: 31.30.Gs, 31.30.Jv

scholarly journals The atomic structure of chemical elements in the theory of compressible oscillating ether

2021 ◽  
Vol 2090 (1) ◽  
pp. 012039
Author(s):  
Nikolai Magnitskii
Keyword(s):  
Experimental Data ◽  
Atomic Structure ◽  
Chemical Elements ◽  
Energy Levels ◽  
Elementary Particles ◽  
Gravitation Theory ◽  
Quantum Mechanical ◽  
Ionization Energies ◽  
Atomic Nuclei ◽  
Equations Of Electrodynamics

Abstract Previously, the basic laws and equations of electrodynamics, atomic nuclei, elementary particles theory and gravitation theory were derived from the equations of compressible oscillating ether. In this work, the theory of atomic structure for all chemical elements is constructed. A formula for the values of the energy levels of the electrons of an atom, which are the values of the energies of binding of electrons with the nucleus of an atom in the ground unexcited state, is derived from the equations of the ether. Based on experimental data on the ionization energies of atoms and ions, it is shown that the sequence of values of the energy levels of electrons has jumps, exactly corresponding to the periods of the table of chemical elements. It is concluded that it is precisely these jumps, and not quantum-mechanical rules, prohibitions and postulates that determine the periodicity of the properties of chemical elements. Ethereal correction of the table of chemical elements is presented which returns it to the form proposed by D.I. Mendeleev.

Testing of QED theory on the Rydberg series for the He-like multicharged ions

2002 ◽  
Vol 80 (11) ◽  
pp. 1255-1261 ◽  
Author(s):  
V G Pal'chikov ◽  
I Yu. Skobelev ◽  
A Ya. Faenov
Keyword(s):  
Quantum Electrodynamic ◽  
Ground State ◽  
Energy Levels ◽  
Rydberg States ◽  
Expansion Method ◽  
Isoelectronic Sequence ◽  
Rydberg Series ◽  
Ionization Energies ◽  
Relativistic Corrections ◽  
Bound Electrons

The paper examines the 1/Z expansion method in calculating the energy levels, ionization energies, and wavelengths of the resonant Rydberg states 1snp 1P1 for atoms belonging to the helium isoelectronic sequence. The interactions of the bound electrons are treated as a perturbation that results in the electron–electron Breit interaction, relativistic corrections, and quantum electrodynamic (QED) contributions. By comparing the calculated wavelengths with a number of observed wavelengths, the QED contributions to the ground state are analyzed. PACS Nos.: 31.20Di, 31.20Tz, 31.30Jv, 31.50+W

Sign in / Sign up

Export Citation Format

Share Document