Determination of the Binding Energies in Aromatic Clusters: Resonance-Enhanced Multi-Photon Ionization and Mass Analyzed Threshold Ionization Investigation of the Dichlorobenzene–Argon Complexes

2009 ◽  
Vol 15 (2) ◽  
pp. 349-359 ◽  
Author(s):  
Angela Gaber ◽  
Mikko Riese ◽  
Frank Witte ◽  
Jürgen Grotemeyer
Keyword(s):  
Ground State ◽  
Theoretical Calculations ◽  
Argon Atom ◽  
Binding Energies ◽  
Van Der Waals Complexes ◽  
Threshold Ionization ◽  
Aromatic Clusters ◽  
Photon Ionization ◽  
Neutral Ground

Resonance-enhanced multi-photon ionization (REMPI) and mass-analyzed threshold ionization (MATI) spectroscopic investigations were applied to the van der Waals complexes of the three dichlorobenzene isomers with argon. From the REMPI spectra it is concluded that the argon atom is shifted towards the chlorine atoms during excitation for the ortho and the meta isomers while it stays in the middle of the ring for the para isomer. From the MATI spectra it was possible to determine the binding energies in the ion ground state to 617 cm−1 ± 15 cm−1, 529 cm−1 ± 125 cm−1 and 581 cm−1 ± 76 cm−1 for the para, the meta and the ortho isomer, respectively. Together with theoretical calculations binding energies in the neutral ground state were determined to be 426 cm−1 ± 16 cm−1 for all the three isomers.

Analysis of the 1A′ S1 ← 1A′ S0 and 2A′ D0 ← 1A′ S1 band systems in 1,2-dichloro-4-fluorobenzene by means of resonance-enhanced-multi-photon-ionization (REMPI) and mass-analyzed-threshold-ionization (MATI) spectroscopy

2016 ◽  
Vol 18 (10) ◽  
pp. 7100-7113 ◽  
Author(s):  
Sascha Krüger ◽  
Jürgen Grotemeyer
Keyword(s):  
Ground State ◽  
Vibrational Structure ◽  
Threshold Ionization ◽  
Photon Ionization ◽  
Mati Spectroscopy

REMPI and MATI spectroscopy have been applied in order to investigate the vibrational structure of 1,2-dichloro-4-fluorobenzene (1,2,4-DCFB), in its first excited (S1) and cationic ground state (D0).

Investigation of the complex vibronic structure in the first excited and ionic ground state of 3-chloropyridine by means of REMPI and MATI spectroscopy and Franck-Condon analysis

2021 ◽  
Author(s):  
Niklas Helle ◽  
Tim Raeker ◽  
Jürgen Grotemeyer
Keyword(s):  
Ground State ◽  
Vibronic Structure ◽  
Threshold Ionization ◽  
Chlorine Substitution ◽  
Photon Ionization ◽  
Mati Spectroscopy ◽  
Franck Condon

3-Chloropyridine (3-CP) has been investigated by means of resonance-enhanced multi photon ionization (REMPI) and mass-analyzed threshold ionization (MATI) spectroscopy to elucidate the effect of m-chlorine substitution on the vibronic structure...

Ground State of Quasi-Two-Dimensional Electron–Hole Liquid on Silicon Surface

2020 ◽  
Vol 19 (06) ◽  
pp. 2050008
Author(s):  
Alexander A. Vasilchenko
Keyword(s):  
Ground State ◽  
Density Functional ◽  
Binding Energies ◽  
Silicon Surfaces ◽  
Two Dimensional ◽  
Dimensional Electron ◽  
Electron Hole ◽  
Functional Theory ◽  
The Density Functional Theory

The density functional theory is used for the determination of a ground state of a quasi-two-dimensional electron[Formula: see text]hole liquid (EHL) in the presence of an external electric field. The Kohn[Formula: see text]Sham equations for electrons and holes are numerically solved. The binding energies of electron[Formula: see text]hole pair are calculated for various silicon surfaces. It is shown that EHL can exist on the (111) Si.

PROPERTIES OF THE SUPERHEAVY NUCLEUS 294118 AND ITS α-DECAY CHAIN IN THE RELATIVISTIC MEAN FIELD THEORY

2008 ◽  
Vol 17 (07) ◽  
pp. 1309-1317
Author(s):  
FANG ZHOU ◽  
JIAN-YOU GUO
Keyword(s):  
Experimental Data ◽  
Ground State ◽  
Theoretical Calculations ◽  
Superheavy Nucleus ◽  
Mean Field ◽  
Decay Chain ◽  
Binding Energies ◽  
Superheavy Nuclei ◽  
Α Decay ◽  
Relativistic Mean Field

The superheavy nucleus 294118 and its α-decay chain have been investigated systematically in the relativistic mean-field (RMF) theory with the interactions NL3, TMA, PK1 and NLZ. The properties of ground state have been described well with the binding energies per nucleon and α-decay energies, which are reproduced as compared with the experimental data. It shows that the RMF theory is effective for studying not only the stable nuclei but also the superheavy nuclei presented here. In particular, the prolate shape predicted in the ground state of these superheavy nuclei is in agreement with the experimental data as well as other theoretical calculations.

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