Ab initio investigation of the ground and excited states of RuO+,0,− and their reaction with water

2020 ◽  
Vol 22 (28) ◽  
pp. 16072-16079 ◽  
Author(s):  
Isuru R. Ariyarathna ◽  
Nuno M. S. Almeida ◽  
Evangelos Miliordos
Keyword(s):  
Electronic Structure ◽  
Ab Initio ◽  
Quantum Chemical Calculations ◽  
Excited States ◽  
Quantum Chemical ◽  
Electronic States ◽  
Reaction With Water ◽  
High Level

High-level quantum chemical calculations reveal the electronic structure of low-lying electronic states of RuO0,±, and that the anion can activate the OH bond of water more readily.

Ab initio investigation of the ground and excited states of MoO+,2+,− and their catalytic strength on water activation

2018 ◽  
Vol 20 (17) ◽  
pp. 12278-12287 ◽  
Author(s):  
Isuru R. Ariyarathna ◽  
Evangelos Miliordos
Keyword(s):  
Ab Initio ◽  
Excited States ◽  
Quantum Chemical ◽  
Molybdenum Oxides ◽  
Water Activation ◽  
Reaction With Water ◽  
High Level

Ground and excited states of the titled molybdenum oxides and their reaction with water were studied with high level quantum chemical methodologies.

Low-energy excited states of divanadium: a matrix isolation and MRCI study

2016 ◽  
Vol 18 (21) ◽  
pp. 14667-14677 ◽  
Author(s):  
Olaf Hübner ◽  
Hans-Jörg Himmel
Keyword(s):  
Quantum Chemical Calculations ◽  
Excited States ◽  
Configuration Interaction ◽  
Quantum Chemical ◽  
Matrix Isolation ◽  
Electronic States ◽  
Low Energy ◽  
Excited Electronic States ◽  
Complete Active Space ◽  
Self Consistent

The ground and excited electronic states of the vanadium dimer (V2) have been studied using Ne matrix isolation experiments and quantum chemical calculations (multireference configuration interaction based on complete active space self-consistent orbitals).

scholarly journals Theoretical Simulation of the Zeke Spectra of Naphthalene From Single Vibronic Levels of S1

1999 ◽  
Vol 19 (1-4) ◽  
pp. 105-108 ◽  
Author(s):  
Fabrizia Negri ◽  
Marek Z. Zgierski
Keyword(s):  
Ab Initio ◽  
Quantum Chemical Calculations ◽  
Ground State ◽  
Quantum Chemical ◽  
Electronic States ◽  
Perturbative Expansion ◽  
Molecular Structures ◽  
Theoretical Simulation ◽  
Vibronic States ◽  
Semi Empirical

We present the simulations and analysis of the two-color ZEKE spectra of naphthalene, performed with the help of quantum chemical calculations of molecular parameters followed by the modelling of vibronic intensities. Ab initio and semi-empirical calculations were carried out to obtain molecular structures of neutral and ionic naphthalene, and vibronic perturbations that couple the electronic states. It is shown that the intensities, simulated with a model based on the perturbative expansion of vibronic states, nicely reproduce the observed spectra and contribute to reassign some of the ground state frequencies of naphthalene cation.

Ab initio and DFT analysis of the low-lying electronic states of metal dihalides: quantum chemical calculations on the neutral BrMCl (M = Cu, Ag, Au)

2013 ◽  
Vol 15 (25) ◽  
pp. 10151
Author(s):  
Michiko Atsumi ◽  
Roland Lindh ◽  
Leticia González ◽  
Christophe Gourlaouen ◽  
Chantal Daniel
Keyword(s):  
Ab Initio ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Electronic States ◽  
Ab Initio And Dft

Quantum chemical calculations on NbO and its reaction with methane: ground and excited electronic states

2019 ◽  
Vol 21 (48) ◽  
pp. 26324-26332 ◽  
Author(s):  
Emily E. Claveau ◽  
Evangelos Miliordos
Keyword(s):  
Quantum Chemical Calculations ◽  
High Spin ◽  
Quantum Chemical ◽  
Electronic States ◽  
Radical Mechanism ◽  
Excited Electronic States ◽  
High Level

Our high-level calculations show that high-spin NbO electronic states facilitate the methane to methanol transformation via a very efficient radical mechanism, as opposed to the [2+2] mechanism observed for the rest of the low-lying states.

COMPARISON OF PHOTOELECTRON SPECTRA OF ${\rm Cu}_n^-$, ${\rm Ag}_n^-$, AND ${\rm Na}_n^-$: MOLECULAR ORBITALS VERSUS ELECTRONIC SHELLS

1996 ◽  
Vol 03 (01) ◽  
pp. 399-403 ◽  
Author(s):  
G. GANTEFÖR ◽  
H. HANDSCHUH ◽  
H. MÖLLER ◽  
CHIA-YEN CHA ◽  
P.S. BECHTHOLD ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Shell Model ◽  
Quantum Chemical Calculations ◽  
Quantum Chemical ◽  
Electronic States ◽  
Molecular Orbitals ◽  
Photoelectron Spectra

The photoelectron spectra of [Formula: see text] clusters are compared to the results of quantmn-chemical ab-initio calculations (n=2-9) and to the predictions of the shell model. The shell model yields qualitative assignments of the dominant features in the spectra to photoemission from occupied electronic shells. These correspond to the exact quantitative assignments to transitions into various electronic states of the neutral clusters according to the quantum-chemical calculations. The photoelectron spectra of [Formula: see text] and [Formula: see text] clusters exhibit certain similarities to the Ag data in agreement with the basic idea of the shell model.

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