Ab Initio Study of Pd Carbonyls and CO/Pd(110)

1994 ◽  
Vol 344 ◽  
Author(s):  
R. Ramprasad ◽  
K. M. Glassford ◽  
J. B. Adams
Keyword(s):  
Plane Wave ◽  
Quantum Chemistry ◽  
Ab Initio ◽  
Ab Initio Study ◽  
Carbonyl Clusters ◽  
Standard Quantum ◽  
The Future

AbstractWe have performed ab initio studies to understand the electronic and geometric aspects of the Pd-CO bond in small carbonyl clusters and the CO covered (2 × 1)p2mg superstructure of the Pd(110) surface. We have used the standard quantum chemistry package Gaussian to study the former system and an LDA formalism using ab initio pseudopotentials and a plane wave basis to study the latter. The latter results are preliminary; we intend to study thicker slabs in the future.

Ab Initio Complex Potential Energy Surfaces From Standard Quantum Chemistry Packages

2017 ◽  
pp. 321-346 ◽  
Author(s):  
Arie Landau ◽  
Debarati Bhattacharya ◽  
Idan Haritan ◽  
Anael Ben-Asher ◽  
Nimrod Moiseyev
Keyword(s):  
Potential Energy ◽  
Quantum Chemistry ◽  
Ab Initio ◽  
Complex Potential ◽  
Potential Energy Surfaces ◽  
Standard Quantum ◽  
Energy Surfaces

Laser cooling of BH and GaF: insights from an ab initio study

2015 ◽  
Vol 17 (16) ◽  
pp. 10830-10837 ◽  
Author(s):  
Yu-feng Gao ◽  
Tao Gao
Keyword(s):  
Quantum Chemistry ◽  
Ab Initio ◽  
Laser Cooling ◽  
Ab Initio Study

The feasibility of laser cooling BH and GaF is investigated usingab initioquantum chemistry.

An ab initio study of Se-reacted GaAs(0 0 1) surfaces

1998 ◽  
Vol 184-185 (1-2) ◽  
pp. 80-84 ◽  
Author(s):  
W Faschinger
Keyword(s):  
Ab Initio ◽  
Ab Initio Study

Carrier Transport in 2-D Materials: an Ab Initio Study

2019 ◽  
Author(s):  
Mathieu Luisier ◽  
Aron Szabo ◽  
Cedric Klinkert ◽  
Christian Stieger ◽  
Martin Rau ◽  
...  
Keyword(s):  
Ab Initio ◽  
Carrier Transport ◽  
Ab Initio Study

Ion solvation by dipolar aprotic solvents. An ab initio study

1987 ◽  
Vol 52 (1) ◽  
pp. 6-13 ◽  
Author(s):  
Petr Kyselka ◽  
Zdeněk Havlas ◽  
Ivo Sláma
Keyword(s):  
Ab Initio ◽  
Geometry Optimization ◽  
Molecular Structures ◽  
Dimethyl Sulphoxide ◽  
Ion Solvation ◽  
Interaction Energies ◽  
Ab Initio Study ◽  
Solvation Energies ◽  
Dipolar Aprotic Solvents ◽  
Complete Geometry Optimization

The paper deals with the solvation of Li+, Be2+, Na+, Mg2+, and Al3+ ions in dimethyl sulphoxide, dimethylformamide, acetonitrile, and water. The ab initio quantum chemical method was used to calculate the solvation energies, molecular structures, and charge distributions for the complexes water···ion, acetonitrile···ion, dimethyl sulphoxide···ion, and dimethylformamide···ion. The interaction energies were corrected for the superposition error. Complete geometry optimization was performed for the complex water···ion. Some generalizations are made on the basis of the results obtained.

Thermodynamic Data of Iodine Reactions Calculated by Quantum Chemistry. Training Set of Molecules

2008 ◽  
Vol 73 (10) ◽  
pp. 1340-1356 ◽  
Author(s):  
Katarína Mečiarová ◽  
Laurent Cantrel ◽  
Ivan Černušák
Keyword(s):  
Quantum Chemistry ◽  
Ab Initio ◽  
Thermodynamic Data ◽  
Theoretical Calculations ◽  
Reactor Core ◽  
Fission Products ◽  
Vapour Phase ◽  
Reactor Accident ◽  
Training Set ◽  
Coolant System

This paper focuses on the reactivity of iodine which is the most critical radioactive contaminant with potential short-term radiological consequences to the environment. The radiological risk assessments of 131I volatile fission products rely on studies of the vapour-phase chemical reactions proceeding in the reactor coolant system (RCS), whose function is transferring the energy from the reactor core to a secondary pressurised water line via the steam generator. Iodine is a fission product of major importance in any reactor accident because numerous volatile iodine species exist under reactor containment conditions. In this work, the comparison of the thermodynamic data obtained from the experimental measurements and theoretical calculations (approaching "chemical accuracy") is presented. Ab initio quantum chemistry methods, combined with a standard statistical-thermodynamical treatment and followed by inclusion of small energetic corrections (approximating full configuration interaction and spin-orbit effects) are used to calculate the spectroscopic and thermodynamic properties of molecules containing atoms H, O and I. The set of molecules and reactions serves as a benchmark for future studies. The results for this training set are compared with reference values coming from an established thermodynamic database. The computed results are promising enough to go on performing ab initio calculations in order to predict thermo-kinetic parameters of other reactions involving iodine-containing species.

An ab initio study of the structural and mechanical alterations of Ti-Nb alloys

2018 ◽  
Vol 124 (24) ◽  
pp. 245102 ◽  
Author(s):  
J. J. Gutiérrez Moreno ◽  
D. G. Papageorgiou ◽  
G. A. Evangelakis ◽  
Ch. E. Lekka
Keyword(s):  
Ab Initio ◽  
Ab Initio Study
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