scholarly journals Set of Molecular Models Based on Quantum Mechanical Ab Initio Calculations and Thermodynamic Data

2008 ◽  
Vol 112 (40) ◽  
pp. 12710-12721 ◽  
Author(s):  
Bernhard Eckl ◽  
Jadran Vrabec ◽  
Hans Hasse
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Thermodynamic Data ◽  
Quantum Mechanical ◽  
Molecular Models

scholarly journals Regio-Selectivity Prediction with a Machine-Learned Reaction Representation and On-the-Fly Quantum Mechanical Descriptors

2020 ◽  
Author(s):  
Yanfei Guan ◽  
Connor Coley ◽  
Haoyang wu ◽  
Duminda Ranasinghe ◽  
esther heid ◽  
...  
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Organic Molecules ◽  
New Method ◽  
Quantum Mechanical ◽  
Substitution Reactions ◽  
Reactivity Descriptor ◽  
Constrained Model

<div> <div> <div> <p>We introduce a new method that combines machine-learned reaction representation with selected quantum mechanical descriptors to predict regio-selectivity in general substitution reactions. We construct a reactivity descriptor database based on ab initio calculations of 130k organic molecules, and train a multi-task constrained model to calculate demanded descriptors on-the-fly. </p> </div> </div> </div>

Choice of Computational Techniques and Molecular Models for ab Initio Calculations Pertaining to Solid Silicates

1994 ◽  
Vol 98 (48) ◽  
pp. 12545-12557 ◽  
Author(s):  
Brian J. Teppen ◽  
David M. Miller ◽  
Susan Q. Newton ◽  
Lothar Schafer
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Computational Techniques ◽  
Molecular Models

Ab initio calculations of the quantum mechanical hydrogen exchange coupling in the [(C5H5)Ir(PH3)H3]+ complex

1993 ◽  
Vol 115 (13) ◽  
pp. 5861-5862 ◽  
Author(s):  
Abdellah Jarid ◽  
Miquel Moreno ◽  
Agusti Lledos ◽  
Jose M. Lluch ◽  
Juan Bertran
Keyword(s):  
Ab Initio Calculations ◽  
Ab Initio ◽  
Exchange Coupling ◽  
Hydrogen Exchange ◽  
Quantum Mechanical

Quantum mechanical tunnelling in the processes D + H2 → DH + H and CH4 + H → CH3 + H2. Eckart's tunnelling corrections for rate constants given by ab initio calculations

1979 ◽  
Vol 44 (12) ◽  
pp. 3452-3457 ◽  
Author(s):  
Petr Čársky
Keyword(s):  
Transition State ◽  
Ab Initio Calculations ◽  
Ab Initio ◽  
Rate Constants ◽  
Transition State Theory ◽  
State Theory ◽  
Quantum Mechanical ◽  
Rate Data ◽  
Dimensional Approach ◽  
One Dimensional

Results of the best reported ab initio calculations are used to evaluate the rate constants of the title processes by means of the transition state theory. The computed rate constants are corrected for the quantum mechanical tunnelling by the Eckart's one-dimensional approach and comparison is made with experimental rate data

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