Zobrazeno 1 - 10
of 66
pro vyhledávání: '"Ryan P. A. Bettens"'
Autor:
John F. Ouyang, Ryan P. A. Bettens
Publikováno v:
CHIMIA, Vol 69, Iss 3 (2015)
The first attempt to describe water dates back to 1933 with the Bernal–Fowler model and it would take another forty years before the first computer simulation of liquid water by Barker and Watts in 1969. Since then, over a hundred different water m
Externí odkaz:
https://doaj.org/article/fe8f07f1c30245d9b775604dc261e35f
Publikováno v:
Chemical Papers. 77:47-61
Publikováno v:
Computational and Theoretical Chemistry. 1201:113267
The higher impact sensitivity of many energetic materials has become one of the major obstacles which diminishes its wide range of applications in various fields. Salt formation is an effective approach that enhances the stability of the molecules to
Autor:
Haina Wang, Ryan P. A. Bettens
Publikováno v:
Physical chemistry chemical physics : PCCP. 21(8)
The potential energy surface (PES) of a chemical system is an analytical function that outputs the potential energy of the system when a nuclear configuration is given as input. The PESs of small atmospheric clusters have theoretical as well as envir
Autor:
Ryan P. A. Bettens, John F. Ouyang
Publikováno v:
Journal of Chemical Theory and Computation. 12:5860-5867
Many-body effects are required for an accurate description of both structure and dynamics of large chemical systems. However, there are numerous such interactions to consider, and it is not obvious which ones are significant. We provide a general and
Publikováno v:
Journal of Chemical Theory and Computation. 10:3699-3707
Longstanding conventional wisdom dictates that the widely used Many-Body Expansion (MBE) converges rapidly by the four-body term when applied to large chemical systems. We have found, however, that this is not true for calculations using many common,
Publikováno v:
Chemical Physics Letters. 555:247-251
The CH 3 + + H 2 → CH 5 + + h ν radiative associative reaction plays a major role in the synthesis of complex hydrocarbons in interstellar dust clouds and was studied using a part-classical, part- ab initio approach. A first-principles potential e
Publikováno v:
Chemical Physics Letters. 524:90-95
In this work, we study the hydration free energies of butane, zwitterionic alanine, valine, serine, threonine, and asparagine, and two neuraminidase inhibitors by means of Monte Carlo (MC) simulation. The solute molecule, represented in the form of d
Autor:
Ryan P. A. Bettens, Adrian M. Lee
Publikováno v:
Chemical Physics Letters. 449:341-346
In the energy-based fragmentation approach to computing the interaction energy between two molecules many interaction energies between small fragment molecules are required. Tens of thousands of these interactions are required if one of the molecules
Autor:
Ryan P. A. Bettens, Adrian M. Lee
Publikováno v:
The Journal of Physical Chemistry A. 111:5111-5115
The nuclear magnetic shielding tensor is a molecular property that can be computed from first principles. In this work we show that by utilizing the fragmentation approach, one is able to accurately compute this property for a large class of molecule