ChemInform Abstract: QUANTUM AND STATISTICAL STUDIES OF LIQUIDS. 1. AN INTERMOLECULAR POTENTIAL FUNCTION FOR THE HYDROGEN FLUORIDE DIMER FROM AB INITIO 6-31G COMPUTATIONS

1978 ◽  
Vol 9 (45) ◽  
Author(s):  
W. L. JORGENSEN ◽  
M. E. COURNOYER
1986 ◽  
Vol 30 (5) ◽  
pp. 663-670 ◽  
Author(s):  
A. Gonzàlez-Lafont ◽  
J. M. Lluch ◽  
A. Oliva ◽  
J. Bertrán

1990 ◽  
Vol 45 (2) ◽  
pp. 184-188
Author(s):  
Saiful Islam ◽  
E. H. S. Anwander ◽  
M. M. Probst ◽  
B. M. Rode

AbstractAn analytical pair potential function for the system Cu(II)-water has been derived by means of ab initio calculation of the corresponding energy surface, using double zeta + polarization basis sets and effective core potentials. Tests on the function show that it should be reliable for use in Monte Carlo or molecular dynamics simulations.


1990 ◽  
Vol 45 (11-12) ◽  
pp. 1303-1308
Author(s):  
R. T. Kroemer ◽  
Y. Michopoulos ◽  
B. M. Rode

AbstractAn intermolecular pair potential function for Cu2+-NH3 has been derived based on ab-initio calculations with a ECP-DZV basis set. For copper the original ECP-DZV basis set was modified in order to avoid unwanted charge-transfer effects. The final potential function including anisotropic terms was constructed from a total of 679 configurations.


1991 ◽  
Vol 46 (1-2) ◽  
pp. 32-38 ◽  
Author(s):  
Yanos Michopoulos ◽  
Peter Botschwina ◽  
Bernd M. Rode

AbstractThe derivation of an intermolecular potential function for the interaction of two hydroxylamine molecules, based on ab initio SCF-ECP calculations is reported. Ab initio values were compared for selected geometries with those obtained from calculations with much larger basis sets, inluding electron correlation effects by the CEPA method. A total 658 energy values were then fitted to an analytic sum of atom-atom isotropic pair potential functions, whose functional form was given a simple electrostatic interpretation. The major difficulties, arising from the relatively low values of the stabilisation energies of the system and the numerous possibilities to form hydrogen bonds, were overcome by a careful selection of sufficient points on the potential hypersurface, introduction of cut-offs and weight factors. The obtained function was seen to be able to give a good reproduction of the interaction energies and proved suitable in a preliminary MC simulation


1987 ◽  
Vol 42 (8) ◽  
pp. 871-874 ◽  
Author(s):  
Vithaya W. Ruangpornvisuti ◽  
Michael M. Probst ◽  
Bernd M. Rode

An intermolecular potential function for the magnesium complex of 1,4,7,10-tetraazacyclododecane (cyclen) and water has been derived from ab initio molecular orbital calculations. The form of this interaction function is obtained by fitting 250 points of the calculated energy surface.


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