Sciweavers

57 search results - page 1 / 12
» Performance of parallel TURBOMOLE for density functional cal...
Sort
View
JCC
2007
79views more  JCC 2007»
14 years 10 months ago
Interfacing Q-Chem and CHARMM to perform QM/MM reaction path calculations
Abstract: A hybrid quantum mechanical/molecular mechanical (QM/MM) potential energy function with HartreeFock, density functional theory (DFT), and post-HF (RIMP2, MP2, CCSD) capab...
H. Lee Woodcock III, Milan Hodoscek, Andrew T. B. ...
JCC
2008
67views more  JCC 2008»
14 years 10 months ago
Systematic investigation on the geometric dependence of the calculated nuclear magnetic shielding constants
: We perform a systematic examination on the dependence of the calculated nuclear magnetic shielding constants on the chosen geometry for a selective set of density functional meth...
Ying Zhang, Xin Xu, Yijing Yan
84
Voted
JCC
2007
151views more  JCC 2007»
14 years 10 months ago
New parallel algorithm for MP2 energy gradient calculations
Abstract: A new parallel algorithm has been developed for calculating the analytic energy derivatives of full accuracy second order Møller-Plesset perturbation theory (MP2). Its m...
Kazuya Ishimura, Peter Pulay, Shigeru Nagase
84
Voted
JCC
2008
131views more  JCC 2008»
14 years 10 months ago
An optimized initialization algorithm to ensure accuracy in quantum Monte Carlo calculations
: Quantum Monte Carlo (QMC) calculations require the generation of random electronic configurations with respect to a desired probability density, usually the square of the magnitu...
Daniel R. Fisher, David R. Kent IV, Michael T. Fel...