Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 114, Issue 18, Pages 7980-7988Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1364638
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The application of the method recently proposed by Wolf [J. Chem. Phys. 110, 8254 (1999)] for the evaluation of Coulombic energy in condensed state systems by spherically truncated, pairwise r(-1) summation is verified for liquid water and anhydrous and hydrated aluminosilicates. Criteria for the estimation of the optimum values for the truncation radius and the damping parameter are discussed. By several examples it is verified that the new method is computationally more efficient than the traditional Ewald summations. For the considered systems the performances of the new method are good, provided that the truncation radius and the damping parameter are carefully chosen. (C) 2001 American Institute of Physics.
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