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Fujita, Takatoshi*; Tanaka, Shigenori*; Fujiwara, Takayuki*; Kusa, Masaaki*; Mochizuki, Yuji*; Shiga, Motoyuki
Computational and Theoretical Chemistry, 997, p.7 - 13, 2012/10
We have performed ab initio path integral Monte Carlo simulations for water trimer (HO) system. The electron correlation effects have been taken into account up to the level of third-order Mller-Plesset (MP3) perturbation theory. Through comparisons of calculated geometrical properties of water trimer such as O-O distance, O-H-O angle, and torsional angle between O-H and O-O-O plane, the interplays among the nuclear quantum, thermal and electron correlation effects are analyzed quantitatively.
Fujita, Takatoshi*; Tanaka, Shigenori*; Fujiwara, Takayuki*; Kusa, Masaaki*; Mochizuki, Yuji*; Shiga, Motoyuki
Computational and Theoretical Chemistry, 997, p.7 - 13, 2012/10
Times Cited Count:9 Percentile:21.13(Chemistry, Physical)We have performed path integral Monte Carlo simulations for water trimer (HO) system. The electron correlation effects have been taken into account up to the level of third-order Moller-Plesset (MP3) perturbation theory. Through comparisons of calculated geometrical properties of water trimer such as O-O distance, O-H-O angle, and torsional angle between O-H and O-O-O plane, the interplays among the nuclear quantum, thermal and electron correlation effects are analyzed quantitatively.