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Volumn 47, Issue 17, 2008, Pages 7745-7750

Hydration of hydrogentungstate anions at different pH conditions: A car-parrinello molecular dynamics study

Author keywords

[No Author keywords available]

Indexed keywords


EID: 51849161834     PISSN: 00201669     EISSN: None     Source Type: Journal    
DOI: 10.1021/ic8007766     Document Type: Article
Times cited : (29)

References (47)
  • 2
    • 51849134822 scopus 로고    scopus 로고
    • on Polyoxometalates
    • Hill, C. L. Chem. Rev. 1998, 98, 1. Special issue on Polyoxometalates.
    • (1998) Chem. Rev , vol.98 , Issue.1 . SPECIAL ISSUE
    • Hill, C.L.1
  • 27
    • 34548263247 scopus 로고    scopus 로고
    • ADF, Vrije Universiteit: Amsterdam, The Netherlands
    • ADF 2004.01; Department of Theoretical Chemistry, Vrije Universiteit: Amsterdam, The Netherlands, 2004.
    • (2004) 01; Department of Theoretical Chemistry
  • 38
    • 51849111330 scopus 로고
    • CPMD;, Armonk, NY, MPI für Festkörperforschung: Stuttgart, Germany, 2001 2006
    • CPMD; IBM Corp.: Armonk, NY, 1990-2006; MPI für Festkörperforschung: Stuttgart, Germany, 1997-2001.
    • (1990) IBM Corp
  • 43
    • 51849121397 scopus 로고    scopus 로고
    • In all of the metadynamics runs that we have performed, we have chosen as the collective variable the distance between the WVI ion and the O atom of a nearby water molecule. We have done one simulation for each of the following processes: (i) WO3(OH, H2O → [WO3(OH)(H2O, The parameters used in this run are k, 0.2 au and M, 10 amu. The height of the hills (W) is 0.31 kcal mol-1, their perpendicular width (Δs⊥) 0.1, and the deposition rate (Δt) 0.0144 ps. The estimated error (ε) in the computation of the free energy is 1 kcal mol-1. The total simulation time (ttotal) was 9 ps, ii, WO3(OH)(H 2O, → WO3OH, H 2O. k, 0.2 au, M, 10 amu, W, 0.19 kcal mol -1, Δs⊥, 0.1
    • total = 5 ps.
  • 44
    • 51849122304 scopus 로고    scopus 로고
    • Different metadynamics runs were performed. One for each of the following processes: (i) WO2(OH)2, H2O → [WO 2(OH)2(H2O, Same parameters as those for the previous metadynamics, except W, 0.19 kcal mol-1 and ttotal, 25 ps, ii, WO2(OH)2(H 2O, → WO2(OH)2, H2O. Same parameters as those for (i, except ttotal, 17 ps, iii, WO2(OH)2(H2O, H2O → [WO2(OH)2(H2O)2, Same parameters as those for (i, except ttotal, 9 ps, iv, WO 2(OH)2(H2O)2] → [WO 2(OH)2(H2O, H2O. Same parameters as those for i, except W, 0.25 kcal mol-1 and t total, 6 ps
    • total = 6 ps.
  • 45
    • 51849142104 scopus 로고    scopus 로고
    • total = 5 ps.
    • total = 5 ps.


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