Ara es mostren els items 37-49 de 49

    • Short range order of CCl4: RMC and MD methods 

      Silva-Santisteban López, Alvaro; Henao Aristizábal, Andrés; Pothoczki, Szilvia; Bermejo, F. Javier; Tamarit Mur, José Luis; Guàrdia Manuel, Elvira; Cuello, Gabriel Julio; Pardo Soto, Luis Carlos (Institute of Physics (IOP), 2014-01-08)
      Article
      Accés obert
      The main objective of this paper is to present a method to fully determine the six degrees of freedom regarding position and orientation of a neighboring molecule around a central one, i.e. the g(rCM,¿) distribution ...
    • Shortcomings of the standard Lennard-Jones dispersion term in water models, studied with force matching 

      Nicolini, Paolo; Guàrdia Manuel, Elvira; Masia, Marco (2013-11-14)
      Article
      Accés obert
      In this work, ab initio parametrization of water force field is used to get insights into the functional form of empirical potentials to properly model the physics underlying dispersion interactions. We exploited the force ...
    • Solvation structure and dynamics of the dimethylammonium cation diluted in liquid water: a molecular dynamics approach 

      Skarmoutsos, Ioannis; Guàrdia Manuel, Elvira (American Institute of Physics (AIP), 2020-06-21)
      Article
      Accés obert
      Classical molecular dynamics simulation techniques were employed to investigate the local solvation structure and related dynamics of the dimethylammonium cation diluted in liquid water at ambient conditions. The translational ...
    • Specific ion effects in aqueous eletrolyte solutions confined within graphene sheets at the nanometric scale 

      Sala Viñas, Jonàs; Guàrdia Manuel, Elvira; Martí Rabassa, Jordi (2012-08-14)
      Article
      Accés restringit per política de l'editorial
      The underlying mechanisms of specific ion effects on structure and dynamics of aqueous solutions have been long debated. On the other hand, the role of polarization at hydrophobic interfaces when aqueous electrolytes are ...
    • Structural and dipolar fluctuations in liquid water: a Car–Parrinello molecular dynamics study 

      Skarmoutsos, Ioannis; Masia, Marco; Guàrdia Manuel, Elvira (2016-03-16)
      Article
      Accés obert
      A Car–Parrinello molecular dynamics simulation was performed to investigate the local tetrahedral order, molecular dipole fluctuations and their interrelation with hydrogen bonding in liquid water. Water molecules were ...
    • Structure and dynamics of liquid ethanol 

      Saiz, L; Padro Cardenas, Joan Angel; Guàrdia Manuel, Elvira (1997-01)
      Article
      Accés restringit per política de l'editorial
      Molecular dynamics simulations of liquid ethanol at four thermodynamic states ranging from T = 173 K to T = 348 K were carried out using the transferable OPLS potential model of Jorgensen (J. Phys. Chem. 1986, 90, 1276). ...
    • Structure and dynamics of water plastic crystals from computer simulations 

      Henao Aristizábal, Andrés; Salazar Ríos, Jorge Mario; Guàrdia Manuel, Elvira; Pardo Soto, Luis Carlos (2021-03-14)
      Article
      Accés obert
      Water has a rich phase diagram with several crystals, as confirmed by experiments. High-pressure and high-temperature water is of interest for Earth’s mantle and exoplanetary investigations. It is in this region of the ...
    • Supercritical water confined in carbon nanochannels 

      Sala Viñas, Jonàs; Guàrdia Manuel, Elvira; Martí Rabassa, Jordi (11th European Meeting on Supercritical Fluids : reactions, materials and natural products processing, 2008-05-04)
      Capítol de llibre
      Accés restringit per política de l'editorial
      We report results of a series of molecular dynamics simulations of water inside a narrow graphite channel at supercritical conditions. A wide range of densities (0.08-0.66 gcm-3) at the supercritical temperature of 673 K ...
    • The effect of polymorphism on the structural, dynamic and dielectric properties of plastic crystal water: a molecular dynamics simulation perspective 

      Skarmoutsos, Ioannis; Mossa, Stefano; Guàrdia Manuel, Elvira (American Institute of Physics (AIP), 2019-03-28)
      Article
      Accés obert
      We have employed molecular dynamics simulations based on the TIP4P/2005 water model to investigate the local structural, dynamical, and dielectric properties of the two recently reported body-centered-cubic and face-centered-cubic ...
    • The force matching approach to multiscale simulations: merits, shortcomings, and future perspectives 

      Masia, Marco; Guàrdia Manuel, Elvira; Nicolini, Paolo (2014-08-15)
      Article
      Accés restringit per política de l'editorial
      Among the various approaches to multiscale simulations, in recent years, force matching has been known for a quick growth. The method is based on a least-square fit of reference properties obtained from simulations at a ...
    • The structure of liquid water beyond the first hydration shell 

      Henao Aristizábal, Andrés; Busch, Sebastian; Guàrdia Manuel, Elvira; Tamarit Mur, José Luis; Pardo Soto, Luis Carlos (2016-06-22)
      Article
      Accés obert
      To date there is a general consensus on the structure of the first coordination shells of liquid water, namely tetrahedral short range order of molecules. In contrast, little is known about the structure at longer distances ...
    • Using Car-Parrinello simulations and microscopic order descriptors to reveal two locally favored structures with distinct molecular dipole moments and dynamics in ambient liquid water 

      Skarmoutsos, Ioannis; Franzese, Giancarlo; Guàrdia Manuel, Elvira (2022-10-15)
      Article
      Accés restringit per política de l'editorial
      Water is essential for life and technological applications, mainly for its unique thermodynamic and dynamic properties, often anomalous or counterintuitive. These anomalies result from the hydrogen-bonds fluctuations, as ...
    • Water-water and ion-water hydrogen bonding in sulfuric acid solutions 

      Canales Gabriel, Manel; Guàrdia Manuel, Elvira (2019-11-01)
      Article
      Accés obert
      Molecular dynamics simulations of sulfuric acid solutions at room temperature and at concentrations up to 40¿wt% have been performed. The dissociation of the acid in water has been implicitly taken into account by assuming ...