Monte Carlo simulation of an 18.45 mol% aqueous ammonia solution

Author(s):  
Yukitoshi Tanabe ◽  
Bernd M. Rode
1991 ◽  
Vol 46 (1-2) ◽  
pp. 111-116 ◽  
Author(s):  
Suchada Kheawsrikul ◽  
Supot V. Hannongbua ◽  
Bernd M. Rode

AbstractA Monte Carlo simulation has been performed for a magnesium ion in 18.45 mol% aqueous ammonia solution at 20 °C, using additive pairwise potential functions obtained from ab-initio calculations. The structural arrangement of the solvent molecules in the vicinity of the ion is discussed in terms of radial distribution functions and average molecular orientations. It was found that the first solvation shell of the ion consists of four water and three ammonia molecules, and the second shell of nine water and five ammonia molecules.


2010 ◽  
Vol 7 (1) ◽  
pp. 38-42
Author(s):  
Cahyorini Kusumawardani ◽  
Sukisman Purtadi ◽  
Crys Fajar Partana ◽  
Harno Dwi Pranowo ◽  
Mudasir Mudasir

A Monte Carlo simulation was performed for Co2+ in 18.6 % aqueous ammonia solution at a temperature of 293.16 K, using ab initio pair potentials and three-body potentials for Co-H2O-H2O, Co-NH3-NH3 and Co-H2O-NH3 interactions. The first solvation shell consists average of 2.9 water and 3.2 ammonia molecules, and the second shell of 10.4 water and 11.2 ammonia molecules. The structure of the solvated ion is discussed in terms of radial distribution functions, angular distributions and coordination number.   Keywords: Molecular simulation, Monte Carlo simulation, solvation, ab initio


2010 ◽  
Vol 4 (5) ◽  
pp. 729-738 ◽  
Author(s):  
Feng Qin ◽  
Shujuan Wang ◽  
Ardi Hartono ◽  
Hallvard F. Svendsen ◽  
Changhe Chen

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