On the hydration of the beryllium ion
A molecular dynamics simulation of a 1.1 molal aqueous solution of BeCl2 with a newly developed three-body potential for the Be2+H2O interactions has been performed. A strongly pronounced first hydration shell has been found with a hydration number of four, in agreement with experimental data. The existence of a second hydration shell is demonstrated. The relationship between hydration number and ion size is discussed.
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