# BioSimSpace.Solvent.tip3p¶

BioSimSpace.Solvent.tip3p(molecule=None, box=None, shell=None, ion_conc=0, is_neutral=True, work_dir=None, property_map={})

Parameters
• molecule (Molecule, System) – A molecule, or system of molecules.

• box ([Length]) – A list containing the box size in each dimension.

• shell (Length <BioSimSpace.Types.Length>) – Thickness of the water shell around the solute. Note that the base length of the resulting box must be at least twice as large as the cutoff used by the chosen molecular dynamics engine. As such, the shell option is often unsuitable for small molecules.

• ion_conc (float) – The ion concentration in (mol per litre).

• is_neutral (bool) – Whether to neutralise the system.

• work_dir (str) – The working directory for the process.

• property_map (dict) – A dictionary that maps system “properties” to their user defined values. This allows the user to refer to properties with their own naming scheme, e.g. { “charge” : “my-charge” }

Returns

system – The solvated molecular system.

Return type

System`