code: @Override
      public void setMoleculeSet(IAtomContainerSet setOfMolecules) {
          if (this.setOfMolecules != null) this.setOfMolecules.removeListener(this);
          this.setOfMolecules = setOfMolecules;
          if (this.setOfMolecules != null) this.setOfMolecules.addListener(this);
          notifyChanged();
      }
docs: Sets the MoleculeSet of this ChemModel.
  
  @param   setOfMolecules  the content of this model
  
  @see      #getMoleculeSet