[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an inorganic sodium salt comprising separate sodium cations and square planar [PtCl4](2-) anions. It contains a tetrachloroplatinate(2-)."}, {"from": "gpt", "value": "[Na+1].[Na+1].[Cl][Pt-2][Branch1][C][Cl][Branch1][C][Cl][Cl]"}]