[{"from": "human", "value": "Provide a brief overview of this molecule. [Be+2].[Cl-1].[Cl-1]"}, {"from": "gpt", "value": "The molecule is a chloride of beryllium. It is used as a catalyst in organic reactions.  Beryllium is a lightweight alkaline earth metal with the atomic number 4. It is a relatively rare element found naturally only combined with other elements in minerals. (L24, L475)"}]