[{"from": "human", "value": "Provide a brief overview of this molecule. [Br-1].[Br-1].[Sn+2]"}, {"from": "gpt", "value": "The molecule is a bromide of tin. Tin is a chemical element with the symbol Sn and atomic number 50. It is a natural component of the earth's crust and is obtained chiefly from the mineral cassiterite, where it occurs as tin dioxide. Bromine is a halogen element with the symbol Br and atomic number 35. Diatomic bromine does not occur naturally, but bromine salts can be found in crustal rock. (L625, L307, L309)"}]