[{"from": "human", "value": "What can you tell me about this molecule? [Br][La][Branch1][C][Br][Br]"}, {"from": "gpt", "value": "The molecule is a chemical compound of lanthanum and bromine. Cerium activated lanthanum bromide is used in scintillation detector. 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, L655)"}]