[{"from": "human", "value": "Describe this molecule. [Zn][Branch1][C][Br][Br]"}, {"from": "gpt", "value": "The molecule is a bromide of zinc. It is used in organic chemistry as a lewis acid, as a transparent shield against radiation, and in the zinc bromide battery. Zinc is a metallic element with the atomic number 30. It is found in nature most often as the mineral sphalerite. Though excess zinc in harmful, in smaller amounts it is an essential element for life, as it is a cofactor for over 300 enzymes and is found in just as many transcription factors. 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, L48, L49, L542)"}]