[{"from": "human", "value": "Could you provide a description of this molecule? [O-2].[O-2].[O-2].[O-2].[O-2].[Al+3].[Al+3].[Sr+2].[Sr+2]"}, {"from": "gpt", "value": "The molecule is a chemical compound of strontium and aluminum. When activated with a suitable dopant, it acts as a photoluminescent phosphor with long persistence of phosphorescence. Aluminum is the most abundant metal in the earth's crust and is always found combined with other elements such as oxygen, silicon, and fluorine.  (L739, L740, L787)"}]