[{"from": "human", "value": "Given SMILES, write its band gap at room temperature and atmospheric pressure. ->  CC1=CC2=C(C(OCC(CCCC)CC)=C(C=C(C3=C4C(C(N(CCCCCCCC)C4=O)=O)=C(C)S3)S5)C5=C2OCC(CC)CCCC)S1\n"}, {"from": "gpt", "value": " 1.85\n"}]