[{"from": "human", "value": "Given SMILES, write its band gap at room temperature and atmospheric pressure. ->  O=C(C(CCCC)CC)C1=CC2=C(C)SC(C3=CC4=C(OCC(CCCC)CC)C(SC(C)=C5)=C5C(OCC(CCCC)CC)=C4S3)=C2S1\n"}, {"from": "gpt", "value": " 1.6\n"}]