[{"from": "human", "value": "Given SMILES, write its band gap at room temperature and atmospheric pressure. ->  CC(S1)=CC2=C1C(C3=CC=C(CC(CC)CCCC)S3)=C(C=C(C4=CC=C(C5=C(OCC(CC)CCCC)C(OCC(CCCC)CC)=C(C6=CC=C(C)S6)C7=NSN=C75)S4)S8)C8=C2C9=CC=C(CC(CC)CCCC)S9\n"}, {"from": "gpt", "value": " 1.79\n"}]