[{"from": "human", "value": "Write band gap of given SMILES at room temperature and atmospheric pressure. ->  CC1=CC2=C(C(C3=CC=C(CCCCCCCCCCCC)S3)=C(C=C(C4=C(CCCCCCCC)C=C(C5=CC(F)=C(C6=CC(CCCCCCCC)=C(C)S6)C7=NSN=C75)S4)S8)C8=C2C9=CC=C(CCCCCCCCCCCC)S9)S1\n"}, {"from": "gpt", "value": " 1.63\n"}]