[{"from": "human", "value": "Given SMILES, write its solar cell solar cell maximum value of power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC1=CC(SC2=C3C(C4=CC=C(OCCCCCCCC)C=C4)(C5=CC=C(OCCCCCCCC)C=C5)C6=C2C=C(C(C7=CC=C(OCCCCCCCC)C=C7)(C8=CC=C(OCCCCCCCC)C=C8)C9=C%10SC%11=C9SC(C%12=C(C(N(CCCCCCCC)C%13=O)=O)C%13=C(C)S%12)=C%11)C%10=C6)=C3S1\n"}, {"from": "gpt", "value": " 4.3\n"}]