[{"from": "human", "value": "Given SMILES, write its solar cell maximum value of power conversion efficiency as a p-type polymer and PC71BM or PCBM. ->  CC(S1)=CC(CC(CCCC)CC)=C1C2=NC(S3)=C(S2)N=C3C4=C(C[C@@H](CCCC)CC)C=C(/C=C/C)S4\n"}, {"from": "gpt", "value": " 1.19\n"}]