[{"from": "human", "value": "Write solar cell solar cell open-circuit voltage of given SMILES as a p-type polymer and PC71BM or PCBM. ->  CC(S1)=CC=C1C2=C3C(C(N(CC(CC)CCCC)C3=O)=O)=C(C(S4)=CC=C4C(S5)=CC(C5=C6OCC(CCCC)CC)=C(OCC(CC)CCCC)C7=C6C=C(C)S7)C8=C2N=C(C9=CC(OCCCCCCCC)=CC=C9)C(C%10=CC=CC(OCCCCCCCC)=C%10)=N8\n"}, {"from": "gpt", "value": " 7.3\n"}]