[{"from": "human", "value": "Write solar cell solar cell VOC of given SMILES as a p-type polymer and PC71BM or PCBM. ->  O=C1C2=C(C=C(CCCCCC)C(CCCCCC)=C2)C(C3=C(C)SC(C4=CC5=C(C(OCC(CCCC)CC)=C(C=C(C)S6)C6=C5OCC(CCCC)CC)S4)=C31)=O\n"}, {"from": "gpt", "value": " 1.81\n"}]