[{"from": "human", "value": "Given SMILES, write its PDI at room temperature and atmospheric pressure. ->  CC1=CC=C(/C(C#N)=C/C2=CC=C(C3=CC=C4C(C=CC(C)=C4OCCCCCCCCCC)=C3OCCCCCCCCCC)S2)S1\n"}, {"from": "gpt", "value": " 1.46\n"}]