[{"from": "human", "value": "Write PDI of given SMILES at room temperature and atmospheric pressure. ->  O=C1N(CCCCCCCC)C(C2=C(C)SC(C(S3)=CC4=C3C(CC[C@@H](CC)CCCC)=C5C(SC(C)=C5)=C4CCC(CC)CCCC)=C21)=O\n"}, {"from": "gpt", "value": " 2.4\n"}]