[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a phosphorodiamide."}, {"from": "gpt", "value": "[C][N][Branch1][C][C][P][=Branch1][C][=O][Branch1][=Branch1][N][Branch1][C][C][C][O][P][=Branch1][C][=O][Branch1][=Branch1][N][Branch1][C][C][C][N][Branch1][C][C][C]"}]