[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is an iminium ion that is the cationic component of pyronin Y."}, {"from": "gpt", "value": "[C][N][Branch1][C][C][C][=C][C][=C][Branch1][Branch1][C][=C][Ring1][=Branch1][C][=C][C][=C][C][=Branch1][=Branch1][=N+1][Branch1][C][C][C][C][=C][Ring1][=Branch2][O][Ring1][#C]"}]