[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule is a light green to steel-blue powder. Acquires a greenish-brown tint under exposure to sunlight. "}, {"from": "gpt", "value": "[C][=C][C][=C][C][=Branch1][Ring2][=C][Ring1][=Branch1][N][C][=C][C][=C][C][=C][Ring1][=Branch1][S][Ring1][O]"}]