[{"from": "human", "value": "Design a molecule that meets the criteria outlined in the description. The molecule appears as black-purple crystals or black solid. Sublimes at 104 \u00b0F and 0.1 mmHg. "}, {"from": "gpt", "value": "[CH1-1][C][=C][C][=C][Ring1][Branch1].[CH1-1][C][=C][C][=C][Ring1][Branch1].[Co+2]"}]