[{"from": "human", "value": "Synthesize a molecule that matches the given characteristics. The molecule appears as yellow crystals or yellowish green solid. "}, {"from": "gpt", "value": "[C][C][C][=C][C][C][C][=C][Ring1][Branch2].[C][C][C][=C][C][C][C][=C][Ring1][Branch2].[Ni]"}]