[{"from": "human", "value": "Use the given information to create a molecule that fulfills the desired purpose. The molecule appears as a straw colored fuming liquid with a pungent odor. Vapors irritate the eyes and mucous membranes. Corrosive to metals and tissue."}, {"from": "gpt", "value": "[C][=Branch1][#Branch1][=C][/C][=Branch1][C][=O][Cl][\\C][=Branch1][C][=O][Cl]"}]