[{"from": "human", "value": "Generate a molecule based on the given description. The molecule is an organometallic compound of nickel. Its volatility at room temperature and toxicity have earned the compound the nickname liquid death. This pale-yellow liquid is the principal carbonyl of nickel. It is an intermediate in the Mond process for the purification of nickel and a reagent in organometallic chemistry. Nickel carbonyl is one of the most toxic substances encountered in industrial processes.Nickel is a chemical compound with the atomic number 28. It is found abundantly in nature in laterite ore minerals, such as limonite, garnierite, and pentlandite. Nickel has a biological role and is found in certain enzymes, including urease, hydrogenase, methylcoenzyme M reductase, and carbon monoxide dehydrogenase. (L40, L41, L508)"}, {"from": "gpt", "value": "[C-1][#O+1].[C-1][#O+1].[C-1][#O+1].[C-1][#O+1].[Ni]"}]