[{"from": "human", "value": "Could you provide a description of this molecule? [O].[O].[O].[O].[O].[O].[O-1][S][=Branch1][C][=O][=Branch1][C][=O][O-1].[Ni+2]"}, {"from": "gpt", "value": "The molecule appears as blue or emerald-green crystalline material. Toxic and carcinogenic. Two known phases. Alpha-form (blue tetragonal) converts to beta-form (green monoclinic) at 127.9 \u00b0F. Becomes blue and opaque at room temperature. Odorless. Sweet astringent taste. Somewhat efflorescent. Greenish-yellow anhydrous salt is formed at 536 \u00b0F. "}]