[{"from": "human", "value": "Create a molecule that satisfies the conditions outlined in the description. The molecule is the trichloride salt of ytterbium(III). It has a role as a NMR shift reagent. It contains a ytterbium(3+)."}, {"from": "gpt", "value": "[Cl-1].[Cl-1].[Cl-1].[Yb+3]"}]