{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Spectroscopy", "refinement": "This problem involves interpreting 1H NMR (Nuclear Magnetic Resonance) data to identify the structure of an organic compound.", "specific_scope": "The focus is on analyzing the chemical shifts, splitting patterns, and integration of the NMR signals to deduce the identity of the compound among given options.", "goal": "Determine the correct structure of the unknown organic compound based on the provided 1H NMR data."}, "summary": "This problem requires the interpretation of 1H NMR data to identify an unknown organic compound. The chemical shifts and splitting patterns provide clues about the structure, allowing us to differentiate between similar compounds. In this case, the analysis leads to the conclusion that the unknown compound is Trans-propenyl acetate, based on the specific NMR signals observed."}