{"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 based on its spectral characteristics.", "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 by interpreting the provided 1H NMR data."}, "summary": "This problem requires the application of organic chemistry principles, specifically the interpretation of 1H NMR spectroscopy data, to identify an unknown compound. The NMR data provides information about the chemical environment of hydrogen atoms in the molecule, including their chemical shifts and splitting patterns. By analyzing these characteristics, the goal is to determine which of the four candidate compounds (Cis-propenyl acetate, Trans-propenyl acetate, Cis-butenyl acetate, or Trans-butenyl acetate) corresponds to the given NMR data. The correct identification in this case is Trans-propenyl acetate."}