{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Spectroscopy", "refinement": "This problem involves interpreting 1H NMR (proton 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 four possible candidates.", "goal": "Determine which of the four given compounds corresponds to the provided 1H NMR data."}, "summary": "This problem requires the interpretation of 1H NMR data to identify an unknown organic compound. The NMR spectrum provides information about the chemical environment of protons in the molecule, including their chemical shifts, splitting patterns, and integration. By analyzing these features, we can distinguish between the four candidates: Cis-propenyl acetate, Trans-propenyl acetate, Cis-butenyl acetate, and Trans-butenyl acetate. The goal is to match the observed NMR data with the expected patterns for each candidate to identify the correct compound."}