{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Compound Identification", "refinement": "This problem involves the use of spectroscopic techniques (FTIR, NMR, and Mass Spectrometry) to deduce the structure and formula of an organic compound.", "specific_scope": "The task is to analyze the provided spectral data to determine the correct chemical formula from a list of candidates based on the observed characteristics.", "goal": "Identify the correct chemical formula of the unknown compound based on the spectral data provided."}, "summary": "In this problem, we are tasked with identifying an unknown organic compound using FTIR, 1H NMR, and Mass Spectrometry data. The FTIR spectrum indicates the presence of functional groups, with a broad peak at 3000 cm\u207b\u00b9 suggesting O-H or N-H bonds, and strong peaks at 1700 and 1650 cm\u207b\u00b9 indicating carbonyl (C=O) groups. The 1H NMR spectrum shows vinyl-hydrogens, suggesting the presence of alkenes. The mass spectrum fragment at m/z = 45 could correspond to an acyl or alkyl fragment. Analyzing these data points, the most likely candidate for the unknown compound is C6H10O2, which fits the observed characteristics of having both carbonyl and vinyl groups."}