{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Spectroscopy and Structure Elucidation", "refinement": "This problem involves interpreting spectroscopic data (FTIR and NMR) to deduce the structure and molecular formula of an organic compound.", "specific_scope": "The task is to analyze the provided spectral data to identify the correct molecular formula from a list of candidates based on the presence of functional groups and the number of hydrogen signals.", "goal": "Determine the correct chemical formula of the synthesized compound based on the spectral data provided."}, "summary": "In this problem, we analyze the spectroscopic data of a di-substituted 6-membered aromatic ring compound to identify its chemical formula. The FTIR spectrum indicates a ketone group, while the 1H NMR spectrum reveals five signals, suggesting specific hydrogen environments. The absence of \u2013CH2 signals and the presence of two \u2013CH3 groups help narrow down the options. By interpreting the data, we conclude that the correct molecular formula is C11H12O."}