{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 Spectroscopy and Structure Elucidation", "refinement": "This problem involves analyzing spectral data (FTIR and NMR) to deduce the structure and molecular formula of an organic compound.", "specific_scope": "The task is to interpret the spectral data of a di-substituted aromatic compound to identify its chemical formula from a given set of options.", "goal": "Determine the correct molecular formula of the compound based on the provided spectral information."}, "summary": "In this problem, we analyze the FTIR and 1H NMR spectra of a di-substituted aromatic compound to deduce its chemical formula. The presence of an ester group is indicated by FTIR, while the NMR spectrum reveals six distinct signals corresponding to aromatic protons, vinyl protons, and methyl groups, with no signals for methylene groups. By interpreting this data, we conclude that the correct molecular formula of the compound is C11H12O2."}