{"knowledge_schema": {"broad_category": "Chemistry \u2192 Organic Chemistry \u2192 NMR Spectroscopy", "refinement": "This problem involves interpreting NMR spectra to deduce structural information about organic compounds, specifically focusing on the connectivity of protons in a molecule.", "specific_scope": "The task is to analyze the 1H NMR data of a major product derived from a reaction involving a dicarboxylic acid anhydride and a cyclopentadiene derivative, identifying which two resonances are connected by a cross-peak in a 2D NOESY spectrum.", "goal": "Determine the pair of resonances in the major product's 1H NMR spectrum that are correlated through NOE, indicating spatial proximity."}, "summary": "This problem requires understanding NMR spectroscopy, particularly the interpretation of 1H and 2D NOESY spectra to identify spatial relationships between protons in a molecule. The major product from the reaction of a dicarboxylic acid anhydride and a cyclopentadiene derivative shows a cross-peak in its NOESY spectrum, indicating that two specific proton resonances are in close proximity. The goal is to select the correct pair of resonances from the provided candidates that are connected by this cross-peak."}