where in Text 1 for the 13 C NMR, each entry shows the chemical shift (δ) in parts per million (ppm), followed by the number of equivalent carbons and the multiplicity. For example, "73.9 (1C, s)" indicates one carbon atom with a chemical shift of 73.9 ppm appearing as a singlet. The notation is similar for 1 H NMR but includes more detailed splitting patterns. For instance, "7.35 (tt, J = 7.4, 1.3 Hz)" describes a triplet of triplets centered at 7.35 ppm with coupling constants of 7.4 and 1.3 Hz. The coupling constants represent the interaction between magnetic moments of neighboring nuclei, influencing the splitting of NMR signals. This notation helps chemists interpret the molecular structure based on the NMR spectral data. It's important to note that this NMR data is predicted, and as such, the multiplicity information is theoretical and may appear overly complicated compared to experimental spectra, where some of these couplings might not be resolved or observable.