Comment on mr-2025-15

<strong class="journal-contentHeaderColor">Abstract.</strong> A correlation between the symmetry of NMR spectra, including higher-order spectra, and the properties of the spin system has been established. It is shown that for a spectrum to be symmetric about the mid-resonance frequency (&nu;₀), two conditions must be satisfied: the resonant frequencies of the spins must be symmetrically positioned about &nu;₀, and the <em>J‑</em>coupling matrix must be symmetric about the secondary diagonal. The results were validated by calculating theoretical spectra for 3-, 4-, 5-, and 6-spin systems.