ALMA observations of CN and C₂H line emission from IM Lup. Left column: stacked, integrated spectra extracted from the whole radial extent of the disk, for each transition, obtained using GoFish. The corresponding hyperfine groups are indicated in the top left of each panel. Vertical lines mark the location of the central frequency for each hyperfine component within the spectral range. The channel spacing is 50 m s⁻¹, matching the native spectral resolution of the data. Right column: integrated intensity maps (moment 0).