Comparison of the line widths and velocities of the molecules detected toward the G31.41 shock (from Table B.1 and from Paper IV) with those in the G31.41 core (from Table B.3; Papers I, II, III, and V). The species identified in the G31.41 shock are separated into two groups (see Sect. 3.4 for details): those directly related with the shock (blue dots), and those likely related with an extended PDR in the line of sight (green dots). The molecules detected in the core are indicated with orange dots. We only plot the molecules for which FWHM and v were left free in the fits.