Nitrogen-induced broadening and shift coefficients of rotation-vibrational lines in the fundamental and first overtone bands of HCl and HBr

► Broadening and shifts are measured in (1, 2 ← 0) bands of HBr and HCl diluted by N2. ► The red shift of the lines decreases for large J quantum numbers of HBr. ► No statistically meaningful isotope dependence in these parameters. ► No vibrational dependence of broadening coefficients in these bands.