Li3InCl6 crystallizes in the monoclinic space group C2/m, with lattice parameters a = 6.41008 (17) Å, b = 11.0782(3) Å, c = 6.3833(2) Å and ß = 109.7807(2) °, consistent with previously reports 8 . Layer-like structures with a honeycomb arrangement, such as Li3InCl6, are known to exhibit stacking faults. Rietveld analysis (see Figure ) reveals a misfit due to significant anisotropic broadening of specific reflections, including (020), ( ), ( ), (021), and (111), indicating the presence of stacking faults . Additionally, a broad triangularshaped increase in "background" intensity underneath this group of reflections at low diffraction angles is typically associated with stacking faults . While this feature has been reported in previous studies, it is not observed in the present measurements, likely due to the use of a different radiation wavelength or its correlation with reflections of the airtight sample holder.