The CD spectra of the MBA and ClMBA are different, and the dichroism of the latter is in general greater than that of MBA. Since the chirality is transferred from the organic ligand to the inorganic framework, it may be possible that the intrinsic extent of the CD response of the chiral amine impacts the overall chiroptical properties of the metal halide. It is clear, however, that more data are needed to reach a definite conclusion about the parameters affecting the chiral properties of organic-inorganic metal halides, and this work represents a further piece of useful information about copper-based systems.