Hydrozones and their metal complexes exhibit subtle redistribution of electron density as a function of substitution, type of the metal center and intermolecular interactions. We are going to analyze (and correlate) the point and integrated properties of experimental electron density distribution as well as intermolecular interaction energy in crystals of the studied compounds in the context of their antitumor activity. To achieve this goal we need reliable neutron-diffraction-derived H-atom positions and ADPs. Therefore, we apply for a series of 3 measurements on SXD beamline at 100 K. Moreover, the obtained neutron-diffraction results can supplement the database of neutron measurements used to estimate the average ADPs for H-atoms in specific functional groups. This approach is now becoming very popular in multipolar refinements in the absence of real neutron data.