The calculated electron density is then used to compute atomic scattering factors, which take into account interatomic overlap. HAR has been shown to offer accurate determination of hydrogen atom positions in molecular crystals, 11 as well as transition metal complexes. Owing to its success, HAR has now been implemented in several packages, including Tonto, NoSpherA2, DiSCaMB 15 and XHARPy. With the recent introduction of fragmentation methods in HAR, 17 the method is no longer limited to structures containing discrete molecular fragments, but can be applied to extended covalent structures such as MOFs. This is complemented by the recently developed option of using periodic wave function calculations in HAR. In this work we present the application of fragmentation-based HAR approach, 17 as implemented in DiSCaMB, for the SC-XRD refinement of a polymorph of Zn(II)