Complexes trans-[MCl₂(NCNMe₂)₂] (M = Pt 1, Pd 2) were cocrystallized with CHBr₃ and CHI₃, forming 1:2 adducts isomorphic with previously reported trans-[PtCl₂(NCNMe₂)₂]·2CHI₃. In all cases, the C-X···M (X = Br, I; M = Pd, Pt) metal-involving halogen bonding together with numerous chloride-halomethane halogen and hydrogen bonds were identified by single-crystal XRD experiments. Further DFT calculations and topological analysis of the electron density distribution within the framework of QTAIM method at the M06/DZP-DKH level of theory confirmed the existence of these interactions and their noncovalent nature. Estimated energies of such contacts vary from 1.6 to 3.1 kcal/mol.