The complexes trans-[PtCl₂(NCNR₂)₂] (R₂ = Me₂ 1, Et₂ 2, (CH₂)₄ 3) were cocrystallized with CBr₄ in CHCl₃ (1 and 3) or in MeNO₂ (2) forming adducts 1·CHCl₃·CBr₄, 2·2CBr₄, and 3·2CBr₄, respectively. In two out of three adducts, viz. 1·CHCl₃·CBr₄ and 2·2CBr₄, unique Br₃C-Br⋯η²(Cl-Pt) metal-involving bifurcated halogen bonding was detected, by single-crystal XRD, along with other halomethane-chloride interactions. Appropriate density functional theory calculations performed by two complementary methodologies, (i) single-point "quasi-solid state" calculations with topological analysis of the electron density distribution within the framework of Bader theory (QTAIM method) and (ii) Kohn-Sham calculations with periodic boundary conditions, confirmed the existence of the bifurcated interactions and their noncovalent nature. Estimated energies of these interactions vary from 1.1 to 4.7 kcal/mol.