File Name : figure_s1.png Caption : relative values of the eda components obtained by bending the ru–n–o angles of 1, 2 and 5–12. color code: δδe_int (blue), δδv_elstat (red), δδe_pauli (green) and δδe_oi (purple). File Name : figure_s2.png Caption : selected density deformation channels, δρ_1–3, for the interacting fragments: i) [rul_cis(nh₃)₄]²⁺ – no⁺ (3, 7 and 11); and ii) [rul_cis(nh₃)₄]⁺ – no⁰ (4, 8 and 12). red and blue regions indicate the electronic density outflow and inflow, respectively. chosen contour values: *=0.001; ¶=0.003; §=0.005 a.u. File Name : figure_s3.png Caption : topological map containing the bond paths (continuous or dashed lines connecting the cores) and bond critical points (small green points) for the structures studied in this paper. atoms color code: h (white), c (gray), n (blue), o (red) and ru (turquoise).