Figure 6. (a) Definition of six moieties for the adsorbed *NxHy on various TM2@sitex (x = 1, 2, 3, 4) systems. (b)-(h) charge variation of the six moieties for Mn2@site1, Ru2@site1, Co2@site2, W2@site2, Os2@site3, V2@site4, and Cr2@site4, respectively.