In Bader analysis, paths on the critical network are called bond paths, and provide a unique (although not necessarily optimal ) definition of molecular bonds . The bond paths for benzene, evaluated using the algorithm given in section II F, are shown in Fig. . All bonds are recovered (one of which via the gap filling algorithm given in section II F), leading to the familiar hexagonal benzene bonding network. In Bader analysis, the critical points are known as bond critial points -the values of the electron density at these points are given in Tab. I alongside values calculated using existing methods that require ρ(r) at arbitrary r.