3-D bond-paths of QTAIM and the stress tensor in neutral lithium clusters, Lim (m = 2–5), presented on the Ehrenfest force molecular graph

Top left: Ehrenfest Force F(r) ∇ρ(r)·σ(r) trajectory map for Li4. Top right: The {qFA,qFA′} path-packets are presented on the F(r) molecular graph. Bottom left and right: The {qF,qF′} and {qσHF,qσHF′} path-packets, using QTAIM on the F(r) molecular graph, the green circles indicate (BCPs).