It is worth noting that the bond path, which is correlated with the λ3 eigenvalues of the e3eigenvector, does not take into consideration contrasts within λ2 and λ1 eigenvalues of thee2 ande1 eigenvectors. The bond-path framework set indicated by B = {p , q , r } will be used, which demonstrates the new QTAIM interpretation of the chemical bond. This viably implies that in the most well-known cases, a bond is comprised of three ‘linkages’; p , q, andr  associated with the e1 ,e2 , and e3 eigenvectors, individually. Subsequently, Scheme 1 clearly illustrates that the p parameter interprets eigenvector-following paths with lengths\(\mathbb{H=}\sum_{i=1}^{n-1}\left|\mathbf{q}_{i+1}-\mathbf{q}_{i}\right|\)whilst the q parameter interpret eigenvector-following paths with lengths\(\ \mathbb{H}^{\mathbf{*}}=\sum_{i=1}^{n-1}\left|\mathbf{p}_{i+1}-\mathbf{p}_{i}\right|\). The scaled e1 ore2 eigenvectors will sweep out alongside the extent of the bond-path, specified by thee3 eigenvector, between the two bonded nuclei that the bond-path interfaces, resulting ineigenvector-following paths with lengths H* or H. For shared-shell BCP s From the forms of p and q,we observed that within the constrain of the ellipticity ε ≈ 0 comparing to single bonds, as a result, we obtain thep i = q i =ri , the value of the lengths H and H* reaches its lowest point; the bond-path length (r ) BPL. In contrast, for double bonds which have higher values of the ellipticity ε, results show in values of H* and H >BPL. Moreover, H = H* if identical scaling factor εi is used in their equations since H* and H are defined by the distances swept out by the e1 ande2 tip path points respectively.