Table 5 The 5 best distance-spectral graphical invariants.

From: Predictive potential of distance-related spectral graphical descriptors for structure-property modeling of thermodynamic properties of polycyclic hydrocarbons with applications

Graphical invariant

Placement

\(En_H\), Eq. (11)

1

\(Es_{GA^2}\), Eq. (31)

2

\(En_{GA^2}\), Eq. (30)

3

\(En_{DD}\), Eq. (20)

4

\(Es_{ABC^2}\), Eq. (28)

5

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