Eccentric Connectivity Index of t-Polyacenic Nanotubes

Figure 1

The polyacene molecules. (a) L1: Benzene; (b) L2: Naphthalene; (c) L3: Anthracene; (d) L4: Tetracene; (e) L5: Pentacene; (f) L6: Hexacene; (g) L7: Heptacene.

(a)

(b)

(c)

(d)

(e)

(f)

(g)