Table 1.

The theoretical and experimental results of HOMO, LUMO and energy gap of FTBC-Cn (n = 4, 6, 8, 12)

	FTBC-C4	FTBC-C6	FTBC-C8	FTBC-C12
Energy gap*, eV	2.41	2.43	2.44	2.49
HOMO†, ± 0.2 eV	−1.21	−1.19	−1.30	−1.28
LUMO†, ± 0.2 eV	1.18	1.22	1.15	1.16
Energy gap†, ± 0.4 eV	2.39	2.41	2.45	2.44

*Theoretical calculation results.

^†the experimental results obtained by STS with STM probe.