# Larger molecules have smaller HOMO-LUMO Gaps?

1. ### Hyo X

79
Is it true that in general, larger molecules will have smaller HOMO-LUMO gaps?

In this case consider that we are comparing long vs short saturated molecules,
and long vs. short conjugated molecules.

2. ### DrDu

4,448
If it were true in general, there wouldn't be any insulators.