> “We’ve built a molecular-scale transistor ...

A co-author makes bolder claims. I guess in context, the meaning is different, more of a metaphor. And even though, diodes can form some logic gates (diode-logic).

> ... simple chemical changes within a molecule, can have a profound influence on the electronic structure of molecules, leading to different electrical properties.”

But what's really interesting is the size of 14 atoms in the core of the molecule. How does that compare to 14 nm feature-sizes of different FET-technologies?