Hi,
I'm working on Single Electron Transistor (SET) using ATK. while performing the calculation of benzene SET i observed some charging energies (Ionization energy and Electron affinity) are negative. ionization energy can be defined as the cost of removing an electron from the molecule and Electron affinity is the energy gained through adding an additional electron.
But my doubt is what does the negative ionization potential and electron affinity indicate.
Please clarify my doubt if u r aware of it, its a long sanding doubt of mine.
Thank You advance and thankyou for reading this post.