Just checking, this experiment *confirms* that there's a lone electron inside the cubane cage? - "At very low temperatures (77K, matrix isolation) in an ESR ap

Just checking, this experiment *confirms* that there's a lone electron inside the cubane cage? - "At very low temperatures (77K, matrix isolation) in an ESR apparatus, though, you can indeed see the spectrum of the predicted "electron in a cube", split just the way that you would have drawn it out." (It's written for an audience who doesn't need to be reminded that "ESR" means Electron Spin Resonance, and that is not me!)