Congratulations to Stephen (PhD), Ioanna (MSc), Ryan (MChem) and Tom (PhD) for all contributing to this project recently published in Chemical Science! The study, with collaborators from Warwick Physics and Vrijes Universiteit Brussel, explores the photoactivation of Ti-oxo clusters, with straightforward routes to isolating highly reducing mixed-valent Ti-oxo clusters via a 2-electron (not free radical) pathway. These are easily oxidised under O2, resulting in a peroxide cluster.