Three neutral photoproducts are observed - hydrogen atoms, hydrogen molecules, and water. Keywords: conical intersections; hydration; multireference calculations; water clusters; water splitting EN conical intersections hydration multireference calculations water clusters water splitting 16273 16273 1 12/01/21 20211125 NES 211125 B More complex than expected b : Photochemical hydrogen evolution in Al SP + sp (H SB 2 sb O) SB I n i sb involves conical intersections, multiple intersystem crossings between singlet and triplet surfaces, and electron transfer. Cover Feature: Photochemical Hydrogen Evolution at Metal Centers Probed with Hydrated Aluminium Cations, Al+(H2O)n, n=1-10 (Chem. Eur. J. 66/2021). [Extracted from the article]