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Transition states corresponding to the attack of the first and second water molecules (left and center, respectively) and the detachment of water (right). Distances between atoms are shown in angstroms. Distances corresponding to Cl, Br, and I are highlighted in yellow, pink, and green, respectively. Color scheme for atoms: Te (violet), Cl/Br/I (green), O (red), C (grey), and H (white).
