Fig. 5.
Proposed mechanism and kinetics for the photoisomerization of [Ru(bpy)2(pyESO)]2+. a Proposed photoisomerization mechanism with labels indicating electronic state and lifetime for each ground state and intermediate structure. Bold arrows indicate the basic mechanistic requirements required to describe the Ru and S edge data, including the necessity of MC excited states (Ru edge) and of two isomerization pathways (S edge), and the formation time for the O-bonded ground state. Insets show the major structural changes that accompany electronic transitions. b Time-dependent fractional population for each reaction intermediate