Oxidative photosynthetic water cleavage into molecular oxygen and four protons occurs via a sequence of redox steps that are energetically driven by the strongly oxidizing cation radical P +. . This species formed as a result of light-induced charge separation in Photosystem II becomes reduced by Y Z thus generating ox Z Y that in turn oxidizes stepwise the catalytic site of the water-oxidizing...
A Pd(II)-catalyzed homo-coupling of Au(I)-aryls is reported. The reaction is driven by a Pd(0)/Au(I) redox reaction that generates a gold mirror and Pd(II), and illustrates one of the challenges for developing dual catalytic Au-Pd systems.
