Keywords: Photocatalysis / Electron transfer / Dihydrogen / Ligand design / MetalloviologensWe have designed and prepared a series of novel PNP pincer ligands based on N-methyl-4,4Ј-bipyridinium for the construction of stable complexes toward two steps of single electron transfer reactions, where p-quinoid-type complexes play a key role. Electrochemical studies reveal that two reduction waves of these complexes are similar to those of methylviol-
The cover picture shows the synthesis of novel “metalloviologens” bearing PNP pincer ligands based on N‐methyl‐4,4′‐bipyridinium. These complexes are stable toward two steps of single electron transfer, where p‐quinoid‐type complexes play a key role. The rhodium complex bearing the PNP pincer ligand based on N‐methyl‐4,4′‐bipyridinium is also found to work as a catalyst for dihydrogen production under photoinduced electron transfer conditions. Details are discussed in the article by Y. Miyake, Y. Nishibayashi et al. on . For more on the story behind the cover research, see the .
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.