Sizing up a supercharged ferryl

Highly selective synthesis of surface Fe IV =O with nanoscale zero-valent iron and chlorite for efficient oxygen transfer reactions

“…Iron is the element of nature’s choice for catalyzing a wide variety of reduction, oxidation, and atom transfer reactions, with the kinetic feasibility or specificity that is difficult or impossible to reproduce artificially under ambient conditions ( 1 ). Iron-based enzymes, such as Rieske dioxygenase and cytochrome P450, afford selective C=C or C–H bond activation in the course of xenobiotic degradation and metabolites synthesis ( 2 – 5 ). At the core of these transformations is the formation of high-valent iron-oxo species (Fe IV =O) with a low-lying unoccupied antibonding orbital that enables the transfer of its terminal oxo moiety to substrates bearing lone-pair electrons ( 6 – 8 ).…”

Editorial overview: Five observations about tradition and progress in the scientific study of political ideologies

“…There is also the related matter of cognitive and perceptual rigidity. Earlier research by Zmigrod, Rentfrow, and Robbins [ 25 ] demonstrated that politically conservative Brits (and supporters of Brexit) exhibited higher levels of cognitive rigidity on various politically neutral tasks, in comparison with liberal Brits (and opponents of Brexit). Zmigrod (this issue) reports that on some behavioral tasks cognitive rigidity increases with ideological extremity on the left as well as the right.…”