La catalana, bronce mundial en Ruanda, conquista su primer título continental en categoría sub-23; la navarra, vigente maillot arcoíris júnior, encadena su segundo triunfo continental tras la contrarreloj del miércoles

The outbreak has killed four people and spread to 15 states, with officials linking it to frozen pasta meals sold at Walmart and Kroger.

We describe the synthesis and isolation of a phosphinidene telluride. This species acts as a versatile phosphinidene transfer reagent accompanied by the extrusion of elemental tellurium.

In contrast to transition elements, s- and p-block metal compounds that coordinate carbon monoxide (CO) under near-ambient conditions are elusive. Here, we report an isolable, crystalline main-group m...

A biomimetic model for the cysteine dioxygenase (CDO) was found to be also capable of selectively dioxygenating selenocysteamine, suggesting that the lack of reactivity found for the CDO in combinati....

Aryl and alkyl chlorides are inexpensive and readily accessible, making them ideal reagents for converting white phosphorus (P4) into primary phosphines RPH2. However, methods for achieving this…

Nature Chemistry - Chemical energy conversion and storage rely on the selective movement of protons and electrons, thus understanding these processes is important for applications. Now experiments...

Sequential [2+2] cycloaddition reactions between acetylene and the digallene and diindene compounds (ETer)2 (E = Ga, In; Ter = 2,6-Dipp2-C6H3; Dipp = 2,6-diisopropylphenyl) are described. Careful con...

The presence of unpaired electrons, i.e., radicals, equips organic molecules with unique magnetic and reactivity properties. However, due to the reactive nature of radicals and the nontrivial chemistry required for their preparation, strict structural and electronic limitations are imposed on the available systems, limiting their potential applications. Thus, developing mechanisms that enable facile radical formation in simple reaction conditions, employing available and inexpensive reactants and applicable to general types of molecules, holds the key to capitalize on the extraordinary properties that radicals have to offer. Here, combining electron paramagnetic resonance spectroscopy and ab initio calculations, we uncover an unprecedented single electron transfer from multiple anionic organic bases (B–X+) to nitrobenzene [1], leading to the formation of stable nitrobenzenide radical ion-pair [1•–][X+] (X = Li, Na, K) and transient oxidized, radical bases B•. Our results establish nitroarenes as versatile radical precursors, providing a broadly applicable protocol for generating heteroatom-centered radicals and enabling radical transformations under mild conditions from inexpensive and readily available starting materials. Finally, we propose the [1]–[B–X+] couple as an unexplored platform with the potential to advance the field of frustrated radical pairs.