Alexander von Humboldt

Parsons chameleon, Calumma parsonii, in Andasibe - Analamazaotra National Park, Madagascar Artush/Shutterstock Chameleons (Chamaeleonidae) are a family of unique lizards with unusual characteristics : rapidly extendable tongues, feet with two toes pointing fo…

The new decade brings with it scores of new exhibitions at museums across the Smithsonian Institution in Washington, D.C. and in New York City. Many continue to mark the centenary of women’s suffrage; others expand views from other cultures and traditions. The 150th anniversary of professional baseball brings a couple…

Small‐molecule semiconducting crystals are studied extensively due to their potential for (opto)electronic applications such as light‐emitting diodes, field‐effect transistors, and solar cells.1-8 Linear oligoacenes are an archetypical family of such organic crystals that serve as an excellent testbed to study intrinsic properties of π‐conjugated solids. This is due to their…

Introduction The oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) play a crucial role in renewable energy provision schemes, which are relevant for e.g., metalair batteries, fuel cells and electrolyzers.1 Many efforts have been made to dev…

Introduction Ionic liquids (ILs) carrying fluorinated alkyl chains, in the following called fluorinated ILs, represent an interesting class of ILs because they often exhibit unique properties such as high thermal and chemical stability, and high gas solubility. Moreover, they commonly show low surface tension and/or are chemically and biologically inert.1…

Introduction Noble metals, which are chemically inert in their bulk form, manifest unusual activities when the size is reduced to the nanoscale. Therefore, many noblemetalbased nanostructures have been extensively studied in the last few decades for various …

Organic solar cells (OSCs) have gained renewed interest with the emergence of nonfullerene acceptors (NFAs). Small molecule NFAs blended with donor polymers have rapidly advanced, reaching stateoftheart power conversion efficiencies above 16%1, 2 for single j…

Organic solar cells (OSCs) have gained renewed interest with the emergence of nonfullerene acceptors (NFAs). Small molecule NFAs blended with donor polymers have rapidly advanced, reaching stateoftheart power conversion efficiencies above 16%1, 2 for single j…

Organic solar cells (OSCs) have gained renewed interest with the emergence of nonfullerene acceptors (NFAs). Small molecule NFAs blended with donor polymers have rapidly advanced, reaching stateoftheart power conversion efficiencies above 16%1, 2 for single j…

Introduction Copper complexes attract significant interest because of their various applications as catalysts in organic transformations such as C−C/X bond formation and C−H bond activation reactions, and also for their involvement in biological oxidation and oxygenation processes.1, 2 These copper‐mediated reactions generally exploit oxidation state changes of the metal ion,…