Results 261 to 270 of about 1,194,003 (337)
A halogen bond-donor amino acid for organocatalysis in water.
Chemical Communications, 2018 G. Bergamaschi +7 more
semanticscholar +1 more source
One‐Pot Incorporation of Quantum Defects into Single‐Walled Carbon Nanotubes with Arylazo Sulfonates
Angewandte Chemie, EarlyView.We present a photochemical strategy to create complex aromatic quantum defects in carbon nanotubes using arylazo sulfonates. It provides access to brighter carbon nanotubes without purification and simpler biofunctionalization. Abstract Single‐walled carbon nanotubes (SWCNTs) consist of a carbon monolayer and fluoresce in the near‐infrared (NIR, 800 ...
Valeriia D. Andreeva +4 more
wiley +1 more source
Dispersion‐Enhanced Nitrogen‐Centered Photocatalysis of the Direct Hydrogen Atom Transfer
Angewandte Chemie, EarlyView.Nitrogen‐centered acridine photocatalysts for direct hydrogen atom transfer have been developed, leveraging dispersion interactions to enhance photocatalytic activity. This approach enables diverse functionalization reactions of strong C─H bonds even under cryogenic conditions and provides a new strategy for boosting the efficiency of direct HAT ...
Jiasong Zhang +16 more
wiley +1 more source
A Crystalline Mono‐Coordinate Indium(I)‐Phosphaalkenyl
Angewandte Chemie, EarlyView.The redox neutral carbometallation of a phospha‐alkyne using the dimeric indium(I) compound (InTer)2 is reported. This reaction affords a mono‐coordinate indium(I) compound that can reversibly extrude the phospha‐alkyne upon addition of a Lewis acid. Abstract The synthesis of the mono‐coordinate indium(I) compound In[C(Ad)═PTer] (Ad = 1‐adamantyl, Ter =
Álvaro García‐Romero +3 more
wiley +1 more source
Angewandte Chemie, EarlyView.Here, we report a breakthrough study in catalytic alkene isomerisation using crown ether‐supported alkali metal phosphides in which the activity increases sequentially and significantly as Group One is descended with Cs(18‐crown‐6)PPh2 (1Cs) performing best.
Felix Krämer +2 more
wiley +1 more source
Angewandte Chemie, EarlyView.Halogen substitution controls a conformational switch between a folded closed‐shell and a flat singlet‐diradical conformer in an air‐stable Thiele‐diradical. This conformational switch allows for near‐unity photoluminescence quantum yield with a large Stokes shift, solvatochromism, and a long‐lived excited state.
Matteo Bevilacqua +11 more
wiley +1 more source
Twist and Shine: The Impact of Halogen Substitution on Thiele Hydrocarbon's Optical Properties
Angewandte Chemie, EarlyView.Halogenation in Thiele hydrocarbons strongly influences structure and excited‐state dynamics. Depending on substitution, “boat” folded forms show large Stokes shifts and strong solvatochromism, while planar “butterfly” derivatives exhibit near‐unity photoluminescence yields.
Angela Punzi +11 more
wiley +1 more source
50 Years of Giese Reaction – a Personal View
Angewandte Chemie, EarlyView.The Giese‐Reaction celebrates its 50. Birthday, it is a cyclic radical chain reaction centered around C,C‐bond formation in a three component synthesis. This minireview speaks about the birth of the name‐reaction, explains how the complete understanding of its reaction mechanism stimulates new methods in organic synthesis, and why it can proceed in ...
Martin Spichty +4 more
wiley +1 more source