Photoinduced arylation of chloroarenes in flow: synthesis of unsymmetrical biaryls.

A photoflow method is presented for a radical-based coupling of unactivated arenes and aryl chlorides. The process proceeded smoothly at ambient temperature under metal-free conditions. Of note is that the reaction conditions are fine-tuned for chloroarenes with different electronic properties.

Mechanism and kinetics for both thermal and electrochemical reduction of N catalysed by Ru(0001) based on quantum mechanics.

The conversion of N to NH is an important industrial process that plays a vital role in sustaining the current human population. This chemical transformation relies heavily on the Haber-Bosch process (N thermal reduction, NTR), which requires enormous quantities of energy (2% of the world supply) and extreme conditions (200 atm and 500 °C). Alternatively, N can be reduced to NH through electrochemical means (NER), which may be a less energy intensive and lower-capital approach since the H atoms come from HO not H.

Exciplex Organic Light-Emitting Diodes with Nearly 20% External Quantum Efficiency: Effect of Intermolecular Steric Hindrance between the Donor and Acceptor Pair.

Exciplex emitters have emerged as an important class of thermally activated delayed fluorescence (TADF) materials for highly efficient OLEDs. A TADF exciplex emitter requires an intermolecular donor/acceptor pair. We have synthesized a bipolar donor-type material, DPSTPA, which was used to pair with known acceptor materials (2CzPN, 4CzIPN, or CzDBA).