Classical modelization of symmetry effects in the dense high-temperature electron gas

A Kramerslike classical pseudopotential which includes Diffraction and Symmetry effects is worked out for k_BT?1 Ry.     

Ecofriendly and efficient procedure for hetero-Michael addition reactions with an acidic ionic liquid as catalyst and reaction medium

Abstract  

1-Methylimidazolium trifluoroacetate ([Hmim]TFA) is reported as a cost-effective catalyst for a simple and environmentally benign hetero-Michael reaction. [Hmim]TFA works both as reaction medium and catalyst. The reaction is applicable to various aromatic sulfur and nitrogen nucleophiles. This method has advantages such as high yields, short reaction time, and simple workup. The catalyst could be recycled several times without any loss of activity.     

Catalyst-free synthesis of N-rich heterocycles via multi-component reactions

Efficient and straightforward methods for the synthesis of 5-substituted 1H-tetrazoles via multi-component reaction of α-dicarbonyl compounds, 2,3-diaminomaleonitrile and sodium azide without any catalyst has been reported. These general protocols provide a wide variety of N-rich heterocyclic compounds (1H-tetrazole-5-yl) pyrazines and di(1H-tetrazole-5-yl) pyrazines, in good to excellent yields.     

Highly efficient photocatalytic performance of dye-sensitized K-doped ZnO nanotapers synthesized by a facile one-step electrochemical method for quantitative hydrogen generation

Journal of Solid State Electrochemistry - The different morphologies of K-doped ZnO nanostructures were successfully synthesized by a facile one-step electrochemical method using control of the...     

Copper nanoparticles incorporated on a mesoporous carbon nitride,an excellent catalyst in the Huisgen 1,3‐dipolar cycloaddition and N‐arylation of N‐heterocycles

Cu nanoparticles with average particles size around 10 nm were incorporated on the surface of a mesoporous carbon nitride support. The XRD and N₂ adsorption isotherms show that it maintains a hexagonal mesoporous structure with a high surface area (600.03 m² g^?1). The embedded Cu nanoparticles exhibit extremely high catalytic performance in two different kinds of organic reactions. The Huisgen 1,3‐dipolar cycloaddition and N‐arylation of N‐heterocycles were all accomplished.