Some observations on märkl's cyclic phosphonium salt synthesis. The synthesis of a phosphocane

Märkl's cyclic phosphonium salt synthesis was studied and some mechanistic conclusions drawn. The reaction was found to be generally applicable to the synthesis of C-methylated five-, six-, seven- and eight-membered ring systems. The first authenticated synthesis of a phosphocane is reported.     

Simulation study of stopping power and damage profiles of H/He plasma irradiation in tungsten and its alloys for fusion power plant

Journal of Radioanalytical and Nuclear Chemistry - Tungsten (W) plays a crucial role in the lifetime of the plasma-facing components of DEMO. In order to avoid oxidation, W-based alloys have been...     

Completion of the first phase of development of the European UV/VUV free-electron laser at Elettra

The Swiss Light Source, located at the Paul Scherrer Institut, is a third-generation synchrotron light source characterized by its exceptional stability and continuous top-up mode of operation. With a storage ring energy of 2.4 GeV, it provides photon beams of high brightness for research in materials science, biology and chemistry.     

Fragmentation Reactions of Bridged Heterocyclic Phosphorus Compounds as a Source of Low-Coordination Species

Abstract

Several types of unsaturated, bridged structures have been prepared that can undergo retro-cycloaddition with the extrusion of phosphorus species having low coordination. By this technique, the species RO-PO₂, R-PO₂, R₂N-P=S, RO-P=S, and R-P=CH₂ have been generated and detected by trapping experiments.     

Kinetic simulation of oxidative dehydrogenation of n-butenes over SnO2?Sb2O4 catalysts

A previously suggested reaction mechanism was utilized to evaluate a kinetic model for the oxidation of n-butenes over ShSb=31 mixed oxide catalyst. With this model, kinetic curves measured at 673 K were simulated, illustrating the changes of amounts of undetectable surface components, too.

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- SnSb=31 . , 673 K, .