This work provides a summary of the preparation, structure, reactivity, physicochemical properties, and main uses 1,2,5-thiadiazole 1,1-dioxides in chemistry material sciences. An overview all currently known structures containing 1,1-dioxide motif (including anions radical species) is provided according to Cambridge Structural Database search. The analysis bond lengths typical for neutral anio...

This paper presents the results of research on development a technology intended to process electric smelting dusts ilmenite concentrate with extraction silicon and titanium production products in form their dioxides. Dusts were processed for separation using ammonium fluoride method. The optimum conditions fluorination sublimation compounds from dust determined: temperature 260 °С, 6 h duratio...

The main impetus for our research is provided by the growing interest worldwide in ultra thin silicon dioxide on silicon based nano devices. The obvious need for better knowledge in the ultra thin gate silicon dioxides, is motivated both by interests in fundamental research and phenomenology as well as by interests in possible applications, which can be found with better fitting of experimental...

The cyclo-addition reaction of diazomethane with a,/3-unsaturated sulfones is described. Divinyl sulfone and phenyl vinyl sulfone give 1or 2-pyrazolines depending on the reaction conditions. cisand /rans-l,2-Bis(methylsulfonyl)ethene form pyrazolines, which on reaction with either triethylamine or excess of diazomethane lead to substituted pyrazoles. The addition of diazomethane to doüble bonds...