High-Intensity-Laser–Matter Interactions: the Energy-Control System of the Pico Laser Facility

We consider the requirements of the energy-control system of the PICO laser facility and describe a design of the calorimeter based on the proposed method of laser-radiation-energy measurements using the calorimeter–sensor thermal response. We present the results of an experimental study of the calorimeter temporal parameters and dynamic analog memory.     

Activity coefficients of alkyl sulfate and alkylsulfonate ions in aqueous and water-salt premicellar solutions

Potentiometry has been employed to determine the activity coefficients of n-decyl sulfate and n-alkyl(C₅–C₁₀)sulfonate ions in aqueous solutions of their sodium salts containing NaCl or Na₂SO₄ as a background electrolyte. The selectivity factors have been estimated for ion-selective electrodes exhibiting responses to surfactant ions in the presence of inorganic salts. The pattern of the dependences of the activity coefficients of the surfactant anions on the length of their hydrocarbon radicals and the nature of functional groups has been revealed. The results obtained have been compared with the data on long-chain carboxylates.     

Preparation and properties of two polymorphic modifications of β-hydroxysulfoxide of the pinane series

The oxidation was performed of 2-(6,6-dimethylbicyclo[3.1.1]hept-2-ylmethylsulfanyl)ethanol II synthesized by adding 2-mercaptoethanol to (−)-β-pinene in the presence of a Lewis acid. The sulfoxide obtained is present in two polymorphic structures with different physical properties, spectral characteristics, and fungicidal activity.