Библиографическое описание:Comprehensive Study of the Ammonium Sulfamate-Urea Binary System : научное издание / Aleksandr S. Kazachenko [et al.]. - Текст : непосредственный // Molecules. - 2023. - Т.28, №2. - P. 470. - ISSN 1420-3049, DOI 10.3390/molecules28020470.
Аннотация:The physicochemical properties of binary systems are of great importance for the application of the latter. We report on the investigation of an ammonium sulfamate–urea binary system with different component ratios using a combination of experimental (FTIR, XRD, TGA/DSC, and melting point) and theoretical (DFT, QTAIM, ELF, RDG, ADMP, etc.) techniques. It is shown that, at a temperature of 100 °C, the system under study remains thermally and chemically stable for up to 30 min. It was established using X-ray diffraction analysis that the heating time barely affects the X-ray characteristics of the system. Data on the aggregate states in specified temperature ranges were obtained with thermal analysis and determination of the melting point. The structures of the ammonium sulfamate–urea system with different component ratios were optimized within the density functional theory. The atom-centered density matrix propagation calculation of the ammonium sulfamate–urea system with different component ratios was performed at temperatures of 100, 300, and 500 K. Regardless of the component ratio, a regular increase in the potential energy variation (curve amplitude) with an increase in temperature from 100 to 500 K was found.
Держатель оригинала документа:Department of Biological Chemistry with Courses in Medical, Pharmaceutical and Toxicological Chemistry, Krasnoyarsk State Medical University, Department of Chemistry, Maharshi Dayanand University, Rohtak 124001, Department of Organic and Analytical Chemistry, Siberian Federal University, Department of Physics and Astronomy, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, IMD Laboratories Co., R&D Section, Lefkippos Technology Park, NCSR Demokritos, P.O. Box 60037, Institute of Chemistry and Chemical Technology, Krasnoyarsk Scientific Center, Siberian Branch, Russian Academy of Sciences, Laboratory of Quantum and Statistical Physics (LR18ES18), Faculty of Sciences, University of Monastir, Vocational School of Food, Agriculture and Livestock, University of Bingöl
Количество экземпляров:
Твёрдая копия издания отсутствует в фонде библиотеки
