The tautomeric behavior of 1-(2-pyridinyl)-1H-pyrazol-5-ols has been investigated in solution using UV–vis and NMR spectroscopies and DFT quantum-chemical calculations. The study has been focused on the influence of the molecular structure, solvents, and acid addition protonation. The tautomerism has been considered in light of the possible long-range intramolecular proton transfer and tautomeric switching under […]
Всяко вещество притежава „пръстов отпечатък“. Това е неговият спектър, който може да се регистрира Качеството на българското розово масло е най-високо в света Проф. Людмил Антонов е тазгодишният носител на голямата награда „Питагор“ на Министерството на образованието и науката за цялостен принос в развитието на науката. Той е професор по химия в Института по електроника […]
Three scientists from the Bulgarian Academy of Sciences have been awarded the Pythagoras Prizes 2021 for significant contributions to science. The official ceremony took place on 24 May and was broadcast on Bulgarian National Television. The Pythagoras Grand Prize for Young Scientist was awarded to Dr. Venelin Todorov, who is a senior assistant professor at […]
Five scientists, a research team and a company are the winners of this year’s Pythagoras Awards of the Ministry of Education and Science for their contribution to the development of science in Bulgaria. They received their awards at an official ceremony, which was broadcast on Bulgarian National Television. In the thirteenth edition of the competition, […]