Добрый день, Коллеги. Важное сообщение, просьба принять участие. Музей Ферсмана ищет помощь для реставрационных работ в помещении. Подробности по ссылке
Symmetry relationships between crystal structures. Applications of crystallographic group theory in crystal chemistry / Соотношения симметрии между кристаллическими структурами
Crystal-structure analysis has become one of the most essential tools in chemistry and related disciplines. Several hundreds of thousands of crystal structures have been determined in the course of the years. The results obtained from 1931 to 1990 were published year by year in Strukturbericht [1], later Structure Reports [2]. Nowadays, crystal structures are deposited in several large databases [3–8]. However, the mere accumulation of data is only of restricted value if it lacks a systematic order and if the scientific interpretation of the data leaves much to be desired. <...>