Bases of inorganic and organic chemistry

Stated fundamental theoretical principles of general, inorganic and organic chemistry and analyzed the reactivity of the most important classes of inorganic and organic substances. A multivariate tasks and exercises for classroom and independent work are proposed. For university students full-time and distance learning areas "Chemical Technology and Engineering" "Oil and gas engineering and technology" and others

Rich Chemistry in Inorganic Halide Perovskite Nanostructures.

Halide perovskites have emerged as a class of promising semiconductor materials owing to their remarkable optoelectronic properties exhibiting in solar cells, light-emitting diodes, semiconductor lasers, etc. Inorganic halide perovskites are attracting increasing attention because of the higher stability toward moisture, light, and heat as compared with their organic-inorganic hybrid counterparts. In particular, inorganic halide perovskite nanomaterials provide controllable morphology, tunable optoelectronic properties, and improved quantum efficiency. Here, the development controlled synthesis of desired inorganic halide perovskite nanostructures by various chemical approaches is described. Utilizing these nanostructures as platforms, anion exchange chemistry for wide compositional and optical tunabilities is described, and the rich structural phase transition phenomenon and mechanism investigated systematically. Furthermore, these nanostructures and extracted knowledge are applied to design photonic, photovoltaic, and thermoelectric devices. Finally, future directions and challenges toward improvement of the optical, electrical, and optoelectronic properties, exploration of the anion and cation exchange kinetics, and alleviation of the stability and toxicity issues in inorganic lead based halide perovskites are discussed to provide an outlook on this promising field

In the footsteps of Alfred Werner: The institute of Inorganic Chemistry at the University of Zurich

Inorganic chemistry has a long-standing tradition at the University of Zurich starting with Carl Jacob Lowig, the first professor of chemistry. The influence of Nobel Prize winner Alfred Werner in coordination, organometallic, and bioinorganic chemistry extends right up to the present day as can be seen in many of the research fields of the current professors and young research scientists. With all due respect for the long tradition in inorganic chemistry the Institute of Inorganic Chemistry is also looking forwards to define its role to meet the challenges of the future

Reduced Barrier for Ion Migration in Mixed-Halide Perovskites.

Halide alloying in metal halide perovskites is a useful tool for optoelectronic applications requiring a specific bandgap. However, mixed-halide perovskites show ion migration in the perovskite layer, leading to phase segregation and reducing the long-term stability of the devices. Here, we study the ion migration process in methylammonium-based mixed-halide perovskites with varying ratios of bromide to iodide. We find that the mixed-halide perovskites show two separate halide migration processes, in contrast to pure-phase perovskites, which show only a unique halide migration component. Compared to pure-halide perovskites, these processes have lower activation energies, facilitating ion migration in mixed versus pure-phase perovskites, and have a higher density of mobile ions. Under illumination, we find that the concentration of mobile halide ions is further increased and notice the emergence of a migration process involving methylammonium cations. Quantifying the ion migration processes in mixed-halide perovskites shines light on the key parameters allowing the design of bandgap-tunable perovskite solar cells with long-term stability

Inorganic Chemistry.

n/

Applied Inorganic Chemistry

Викладено загальні принципи техніки хімічних експериментів, що базуються на прикладному використанні основних положень теоретичної хімії в процесах технології неорганічних речовин, а саме, технології виробництва сірковмісної продукції, сполук зв’язаного азоту, добрив, содопродуктів, глинозему, титановміщуючих продуктів, процесів прикладної екології та водопідготовки. Призначений для поглибленого вивчення різних аспектів застосування в лабораторній практиці фундаментальних положень хімії та обґрунтування особливостей реальних рішень з майбутньої фахової діяльності. Може бути використаний студентами при підготовці до лекційних занять, контрольних робіт, до виконання студентами лабораторних та практичних робіт.General principles of the technique of chemical experiments that are based on the applied application of the basic provisions of theoretical chemistry in processes of inorganic substances technology, in particular, the technologies of production of sulfur-containing products, compounds of bound nitrogen, fertilizers, soda products, alumina, titanium-containing products, processes of applied ecology and water treatment have presented. Designed for the in-depth study of various aspects of the application in laboratory practice of the basic chemistry principles and the substantiation of the peculiarities of real solutions for future professional activities. It can be used by students in preparation for lecture classes, control works, and can perform laboratory and practical work by students