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Spatial Separation of Covalent, Ionic, and Metallic Interactions in Mg11Rh18B8 and Mg3Rh5B3статья
Статья опубликована в высокорейтинговом журнале
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 2 мая 2014 г.
- Авторы: Alekseeva Anastasia M., Abakumov Artem M., Leither-Jasper Andreas, Schnelle Walter, Prots Yuri, Van Tendeloo Gustaaf, Antipov Eugene V., Grin Yuri
- Журнал: Chemistry - A European Journal
- Том: 19
- Номер: 52
- Год издания: 2013
- Издательство: John Wiley & Sons Ltd.
- Местоположение издательства: United Kingdom
- Первая страница: 17860
- Последняя страница: 17870
- DOI: 10.1002/chem.201301512
- Аннотация: The crystal structures of Mg11Rh18B8 and Mg3Rh5B3 have been investigated with single-crystal X-ray diffraction method: space group P4/mbm, Z = 2, a = 17.9949(7) Å, c = 2.9271(1) Å for Mg11Rh18B8 and space group Pmma, Z = 2, a = 8.450(2) Å, b = 2.8644(6) Å, c = 11.602(2) Å for Mg3Rh5B3. Both crystal structures are characterized by trigonal prismatic coordination of the boron atoms by rhodium. The trigonal prisms [BRh6] form arrangements with different connectivity patterns. Analysis of the chemical bonding by means of the electron localizability/electron density approach reveals covalent BRh interactions in these arrangements and the formation of the BRh polyanions. The magnesium atoms located inside the polyanions interact ionically with their environment. In the structure parts, formed mainly by Mg and Rh, multi-centre (metallic) interactions are found. Diamagnetic behavior and metallic electronic transport of Mg11Rh18B8 and Mg3Rh5B3 phases are in agreement with the bonding picture and the band structure.
- Добавил в систему: Алексеева Анастасия Михайловна