Simplified Synthesis and Structural Study of { Ta6Br12} Clusters

Autor:	Eugenia V. Peresypkina, Alexander V. Virovets, Maxim N. Sokolov, Vladimir P. Fedin, Maxim A. Mikhailov, Pavel A. Abramov
Rok vydání:	2010
Předmět:	Bromine Extraction (chemistry) Tantalum chemistry.chemical_element Infrared spectroscopy Crystal structure law.invention Inorganic Chemistry Crystallography chemistry law X-ray crystallography Crystallization Stoichiometry
Zdroj:	Zeitschrift für anorganische und allgemeine Chemie. 636:1543-1548
ISSN:	0044-2313
Popis:	Direct reaction of stoichiometric amounts of KBr, tantalum and bromine at 720 °C, followed by extraction and crystallization gives Ta6Br14·7H2O (1). This compound slowly aquates into [(Ta6Br12)(H2O)6]2+, which crystallized as mixed Cs+/Br– (2), Cl– (3) and SO42– (4) salts. In Bu4NBr melt, 1 undergoes oxidation into (Bu4N)2[(Ta6Br12)Br6] (5). Reaction of 1 with dimethylsulfoxide also induces oxidation of the { Ta6Br12} 2+ core into { Ta6Br12} 4+, and the corresponding complex [(Ta6Br12)(dmso)2Cl4]·iPrOH·4.8H2O (6) was isolated and structurally characterized. Molecular and crystal structures for 2–6 were determined.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::c0f61c83ef027c66666d85b87f509120 https://doi.org/10.1002/zaac.201000030 Zobrazit plný text záznamu Plný text