Phase equilibrium liquid-vapor in three-component system UF6-IF5-BrF3 at complete mutual components solubility

The results of studying phase equilibrium liquid-vapor at 353,15 K in the system of uranium hexafluoride, iodine pentafluoride, bromine trifluoride have been presented. The dependences of saturated vapor pressure on condensed phase composition, the results of analysis of studied system deviation from error-free behavior, the data on equilibrium vapor phase are give

Br2F7 - and Br3F10 -

RbCl and CsCl react with BrF3 yielding the corresponding decafluoridotribromates(iii), MBr3F10 (M = Rb, Cs), which were structurally characterized for the first time. The Br3F10 - anion is surprisingly not linear but contains a μ3-bridging fluorine atom and seems to be the first example of μ3-F bridging of Br atoms. The compounds are highly reactive and cannot be handled in glassware. As for the tetrafluoridobromates themselves, they are powerful oxidizers and thus suitable for the dry-chemical recycling of precious metals and additionally feature a significantly higher BrF3 content.Peer reviewe

ИССЛЕДОВАНИЕ ПРОЦЕССА БРОМИРОВАНИЯ Н-ГЕКСАНА ТЕТРАФТОРОБРОМАТОМ БАРИЯ BA(BRF 4) 2

It was shown, that barium fluorobromate Ba(BrF 4) 2 brominates hexane with the formation of 3-bromo-hexane with high yields. The optimal interaction parameters were found. The heat effect of the reaction was determined by isothermal calorimetric method, it is -1451 kJ/mole. It was found that conditions of researched reaction are quite unusual for known free-radical hydrogen substitution processes in case of alkanes.Показано, что Ba(BrF 4) 2 выступает в качестве высокоактивного бромирующего агента по отношению к н-гексану с образованием 3-бромгексана и найдены оптимальные условия для контролируемого протекания реакции. Определено значение теплового эффекта реакции Ba(BrF 4)2 и н-гексана, оно составило -1451 кДж/моль. Отмечено, что условия протекания обнаруженной реакции бромирования являются нетипичными для известных свободно-радикальных процессов замещения водорода в насыщенных углеводородах

Synthesis and characterization of barium hexafluoridoosmates

Two barium hexafluoridoosmates, Ba(OsF6)2 and BaOsF6, were synthesized and were characterized for the first time using X-ray powder and single crystal diffraction, IR spectroscopy, as well as NMR spectroscopy in anhydrous hydrogen fluoride. Ba(OsF6)2 crystallizes in the space group type P21/c with the cell parameters a = 6.4599(4), b = 10.7931(8), c = 14.7476(10) Å, β = 115.195(5)◦, V = 930.42(12) Å3, Z = 4 at 293 K. BaOsF6 crystallizes in the space group type R3 with the cell parameters a = 7.3286(10), c = 7.2658(15) Å, V = 337.95(12) Å3, Z = 3 at 100 K. Additionally, we have obtained the compounds Ba(OsF6)2·3BrF3, Ba(OsF6)2·HF, Ba(OsF6)2·6H2O from the respective solvents, and Ba(OsF6)2.Peer reviewe