Ruthenium tribromide

Ruthenium Tribromide, RuBr3, is most readily obtained by evaporation of an aqueous solution of the tetroxide with concentrated hydro-bromic acid 4 ... 

Related ruthenium tribromide or -triiodide complexes are also obtained by using bromine or iodine instead of chlorine, respectively. 

Phosphorus tribromide Potassium, ruthenium tetroxide, sodium, water... 

See Chromyl chloride Non-metal halides Oxygen (Gas) Phosphorus tribromide Ruthenium(VIII) oxide Phosphorus tribromide... 

Phosphorus pentafluoride Phosphorus pentasulfide Phosphorus pentoxide Phosphorus, red Phosphorus tribromide Phosphorus bichloride Water or steam Air, alcohols, water Formic acid, HF, inorganic bases, metals, oxidants, water Organic materials Potassium, ruthenium tetroxide, sodium, water Acetic acid, aluminum, chromyl dichloride, dimethylsulfoxide, hydroxylamine, lead dioxide, nitric acid, nitrous acid, organic matter, potassium, sodium water... 

Aqua-1,2-diaminoethanediperoxochromium(IV), 0961 Aqua-1,2-diaminopropanediperoxochromium(IV) dihydrate, 1332 fraws-Aquadioxo(terpyridine)ruthenium(2+) diperchlorate, 3680 Aquafluorobis(l, lO-phenanthroline)chromium(III) perchlorate, 3840 Aquaglycinatonitratocopper, see Copper(II) glycinate nitrate, 0901 Argon, 0091 Arsenic, 0092 Arsenic pentaazide, 0103b Arsenic pentafluoride, 0095a Arsenic pentaoxide, 0106 Arsenic trichloride, 0094 Arsenic trioxide, 0105 Arsenic trisulfide, 0108 Arsenous triazide, see Triazidoarsine, 0103a Arsine—boron tribromide, 0101 f Arsine, 0100... 

Treatment of the tribromide with PPh3 in CH2CI2 gives a mononuclear ruthenium(IV) complex. 

Apart from an alkaline hydrolysis affecting mainly ester and amide bonds a boron tribromide treatment and a ruthenium tetroxide oxidation were applied to the extracted residues. The BBr3-treatment cleaves aromatic and aliphatic ether and ester bonds. The oxidation using RuCU attacks the aromatic carbon atoms and releases, therefore, mainly unalterated aliphatic moieties. 

Br3Hi2N4Ru, Ruthenium(lIIX tetrammine-dibromo-, cis-, bromide, 26 67 Br3TX Titanium tribromide, 26 382... 

The ruthenium compound also has been prepared and displays similar properties, although it has not yet been the subject of an x-ray study. Bis-indenylcobalt, the first member of the series to be prepared, has a structure similar to the iron analogue on the basis of a comparison of x-ray powder photographs. This latter compound can be readily oxidized to give the quite stable Co(III) compound which, like the cobalticinium ion, may be precipitated as the triiodide, tribromide picrate, or perchlorate. The perchlorate exhibits a well-defined polarographic reduction wave at —0.6 V vs SCE. The corresponding half-wave potential for cobalticinium perchlorate is — 1.16 V. Thus the annulation of a benzene ring produces a very marked decrease in the reduction potential and, conversely, the oxidation of the new compound to the ion should become more difficult. 

Jing, H. Chang, T Jin, L. Wu, M. Qiu, W. Ruthenium Salen/Phenyl Trimethyl Ammonium Tribromide Catalyzed Coupling Reaction of Carbon Dioxide and Epoxides. Catal. Comm. 2007, 8, 1630-1634. 

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