Rhenium chloride, potassium

Potassium chlororhenite has been prepared by reducing potassium perrhenate with potassium iodide in hydrochloric acid solution.1-4 The identity of the product has been questioned, and various formulae have been assigned to the compound. The difficulties encountered in obtaining a pure product were probably due to the inclusion of a double chloride of potassium and pentavalent rhenium. It is known that the primary reduction involves formation of pentavalent rhenium. 

ReCla Rhenium(V) chloride, 1 180 ReCleKa Potassium hexachloro-rhenate(IV), 1 178 ReOa Rhenium (VI) oxide, 3 186 Re04NH4 Ammonium perrhenate, 1 177, 178... 

The complexes described here, which are very easy to prepare in a pure state, are useful starting materials for the preparation of most compounds of rhenium (V) and should be considered with perrhenic acid, potassium hexahalorhe-nate(IV) salts, rhenium(III) chloride, rhenium(V) chloride, and dirhenium decacarbonyl as basic source materials in rhenium chemistry. The procedure is a modification of that originally used by Freni and Valenti, although the nature of the compounds obtained was clarified only by subsequent studies. - ... 

The 6-substituted cyano bipyridine has been generated in 95% yield from bipyridine A-oxide by reaction with trimethylsilylcyanide and dimethylcarbamylchloride.76 This is an improvement on an earlier method that generated 6-cyano bipyridine from the A-oxide in 62% yield using potassium cyanide and benzoyl chloride.77 This ligand has been used in electrochemical studies of rhenium complexes with sterically hindered bipyridine derivatives, as well as a precursor in the synthesis of 6-carbothioamide-bpy, which showed antitumor activity against P-388 lymphocytic leukemia in mice.77... 

Methylbromoarsines, synthesis 26 Vanadium(III) fluoride, synthesis 27 Sulfur(IV) fluoride, synthesis 33 Peroxydisulfuryl difluoride, synthesis 34 Trichloro(tripyridine)chromium(III), synthesis 36 Tris(3-bromoacetylacetonato)chromium(III), synthesis 37 Trichloro(tripyridine)molybdenum(III), synthesis 39 Uranyl chloride 1-hydrate, synthesis 41 Rhenium(III) iodide, synthesis 50 Potassium hexachlororhenate(IV) and potassium hexa-bromorhenate(IV), synthesis 51 Iron-labeled cyclopentadienyl iron complexes, synthesis 54 Inner complexes of cobalt(III) with diethylenetriamine, synthesis 56... 

RbNs Rubidium azide, 1 79 ReBreK2 Potassium hexabromo-rhenate(IV), 7 189, 191 ReCh Rhenium (III) chloride, 1 182... 

Stepanov, A.D., Shkol nikov S.N., and Ezrokhina, A.M. (1985) Eguilibrium of rhenium in the eqimole melt potassium chloride and sodium chloride, containing chloride of rhenium, Izv. Vyssh. Uchebn.Zaved. Tsvetn. 

After filtering the solution contained the rhenium originally present in the complex sludge. Potassium chloride was added and impure potassium perrhenate was precipitated. Very pure KReO was obtained by recrystallization. 

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