Osmium pentachloride

This procedure has been used to prepare many other chlorides, e.g., tungsten hexachloride, vanadium tetrachloride, and the pentachlorides of niobium and tantalum. However, it is normally much easier to prepare chlorides than fluorides. This method will therefore find application only where this generalization is not applicable. In particular, it will find application where the chloride is thermally unstable under normal chlorination conditions and must be prepared at or below room temperature. This method has been used to advantage for the preparation of ReCle and the new compound osmium pentachloride. ... 

Manganese trichloride oxide, 4141 Manganese trifluoride, 4335 Mercury(II) bromide, 0269 Mercury(I) fluoride, 4312 Mercury(II) iodide, 4602 Molybdenum hexafluoride, 4365 Molybdenum pentachloride, 4180 Neptunium hexafluoride, 4366 Osmium hexafluoride, 4370 Palladium tetrafluoride, 4347 Palladium trifluoride, 4341... 

OSMIUM TETROXIDE - WHITE PHOSPHORUS - WHITE PHOSPHORUS TRICHLORIDE PHOSPHORUS PENTACHLORIDE PHOSPHINE... 

Pentachloride und -bromide konnten bisher noch nicht hergestellt werden. Bei der Bildungunddem chemischen Transport von Osmium(IV)-chlorid (106) und Ruthenium(III)-chlorid wurden jedoch Hinweise auf die Existenz hoherer, fltichtiger Halogenide gefunden. Es konnte sich jedoch auch um Oxidchloride handeln, wie sie bereits seit langerer Zeit bekannt sind (144, 148). 

Chemical identification is a desirable method for detection of a new element Chemical identification of the elements immediately beyond hahnium (element 105) should be possible, but rapid chemical reactions will be required. Chemical properties can be predicted with the help of the periodic table shown in Fig. 24.1, which indicates that elements 106,107, 108, etc., should be chemical homologs, respectively, of tungsten (W), rhenium (Re), osmium (Os), etc. The utilization of volatility properties perhaps offers the best possibility for very rapid chemical identification. The hexafluoride and hexacarbonyl of element 106 (eka-tungsten) should be quite volatile and the hexachloride, pentachloride, and oxychlorides... 

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