Iridium complexes chromatography

The layers were separated and the aqueous phase was extracted with dichloromethane (2 X 10 mL). The combined organic extracts were dried over anhydrous magnesium sulfate and evaporated under reduced pressure. The red/brown residue was purified by column chromatography (eluent dichloromethane) to give the desired iridium complex (262 mg, 0.15 mmol, 68%) as an orange powder. 

Dry distillation and gas phase separation of technetium oxides from oxides of rhenium, osmium, iridium, and ruthenium by temperature-programmed gas chromatography using O2 as reactive gas was reported [109]. Furthermore, the separation of technetium chloride (TeCU) from volatile chlorides of numerous elements by thermo-chromatography combined with complex formation was investigated. The separation tube had a temperature gradient from 600 to 25 °C and was coated with KCl, CsCI, NaCl, and BaClj [HOj. 

The hydrosilylation catalysis either by dimeric or by monomeric rhodium and iridium siloxide complexes occurs via preliminary oxidative addition of hydrosilane, followed by elimination of disiloxane (detected by gas chromatography-mass spectrometry) to generate square-planar 16e complex containing M—H and TT-bonded olefins (for catalysis by monomeric Rh and Ir complexes of vinylsilane hydrosilylation, see (Scheme 10)) (82). 

---