Phosphorus-31 chemical shifts are reported for eleven compounds of the type mev-[Ir(Ph,R3-,P)3Cl,1 where R is alkyl and n is 0, 1, or 2. The occurrence of two peaks in the ratio of 2:l in the phosphorus-31 magnetic resonance spectra confirms the meridional stereochemistry for the compounds. The chemical shift upon coordination is upfield from the free ligand, which is somewhat unusual for tertiary phosphine coordination compounds. Some proton magnetic resonance spectra and electronic spectra are also reported.
Die Rh(III)‐Komplexe (Ia)‐(Ic) werden aus Rh(III)‐chlorid oder auch aus Trichloro‐tris‐[acetonitril]‐rhodium(III), die Rh(I)‐Komplexe (II) aus Bis‐ [chloro‐cyclooctadien‐( 1,5 )‐rhodium (I)] und dem entsprechenden tert.‐ Phosphin, der Rh(III)‐Komplex (Id) wird aus Rh(III)‐chlorid und Jodo‐ trimethylphosphin‐silber (I) dargestellt.
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