Flexibly Bridged Binuclear Rhodium and Iridium Complexes of p-Xylenebis(3-(2,4-pentanedione)).
ROCHESTER UNIV NY DEPT OF CHEMISTRY
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Binuclear complexes of Rh and Ir containing a flexibly bridging bisacac ligand have been synthesized and characterized. The reaction of Mmicro-Cl-1,5-COD2 MRh,Ir with p-xylylenebis3-2,4-pentanedione, xylHacac2, 2 equiv KOH results in the formation of the binuclear compounds MCOD2-xylacac2. The cyclooctadiene ligand in these complexes is readily displaced from the metal centers by either CO or PPH3 leading to the formation of MCO22xylacac2 and MPPH322xylacac2, respectively. The MCO2-xylacac2 complexes react with excess triphenylphosphine, leading to the displacement of one CO from each metal center and the formation of MCOPPH32xylacac2.
- Inorganic Chemistry