| Popis: |
The complex trans-[RhCl(CO){PMe2(2-MeOC6H4)}2] undergoes rapid oxidative addition with HCl, MeCl, MeI, CCl4, Cl2, and PhCOCl (R–X) to give rhodium(III) adducts of the normal type, i.e.[RhClXR(CO)L2]. Addition of HCl is readily reversed. Allyl chloride (R–X) also adds reversibly in benzene solution but in polar solvents the adduct rapidly isomerizes to the acyl complex [RhCl2(COCH2CH:CH2)L2]. Analogous acyl complexes were prepared from CH2:C(Me)CH2Cl, MeCH:CHCH2Cl, and MeCHClCH:CH2. The complex trans-[RhCl(CO){PBu2t(2-MeOC6H4)}2] resists oxidative addition reactions but in boiling propan-2-ol demethyfation of one ligand occurs to give the chelate [R[graphic omitted]){PBu2t(2-MeOC6H4)}]. RhCl3,3H2O reacts with PMe2(2-MeOC6H4) to give ultimately [R[graphic omitted])3] and with PBu2t(2-MeOC6H4) to give the intensely blue rhodium(II) species [R[graphic omitted])2], accompanied by small amounts of what appear to be carbonyl or hydrido-species. |
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