Browsing by Author "Scotti Radich, Mario"
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- ItemPreparation and properties of cationic trimethylphosphiterhodium(I) complexes with arene ligands(1988) Valderrama Guerrero, Mauricio; Scotti Radich, Mario; Meriggio, FlaviaThe preparation and properties of cationic arenerhodium(I) complexes of general formula [Rh {P(OMe)3}(?6-arene)]A [arene=C6H6?nMen (n=0, 1, 2, 3, 4 or 6); A=ClO 6? , PF 6? ] are described. The coordinated arene is dissociated in (CD3)2 CO or DCCl3 solution and this dissociation decreases with increased methyl substitution of the arene ligand. The ability of these cationic complexes to function as an intermediate for the synthesis of other rhodium(I) complexes by displacement of the coordinated arene with ? or ?-donor ligands has been studied.The preparation and properties of cationic arenerhodium(I) complexes of general formula [Rh {P(OMe)3}(?6-arene)]A [arene=C6H6?nMen (n=0, 1, 2, 3, 4 or 6); A=ClO 6? , PF 6? ] are described. The coordinated arene is dissociated in (CD3)2 CO or DCCl3 solution and this dissociation decreases with increased methyl substitution of the arene ligand. The ability of these cationic complexes to function as an intermediate for the synthesis of other rhodium(I) complexes by displacement of the coordinated arene with ? or ?-donor ligands has been studied.
- ItemRhodium(I) diolefin complexes with polycyclic π-arene ligands. Synthesis of bimetallic complexes with diphenylmethane as bridging ligand(1984) Valderrama Guerrero, Mauricio; Scotti Radich, Mario; Cifuentes, Pedro; Ganz, RicardoThe preparation and properties of cationic arenerhodium(I) complexes of general formula [Rh(diolefin)(?6arene)]ClO4 (diolefin=1,5-cyclooctadiene, tetrafluorobenzobarrelene or trimethyltetrafluorobenzobarrelene; arene = biphenyl or diphenylmethane) are described. These complexes react with the solvated intermediate complex [Rh(diolefin)(Me2CO)x]ClO4 to give homobimetallic [(diolefin)Rh(Ph2CH2)Rh(diolefin)](ClO4)2 derivatives. New heterobimetallic complexes of the type [(diolefin)Rh(Ph2CH2)Cr(CO)3]ClO4 have been synthesized by reaction of Cr(CO)3(?6-Ph2CH2) with the solvated complex [Rh(diolefin)(Me2CO)x]ClO4 or, alternatively by treatment of [Rh(diolefin)(?6-arene)]ClO4 with the complex Cr(CO)3(?6Me3B3N3Me3) in chloroform solution.