Browsing by Author "Valderrama Guerrero, Mauricio"
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- ItemCationic arene-ruthenium(II) complexes with CH(PPh(2))(3) and their chalcogenides derivatives(1996) Valderrama Guerrero, Mauricio; Contreras Rodríguez, Raúl Leonardo; Arancibia Moya, Verónica; Munoz, P.
- ItemDiolefin rhodium(I) complexes with tropolone and related ligands(1981) Valderrama Guerrero, Mauricio; Rafart, Horacio; Oro, Luis A.Rhodium(I) tropolonate and salicylaldehydate complexes of the general formula Rh(A)(diolefin) (A = tropolonate, ?-iso-propyltropolonate, ?-methyltropolonate and salicylaldehydate; diolefin = 1,5-cyclooctadiene, 2,5-norbornadiene and tetrafluorobenzobarrelene) have been prepared by several routes. The ability of Rh(trop)(COD) to function as an intermediate for the synthesis of other neutral and cationic rhodium(I) complexes has been studied and its hydroformylation activity has been explored briefly.
- ItemDithioethers as ligands in pentamethylcyclopentadienylrhodium(III) and iridium(III) complexes. Crystal structures of [{(eta(5)-C5Me5)Rh}(2)(mu-Cl)(2){mu-(MeS)(2)CH2}](BF4)(2)center dot H2O and [(eta(5)-C5Me5)IrCl2{eta(1)-(PhS)(2)CH2}](2001) Valderrama Guerrero, Mauricio; Contreras Rodríguez, Raúl Leonardo; Arancibia Moya, Verónica; Boys, D.
- ItemHexamethylbenzeneruthenium(II) complexes containing bis(diphenylphosphine)amine and their sulphur or selenium derivatives as ligands.(2000) Valderrama Guerrero, Mauricio; Contreras Rodríguez, Raúl Leonardo; Arancibia Moya, Verónica; Muñoz Concha, Patricio Antonio
- 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.
- ItemSynthesis and electrochemical properties of cyclopentadienyliron(II) complexes with bis(diphenylphosphino)amine as ligand(2001) Valderrama Guerrero, Mauricio; Arancibia Moya, Verónica; Contreras Rodríguez, Raúl Leonardo; Soto, Cristián
- ItemSynthesis and electrochemical properties of p-cymene-ruthenium(II) complexes with (EPPh2)(2)CHR (E=S, Se R=H, Me) and their anionic derivatives as ligands. Crystal structure of [(eta(6)-MeC6H4Pri)Ru{eta(3)-(SPPh2)(2)CMe-C,S,S'}]PF6(1997) Valderrama Guerrero, Mauricio; Contreras Rodríguez, Raúl Leonardo; Arancibia Moya, Verónica; Muñoz, Patricio
- ItemSynthesis and reactivity of cationic trimethyltetrafluorobenzobarrelene rhodium(I) complexes(1983) Valderrama Guerrero, Mauricio; Ganz, Ricardo; Sariego, RenatoThe preparation and properties of cationic rhodium(I) complexes of the types [Rh(Me3TFB)L2]PF6 (L=O. N. P, As or Sb-donor ligands, Me3TFB=trimethyltetrafluorobarrelene), [Rh(Me3TFB) (?6-arene)]PF6 (arene=C6Me6, C6H6Me3, C6H6 or C10H8) and [Rh(Me23TFB)(PPh3)L]PF6 (L=Me2CO or Me2SO) are described. Some complexes react with carbon monoxide at normal pressure with displacement of Me3TFB and formation of carbonyl derivatives. The arene-exchange behaviour for the new complex with naphthalene (C10H8) was examined in acetone solutions.