DI AND TRIMETALLIC PtII, PtIV COMPLEXES CONTAINING DIMETHYLPHOSPHONATE GROUPS S BRIDGING LIGANDS

The complexes <FONT FACE=Symbol>[ Pt{(P(O)(OMe)2)2H}2]</FONT> and <FONT FACE=Symbol>[ PtCl(PPh3){(P(O)(OMe)2) 2H}]</FONT> react with Tl(acac) in chloroform or with KOH in methanol solution to yield thetrinuclear and binuclear complexes, <FONT FACE=Symbol>[ Pt{m -P)O)(OMe)2}4M2]</FONT> and <FONT FACE=Symbol>[ PtCl(PPh3){m -P(O)(OMe)2 }2M]</FONT> (M = Tl, K), respectively. These derivatives react with (PtMe3)2SO4· 4H2O or <FONT FACE=Symbol>[ {Me3PtI}4]</FONT> with formation of the solvated complexes <FONT FACE=Symbol>[ Pt{m -P(O))OMe)2}4{PtMe 3(MeOH)}2]</FONT> and <FONT FACE=Symbol>[ PtCl(PPh3){m -P(O)(OMe)2 }2{PtMe3(MeOH)}]</FONT> .Addition of donor ligands displaces the coordinated methanol to afford the corresponding adducts <FONT FACE=Symbol>[ Pt{m -P(O)(OMe)2}4{PtMe3L}2]</FONT> (L = py, 3,5-Me2py, P(p-MeOPh)3}and <FONT FACE=Symbol>[ PtCl(PPh3){m -P(O)(OMe)2 }2{PtMe3L}]</FONT> (L = py, PPh3). The complexes are characterized by elemental analysis, and IR and NMR spectroscopy

Détails bibliographiques

Auteurs principaux:	CONTRERAS,RAUL, VALDERRAMA,MAURICIO, NETTLE,ALEXIS, ARANCIBIA,VERONICA
Format:	Digital revista
Langue:	English
Publié:	Sociedad Chilena de Química 1999
Accès en ligne:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0366-16441999000300006
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