METHOD FOR PRODUCING AQUEOUS PREPARATIONS OF COMPLEXES OF PLATINUM GROUP METALS

摘要

Preparing water-containing formulation comprising complexes of platinum group metals (I), comprises reacting a hydroxo-complex, preferably hydrogen tetrahydroxo-palladate(IV) (H 2Pd(OH) 4) or hexahydroxoplatinic(IV) acid (H 2Pt(OH) 6) respectively with a neutral donor ligand, in which at least one hydroxo-group of the hydroxo-complex is replaced. The reaction is carried out in presence of a reducing agent (if the group M1 is platinum). Preparing water-containing formulation comprising complexes of platinum group metals of formula ((M1(L) a(H 2O) b(O 2> ->) c(OH ->) d)(OH ->) e(H +>) f) (I), comprises reacting a hydroxo-complex, preferably hydrogen tetrahydroxo-palladate(IV) (H 2Pd(OH) 4) or hexahydroxoplatinic(IV) acid (H 2Pt(OH) 6) respectively with a neutral donor ligand, in which at least one hydroxo-group of the hydroxo-complex is replaced. The reaction is carried out in presence of a reducing agent (if the group M1 is platinum). M1 : Pt or Pd present in +2 oxidation state (both having a coordination number 4); L : neutral monodentate- or bidentate donor ligand; a : 1-4 (for monodentate donor ligand) or 1 or 2 (for bidentate donor ligand); b, c, d : 0-3; e : 0-2; and f : 0-4. Independent claims are also included for: (1) preparing a water-containing formulation comprising complexes of platinum group metals of formula ((M2(L) a1(H 2O) b1(O 2> ->) c1(OH ->) d1)(OH ->) e1(H +>) f) (II), comprising reacting a hydroxo-complex, preferably hexahydroxoplatinic(IV) acid with a neutral donor ligand, in which at least one of the hydroxo-group of the hydroxo-complex is replaced; (2) preparing a water-containing formulation comprising complexes of platinum group metals of formula ((M3(L) a1(H 2O) b1(O 2> ->) c1(OH ->) d1)(OH ->) e2(H +>) f2) (III), comprising reacting a hydroxo-complex of formula (H 3M3(OH) 6) (IV) with a neutral donor ligands, in which at least one hydroxo-group of the hydroxo-complex is replaced; (3) a water-containing formulation comprising a platinum(II) complex, preferably bis(ethylenediamine)-platinum dihydroxide; (4) a water-containing formulation comprising a platinum(II) complex, preferably tetrakis(ethanolamine)-platinum dihydroxide; (5) a water-containing formulation comprising a platinum(II) complex, preferably bis(ethylenediamine)-platinum carbonate; (6) a water-containing formulation comprising a platinum(II) complex, preferably tetrakis(ethanolamine)-platinum carbonate; (7) a water-containing formulation comprising a platinum(II) complex, preferably tetrakis(ethanolamine)-platinum diacetate; and (8) a water-containing formulation comprising a platinum(II) complex, preferably tetrakis(ethanolamine)-platinum bis(bicarbonate). M2 : Pt in +4 oxidation state (having a coordination number 6); a1 : 1-6 (for monodentate donor ligand) or 1-3 (for bidentate donor ligand); b1, d1, f2 : 0-5; c1, e1 : 0-4; M3 : Rh or Ir present in +3 oxidation state (both having a coordination number 6); and e2 : 0-3.