The platinum(II) hydroxo complexes, [L(2)Pt(mu-OH)](2)(BF4)(2) (1), have been prepared from the reaction of L(2)PtCl(2) with AgBF4 for L(2) = dppm, dppp, dppb, 2PMe(2)Ph, and Bu(2)(t)bpy (dppm = bis(diphenylphosphino)methane, dppe = bis(diphenylphosphino)ethane, dppp = bis(diphenylphosphino)propane, dppb = bis(diphenylphosphino)butane, Bu(2)(t)bpy = 4,4’-di-tert-butyl-2,2’-bipyridine). The trifluoroacetate (L(2) = dppp) and the nitrate (L(2) = Bu(2)(t)bpy) salts were also prepared. Two of these new hydroxo complexes, as well as the previously known PPh(3) complex, were structurally characterized. Crystals of [(PPh(3))(2)Pt(mu-OH)](2)(BF4)(2) from CH2Cl2/ether are monoclinic (C2/m) with a = 17.183(5) Angstrom, b = 18.243(4) Angstrom, c = 13.539(4) Angstrom, beta = 130.66(2)degrees, and Z = 2.