Water-soluble ruthenium complexes containing tris( m-sulfonatophenyl) phosphine (TPPTS). Preparation of a series of [Ru(H)( η6-arene)(TPPTS) 2]Cl complexes, [Ru(H) 2(CO)(TPPTS) 3] and revisited procedures for previously described ruthenium-TPPTS compounds

Abstract

The TPPTS ligand is the trihydrated form of the sodium salt of tris( m-sulfonatophenyl)phosphine. Complexes [Ru(Cl)(μ-Cl)(TPPTS) 2] 2 1 and [Ru(H)(X)(TPPTS) 3], where X = Cl 2, OAc 3, have been prepared by a phosphine exchange from [Ru(Cl) 2(PPh 3) 3] and [Ru(H)(X)(PPh 3) 3] as previously described by Basset. Complex 1 presents in solution a solvolysis phenomenon which has been studied by 31P NMR. Complex 1 is a useful starting material to easily prepare 2, [Ru(H) 2(TPPTS) 4] 4, the new species [Ru(H) 2(CO)(TPPTS) 3] 5, and the series of the new water-soluble complexes [Ru(H)( η 6-arene)(TPPTS) 2]Cl 6, where arene = benzene, toluene, p-xylene, ethylbenzene, cumene, tetraline, cinnamic-, and dihydrocinnamic alcohols. All these compounds have been characterized by 1H, 13C, and 31P NMR. Complexes 6 can also been obtained, but with an excess of TPPTS and sometimes OTPPTS, from RuCl 3 · 3H 2O n TPPTS , or from 2 and 3 as well.