CARBONYL RHODIUM(I) AND RUTHENIUM(II) COMPLEXES WITH WATER-SOLUBLE PHOSPHINES

New rhodium(I) carbonyl and ruthenium(II) complexes with phosphines so luble in water: ,3,5-triaza-7-phosphatricyclo[3.3.1.1(3,7)]decane, tri s(hydroxy-methyl)phosphine and tris(2-cyanoethyl)phosphine, have been prepared. The RhCl(CO)(PR3)2 compounds possess trans square-planar str ucture and ruthenium(II) complexes are five and six-coordinate. The IR spectra show that in RuCl2(CO)2-{P(CH2CH2CN)3}2 complex, carbonyl lig ands are in trans coordination sites. In the case of [RhCl(CO)(PR3)2] complexes, the dependence of DELTAdelta (P-31) is inversely proportion al to the DELTAnu = nu(co)-nu(co)(complex). Complexes are catalysts fo r water gas shift reaction and reduction of CO2 leading to the formati on of CO and CH4.