In this work the results of the study of the catalytic activity of the dinuclear gem-dithiolato-bridged rhodium complex [Rh-2(mu-S2CBn2)(cod)(2)] (Bn = benzyl; cod = 1,5-cyclooctadiene) for the hydroformylation of hex-1-ene in CO/H2O, are presented. Under the best conditions for hydroformylation [P(CO) = 22 atm at 80 degrees C, in 24 h, toluene/H2O = 8/2, v/v, hex-1-ene (3 mmol), [Rh] = 0.01 mmol, hex-1-ene/[Rh] = 15 molar ratio] the only organic products observed (detected by GC and GC-MS) were heptanal and 2-methylhexanal and traces of 2-hexene (isomerization product). In addition, the products of the water gas shift reaction, H-2 and CO2, were also obtained as competitive reaction of the hydroformylation process.