REACTION OF DODECACARBONYLTRIRUTHENIUM WITH CINNAMALDEHYDE

The reaction of dodecacarbonyltriruthenium with cinnamaldehyde yielded a mixture of the known H4Ru4(CO)(12), H2Ru4(CO)(13), and H2Ru6(CO)(18 ), and Ru6C(CO)(17) clusters and the 1,1,1,2,2,2,3,3,3-nonacarbonyl- 1 ,2; 1,3 -(mu(2)-dihydrido)-1,3-sigma;2-pi-[mu(3) - eta(2)-(phenyl)viny lidene] triangulotriruthenium complex. The structure of the last-menti oned compound was established by X-ray diffraction study. The mechanis m of the reaction and a possible pathway of formation of the vinyliden e complex are discussed.