SYNTHESIS AND CRYSTAL-STRUCTURE OF SUBSTI TUTED DECACARBONYLTRIRUTHENIUM BY CYCLOPENTENE CLUSTER RN-3(CO)(9)(C5H6)

Thermolysis of Ru-3(CO)(12) and cyclopentene in octane followed by TLC has given the title cluster compounds, which have been charaterized b y IR,H-1 NMR,C-13 NMR and elementary analysis. An X-ray diffraction of the product has unequivocally established its structure. The cluster crystallizes in monoclinic space group P2(1)/a, a = 1.6498(8), b = 1.3 221(5), c = 1.7330 (6)nm, beta = 91.54(3)degrees, V = 3779(3)nm(3), Z = 8, mu = 23.5 cm(-1), D-c = 2.18 g/cm(3), F(000) = 2352 and R = 0.075 4, R(w) = 0.0710 based on 3199 independent reflections with I greater than or equal to 3.5 sigma(I).