THE SYNTHESIS, STRUCTURAL CHARACTERIZATION AND VARIABLE-TEMPERATURE H-1-NMR STUDY OF THE BIS-TOLUENE HEXARUTHENIUM CARBIDOCARBONYL CLUSTER -C(6)H(5)ME)(MU(3)-ETA(2)ETA(2)ETA(2)-C(6)H(5)ME)]
D. Braga et al., THE SYNTHESIS, STRUCTURAL CHARACTERIZATION AND VARIABLE-TEMPERATURE H-1-NMR STUDY OF THE BIS-TOLUENE HEXARUTHENIUM CARBIDOCARBONYL CLUSTER -C(6)H(5)ME)(MU(3)-ETA(2)ETA(2)ETA(2)-C(6)H(5)ME)], Journal of organometallic chemistry, 462(1-2), 1993, pp. 301-308
The synthesis, chemical characterisation and single crystal X-ray stru
ctural study of the bis-toluene hexaruthenium carbidocarbonyl cluster
(6)H(5)Me)(mu(3)-eta(2):eta(2):eta(2)-C(6)H(5)Me)] is reported. A vari
able temperature H-1 n.m.r. study reveals that in solution the complex
exists in two isomeric forms, one of them, that observed in the solid
state and the solid state and the other the trans-[Ru6C(CO)(1)1(eta(6
)-C(6)H(5)Me)(2)] isomer. Interchange of the toluene ligand between th
e mu(3)-eta(2):eta(2):eta(2) and eta(6) co-ordination mode if confirme
d by deuterum labelling experiments involving C6D5CD3.