SYNTHESIS AND CHARACTERIZATION OF THE LINEAR M-HG-M TRIMETALLIC COMPLEXES [ETA(5)-BZ(5)C(5)(CO)(3)M](2)HG AND [ETA(5)-HO2CC5H4(CO)(3)M](2)HG (M=CR, MO, W) - THE X-RAY CRYSTAL-STRUCTURE OF [ETA(5)-BZ(5)C(5)(CO)(3)W](2)HG

The eta(5)-Bz(5)C(5) ligand-containing trimetallic complexes [eta(5)-B z(5)C(5)(CO)(3)M]Hg-2 (M = Cr, Mo, W) were synthesized from the in sit u reaction of phenylmercuric chloride with corresponding transition me tal lithium salts [eta(5)-Bz(5)C(5)(CO)(3)M] Li in THF, whereas the et a(5)-HO2CC5H4 ligand-containing trimetallic complexes [eta(5)-HO2CC5H4 (CO)(3)M]Hg-2 were synthesized through hydrolysis of their correspondi ng esters in the presence of KOH/EtOH/H2O, followed by acidification. These compounds were characterized by elemental analysis, IR, H-1 NMR and MS spectroscopy, while the structure of [eta(5)-Bz(5)C(5)(CO)(3)W] Hg-2 was determined by an X-ray diffraction analysis. Copyright (C) 19 96 Elsevier Science Ltd