857495-01-3Relevant academic research and scientific papers
Synthesis, structure, and ligand-based reduction reactivity of trivalent organosamarium benzene chalcogenolate complexes (C5Me 5)Sm(EPh)(THF) and [(C5Me5) 2Sm(μ-EPh)]2
Evans, William J.,Miller, Kevin A.,Lee, David S.,Ziller, Joseph W.
, p. 4326 - 4332 (2005)
To compare the ligand-based reduction chemistry of (EPh)- ligands in a metallocene environment to the sterically induced reduction chemistry of the (C5Me5)- ligands in (C 5Me5)3Sm, (C5Me5) 2Sm(EPh) (E = S, Se, Te) complexes were synthesized and treated with substrates reduced by (C5Me5)3Sm: cyclooctatetraene; azobenzene; phenazine. Reactions of PhEEPh with (C 5Me5)2Sm(THF)2 and (C 5Me5)2Sm produced THF-solvated monometallic complexes, (C5Me5)2Sm(EPh)(THF), and their unsolvated dimeric analogues, [(C5Me5) 2Sm(μ-EPh)]2, respectively. Both sets of the paramagnetic benzene chalcogenolate complexes were definitively identified by X-crystallography and form homologous series. Only the (TePh)- complexes show reduction reactivity and only upon heating to 65°C.
