| Abstract: | Anionic iron(0) tetracarbonyl with terminal phenyltellurolate ligand PhTe?, PhTeFe(CO)4]?, has been synthesized and characterized. The title compound was obtained by addition of (PhTe)2 to PPN]HFe(CO)4] THF solution dropwise. PPN]PhTeFe(CO)4] crystallizes in the monoclinic space group C c, with a = 16.119(4) Å, b = 13.141(3) Å, c = 19.880(8) Å, β = 93.04(3)°, V = 4205(2) Å3, and Z = 4. The PhTeFe(CO)4]? anion is a trigonal-bipyramidal complex in which the phenyltellurolate ligand occupies an axial position with Fe-Te bond length 2.630(5) Å and the Fe-Te-C(Ph) angle is 103.4(5)°. The neutral iron(0)-telluroether compound, (PhTeMe)Fe(CO)4, was prepared by alkylation of the PhTeFe(CO)4]?. Protonation of PhTeFe(CO)4]?and reaction of H2Fe(CO)4 and PhTe)2 ultimately lead to formation of the known dimer Fe2(μ-TePh)2(CO)6 and H2. |
