237423-29-9Relevant academic research and scientific papers
Synthesis of thiolate and phosphido bridged iron-manganese complexes; Molecular structure of cis-[FeMn(μ-CO)(μ-SEt)(CO)2(Cp)(C5H4Me)]
Albano, Vincenzo G.,Busetto, Luigi,Monari, Magda,Zanotti, Valerio
, p. 28 - 33 (2007/10/03)
The reaction of [Fe(CO)2(SR)(Cp)] (R=Et, Ph; Cp=η-C5H5) with [Mn(CO)2(thf)(C5H4Me)] (thf=tetrahydrofuran), under photolytic conditions, leads to the formation of the novel heterodinuclear bridged thiolate complexes [FeMn(μ-CO)(μ-SR)(CO)2(Cp)(C5H4Me)] in low yields. [FeMn(μ-CO)(μ-SEt)(CO)2(Cp)(C5H4Me)] consists of a mixture of cis and trans isomers which have been separated and characterized by IR and NMR spectroscopy. The μ-phosphido complex [FeMn(μ-CO)(μ-PPh2)(CO)2(Cp)(C5H 4Me)] has been prepared analogously from [Fe(CO)2(PPh2)(Cp)] and [Mn(CO)2(thf)(C5H4Me)]. Variable temperature NMR spectra of the latter heterodinuclear complex, in CDCl3, show the presence of an equilibrium mixture of the two interconverting cis and -trans isomers. The X-ray molecular structure of cis-[FeMn(μ-CO)(μ-SEt)(CO)2(Cp)(C5H4Me)] shows a bonded Fe-Mn interaction [2.617(2) A] reinforced by a μ-CO and a μ-SEt ligands. The molecule contains chiral centers at the iron, manganese and sulfur atoms and the diastereoisomer under study exhibits optimized non bonded contacts between the alkyl groups.
