77611-25-7Relevant academic research and scientific papers
Bimetallic sandwiches based upon phosphole ligands
Santini, Catherine C.,Fischer, Jean,Mathey, Fran?ois,Mitschler, André
, p. 2848 - 2852 (2008/10/08)
The reaction of a phosphole (L) with a σ,π complex L'Fe2(CO)n (L′ = another phosphole; n = 6 or 7) gives the metallic sandwich L[Fe2(CO)4]L′. A heterobimetallic sandwich is also obtained when L′FeMo(CO)8 is the starting compound. The X-ray crystal structure of the complex with L = L′ = 1-phenyl-3,4-dimethylphosphole has been determined. Crystal data: monoclinic, C2/c, with a = 14.334 (1) A?, b = 12.375 (1) A?, c = 16.470 (1) A?, β = 112.62 (1)°. The two phosphole rings adopt a head to tail disposition and are strongly folded. Very large 31P-31P NMR coupling suggests a direct through-space interaction between the nonbonded phosphorus and iron atoms.
