Abstract
Irradiation of the cation [η-C5Me4H)Fe(η-C6H6)]++ (1) and ButNC with visible light in acetonitrile results in the displacement of the benzene ligand, giving [(η-C5Me4H)Fe(ButNC)3]+ (2). Reactions of complex 1 with P(OR)3 and dppe in MeCN yield the complexes [(η-C5Me4H)-Fe(MeCN)P(OR)3 2]+ (R = Me (3) and Et (4)) and [(η-C5Me4H)Fe(MeCN)(dppe)]+ (5) containing two Fe—P bonds. The same reactions in CH2Cl2 give the tris(phosphite) complexes [(η-C5Me4H)FeP(OR)3 3]+ (6, 7). A photochemical reaction of complex 1 with pentaphos-phaferrocene Cp*Fe(η-cyclo-P5) yields the triple-decker cation [(η-C5Me4H)Fe(μ-η:η-cyclo-P5)FeCp*]+ (8) with a bridging pentaphospholyl ligand. Structures [2]PF6 and [3]PF6 were identified by X-ray diffraction.
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