Journal of Organometallic Chemistry p. 379 - 392 (1987)
Update date:2022-08-05
Topics:
Knoll, Konrad
Huttner, Gottfried
Zsolnai, Laszlo
Orama, Olli
The RP bridged clusters (μ3-RP)Fe3(CO)10 (1) react with diphenylacetylene upon irradiation to yield three different isomers (RP)(PhCCPh)Fe3(CO)9 (2-4) depending on the reaction conditions.X-ray diffraction analysis of the isomers shows that in 2, which appears to be the primary photochemically formed product, the alkyne is inserted between a phosphorous and an iron center of 1.For isomer 3 one of the PFe bonds of the starting cluster 1 is bridged by the alkyne while in 4 the alkyne is inserted into an FeFe edge of 1.These observations suggest that photochemical activation of 1 involves homolytic PFe bond scission with consequent decarbonylation.
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