The chemistry of (.eta.5-cyclopentadienyl)dicarbonyliron hydride revisited

Microwave-assisted synthesis of cyclopentadienone iron tricarbonyl complexes: molecular structures of [{η4-C4R2C(O)C4H8}Fe(CO)3] (R = Ph, 2,4-F2C6H3, 4-MeOC6H4) and attempts to prepare Fe(II) hydroxycyclopentadienyl–hydride complexes

“…Guan suggests that the observed differences between 1 and 2 are likely due to the propensity of the bulky trimethylsilyl groups to block the formation of dimeric products. We would broadly concur with this view, while also noting the clear difference in stability between the iron(II) cyclopentadienyl-hydride B and the related species [(η 5 -C 5 H 5 )Fe(CO) 2 H] studied by Baird and co-workers [70]. The latter is rapidly degraded in the presence of oxidants via a free-radical chain process which generates hydrogen and the iron(I) dimer [(η 5 -C 5 H 5 )Fe(CO) 2 ] 2 .…”

Iron Cyclopentadienone Complexes: Discovery, Properties, and Catalytic Reactivity

“…[18] They were able to isolate the first iron hydride hydroxycyclopentadienyl complex Fe7 by a Hieber-type reaction of Fe6 with 1m NaOH and subsequent treatment with H 3 PO 4 (Scheme 6). [19] Crystal structures of both starting complex and product confirmed the iron hydride nature of the obtained species. At this stage, all the knowledge was set for the application of these complexes in catalytic redox transformations but eight years were necessary before their successful utilization in catalytic reactions.…”

Synthesis of heterodinuclear hydride complexes by oxidative addition of a transition-metal hydride to Pt(0) and Pd(0) complexes

“…Elemental analyses were carried out with a PerkineElmer 2400 series II CHN analyzer. PtI 2 (dppe) [33], MoHCp(CO) 3 [34], WHCp(CO) 3 [35], MnH(CO) 5 [36], and FeHCp(CO) 2 [37] were prepared according to literature procedures.…”