Recent chemistry of the η5-cyclopentadienyl dicarbonyl iron anion

Metalate‐Mediated Functionalization of P4 by Trapping Anionic [Cp*Fe(CO)2(η1‐P4)]− with Lewis Acids

“…To selectively generate anionic TM(h 1 -P 4 ) À from P 4 ,w er easoned that as table, bulky metalate with well-defined nucleophilic character would be required, for which the readily available Li[Cp*Fe(CO) 2 ]w as considered ag ood candidate. [19] To capturet he incipient phosphide, we opted for B(C 6 F 5 ) 3 as strong LA. Indeed, addition of as olution of P 4 in toluene to ac ooled (0 8C) mixture of Li[Cp*Fe(CO) 2 ]a nd B(C 6 F 5 ) 3 instantaneously gave the novel LA-stabilizedb icyclo[1.1.0]tetraphosphabutanide 1a (d 31 P{ 1 H}: À65.0 (P1), À107.1 (P4), À340.7 (P2/ P3) ppm), which could be isolatedi n55 %y ield as ad ark yellow powder (Scheme 2).…”

Photochemical Heck benzylation of styrenes catalyzed by Na[FeCp(CO)2]

“…Accordingly, attempts at either stoichiometric reactions of aryl halides with Fpor catalytic arylation of styrene using Fpdid not result in detectable conversion in our hands. On the other hand, Fpis known to active alkyl halides readily [37][38][39], and so we shifted our focus to catalytic alkylation of styrene using Fp -. Despite the long history of organoiron chemistry using the Fp fragment [37][38][39], such catalysis has not been reported previously.…”

Electrochemical analysis of cyclopentadienylmetal carbonyl dimer complexes: Insight into the design of hydrogen-producing electrocatalysts

“…All of these active sites prominently feature iron-carbonyl. Utilizing the idea that a cyclopentadienyl anion (Cp À ) ligand [4] has similar electronic properties to the Ni ligation sphere of [FeNi]-H 2 ase [5] has lead to reports of successful molecular hydrogen production from Cp-Fe-CO based compounds [6].…”

“…Cyclic voltammograms of 1.00 mM of: Fe 2 Cp 2 (CO) 4 (Fp 2 , blue); Ru 2 Cp 2 (CO)4 (Rp 2 , red); Mo 2 Cp 2 (CO)6 , (Mp 2 , green); and W 2 Cp 2 (CO)6 , (Wp 2 , purple) in 0.100 M Bu 4 NPF 6 in Ar saturated acetonitrile, at a scan rate of 0.100 V/s, scanning first in the negative potential direction. (For interpretation of the references to colour in this figure legend, the reader is referred to the web version of this article.…”