1996
DOI: 10.1016/0020-1693(95)04897-9
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Reaction of (η1-allenyl)dicarbonyl(η5-cyclopentadienyl)ruthenium with nonacarbonyldiiron: synthesis and characterization of iron-ruthenium mixed-metal products

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Cited by 15 publications
(9 citation statements)
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“…The proposed initial coordination of the terminal CC of Cp(CO) 2 MCHCCH 2 to Pt(PPh 3 ) 2 is precedented by a spectroscopically inferred similar mode of ligation of Cp(CO) 2 RuCHCCH 2 to iron carbonyl . This μ-η 1 :η 2 α , β -allenyl species would then likely isomerize to a μ-η 1 :η 2 α , β counterpart, since rearrangement from μ-η 1 (M):η 2 (Pt)-CHCCH 2 to μ-η 1 (Pt):η 2 (M)-CHCCH 2 is best considered to occur from the latter.…”
Section: Resultsmentioning
confidence: 99%
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“…The proposed initial coordination of the terminal CC of Cp(CO) 2 MCHCCH 2 to Pt(PPh 3 ) 2 is precedented by a spectroscopically inferred similar mode of ligation of Cp(CO) 2 RuCHCCH 2 to iron carbonyl . This μ-η 1 :η 2 α , β -allenyl species would then likely isomerize to a μ-η 1 :η 2 α , β counterpart, since rearrangement from μ-η 1 (M):η 2 (Pt)-CHCCH 2 to μ-η 1 (Pt):η 2 (M)-CHCCH 2 is best considered to occur from the latter.…”
Section: Resultsmentioning
confidence: 99%
“…The Ru−Fe single bond distance of 2.761(2) Å falls in the range of Ru−Fe distances observed in binuclear and trinuclear ruthenium−iron μ-allenyl and related complexes (2.62−2.79 Å). , The μ-allenyl ligand is η 1 bonded to Pt (Pt−C(13) = 2.022(9) Å) and η 2 bonded through each the internal C(12)C(13) and the terminal C(11)C(12) double bond to Fe (Fe−C(13) = 2.116(10), Fe−C(12) = 1.981(10) Å) and Ru (Ru−C(12) = 2.116(9), Ru−C(11) = 2.214(9) Å), respectively. These distances are comparable to the M−C bond distances associated with μ-allenyl groups in related compounds. ,,,, Both C(12)C(13) (1.362(13) Å) and C(11)C(12) (1.431(13) Å) are elongated by coordination to metal from free CC bonds in metal η 1 -allenyl complexes. Carbon− carbon bond lengthening of a similar magnitude has been noted for triangular metal μ-η 1 :η 2 :η 2 -allenyl complexes, with C β C γ generally being longer than C α C β . 1b,c The angle C(13)−C(12)−C(11) of 6a (149.7(9)°) is in the range observed for closed trinuclear metal μ-allenyls II (127−152°). 1b,c
3 ORTEP diagram of 6a . The hydrogen atoms have been omitted.
…”
Section: Resultsmentioning
confidence: 99%
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“…In recent years, sulfur-containing iron carbonyl complexes have drawn increased attention mainly due to their unusual structures and chemical reactivities as well as their potential usefulness in catalysis and material and life sciences . The previous study showed that the interaction of anionic sulfur-bridged iron carbonyl complexes with electrophilic species was largely emphasized for those with some alkyl- or alkyl-like halides. The direct reactions of S-bridged iron carbonyl clusters with unsaturated hydrocarbon species have remained scarce, and related studies were limited to only some diiron systems. ,, Quite a number of metal-alkyne systems have been reported to have versatile bonding modes and interesting transformations. ,, For example, Vahrenkamp and co-workers synthesized a series of heteronuclear metal complexes starting from mononuclear acetylide complexes LnMC⋮CR . Wojcicki and co-workers developed syntheses and reactivities of many binuclear and polynuclear transition metal−propargyl and/or −allenyl complexes. , More recently, some polynuclear metal carbonyl clusters with simple alkynes have been studied as well …”
Section: Introductionmentioning
confidence: 99%
“…For the past two decades, much attention has been focused on the chemistry of mononuclear 1 and binuclear transition-metal vinylcarbene complexes 2 , (η 4 -metallabutadiene)metal complexes 2 ‘, or η 3 :η 1 -allylidene complexes 2 ‘‘ (Chart ). Especially, heterobinuclear vinylcarbene complexes are of interest; however, methods of preparation of these complexes are not completely established. As for the preparation of (μ-vinylcarbene)(M 1 −M 2 ) complexes, the following two representative methods are reported: (1) reaction of (μ-methylene)(M 1 −M 2 ) 3 with alkynes (eq 1); (2) reaction of (η 1 -vinylcarbene)M 1 or 1-metallabutadiene 4 with M 2 (eq 2) .…”
Section: Introductionmentioning
confidence: 99%