Synthesis of [AuFe2(CO)8]3? and [Au4Fe4(CO)16]4? : X-ray structure of the [Au4Fe4(CO)16]4? cluster anion in its [NEt4]+ salt

Albano, Vincenzo G.; Calderoni, Francesca; Lapalucci, Maria Carmela; Longoni, Giuliano; Monari, Magda

doi:10.1039/c39950000433

Cited by 33 publications

(44 citation statements)

References 9 publications

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“…Two of them feature Cu I or Ag I squares with edge‐bridging μ‐{Co(CO) 4 } metalloligands,17 and the other two contain Ag I or Au I squares with edge‐bridging μ‐{Fe(CO) 4 } metalloligands 18. However, their mean AgAg (3.02117b and 3.149 Å18a) and AuAu distances (2.902 Å)18b are longer than in 3 and 4 , respectively.…”

mentioning

confidence: 82%

Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d¹⁰ Electronic Configuration

Sculfort¹,

Croizat²,

Messaoudi³

et al. 2009

Angew Chem Int Ed

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Gilded rafts: Oligomeric 2D raft clusters {M[m]}n (M=Cu, n=3; M=Ag or Au, n=4; see picture) with the same bridging metalloligand [m]={CpMo(CO)3} were prepared and structurally characterized. The ν2‐triangular (M=Cu) or ν2‐square (M=Ag, Au) structures of their metal–metal‐bonded cores allow comparative evaluation of the d10⋅⋅⋅d10 interactions, and theoretical calculations point to a favorable contribution of diagonal Au⋅⋅⋅Au or Ag⋅⋅⋅Ag interactions.

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confidence: 82%

Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d¹⁰ Electronic Configuration

Sculfort¹,

Croizat²,

Messaoudi³

et al. 2009

Angew Chem Int Ed

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“…In this sense, we recently reported that the thermal decomposition of the heterometallic Fe(CO) 4 {M(IMes)} 2 complexes (IMes = C 3 N 2 H 2 (C 6 H 2 Me 3 ) 2 ; M = Cu, Ag, Au) resulted in the triangular [M 3 Fe 3 (CO) 12 ] 3– clusters . Furthermore, the direct reaction of Na 2 [Fe(CO) 4 ] · 2thf with M(I) salts afforded the same triangular [Cu 3 Fe 3 (CO) 12 ] 3– cluster in the case of Cu, whereas the square species [M 4 Fe 4 (CO) 16 ] 4– where obtained for Ag and Au , . These results indicated a significant effect of the ancillary ligands on the synthesis and reactivity of heterometallic clusters.…”

Section: Introductionmentioning

confidence: 95%

A Comparative Experimental and Computational Study of Heterometallic Fe‐M (M = Cu, Ag, Au) Carbonyl Clusters Containing N‐Heterocyclic Carbene Ligands

et al. 2020

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The [Fe(CO)4{M(NHC)}]– (M = Cu, NHC = IMes, 1; M = Cu, NHC = IPr, 2; M = Ag, NHC = IMes, 3; M = Ag, NHC = IPr, 4; IMes = C3N2H2(C6H2Me3)2; IPr = C3N2H2(C6H3iPr2)2) mono‐anions were obtained from the reaction of Na2[Fe(CO)4]·2thf with one equivalent of M(NHC)Cl (M = Cu, Ag; NHC = IMes, IPr) in dmso. Furthermore, the reaction of Na2[Fe(CO)4]·2thf with two equivalents of M(NHC)Cl in thf afforded the neutral compounds Fe(CO)4{M(NHC)}2 (M = Cu, NHC = IMes, 11; M = Cu, NHC = IPr, 12; M = Ag, NHC = IMes, 13; M = Ag, NHC = IPr, 14). 2 and 4 further reacted with one equivalent of M(IPr)Cl (M = Cu, Ag, Au) resulting in the trimetallic clusters Fe(CO)4{Cu(IPr)}{Ag(IPr)} (18), Fe(CO)4{Cu(IPr)}{Au(IPr)} (19), and Fe(CO)4{Ag(IPr)}{Au(IPr)} (20). 1–4, 11–14 and 18–20 have been spectroscopically characterized by IR, 1H and13C{1H} NMR techniques. The molecular structures of 2, 12, 18, 19 and 20 have been determined through single‐crystal X‐ray diffraction. The structure, bonding and stability of the copper and silver IMes derivatives were compared to the related Fe‐Au clusters previously reported on the basis of theoretical calculations. Stability of the Fe–M bonds decreases in the order Au > Cu > Ag, and the same trend was found for what concerns the M‐IMes interactions. The decomposition products of 1–4, 11–14 and 18–20 have been studied allowing, among the others, the structural characterization of the new species [Fe2(CO)8{Ag(IPr)}]– (10) and Fe(CO)4(CH2IMes) (21).

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“…As shown in Figure 1, 4À [19] moieties in a tripledecker fashion. The outer {Fe(CO) 4 } groups adopt C 3v local symmetry of the carbonyl groups and behave as triply bridging (m 3 ) ligands, whereas the central {Fe(CO) 4 } groups adopt C 2v local symmetry of the carbonyl groups and behave as m 4 ligands.…”

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confidence: 95%

“…[17] The [Au 5 {Fe(CO) 4 } 4 ] 3À cluster (1) is isostructural with the corresponding [Cu 5 {Fe(CO) 4 } 4 ] 3À [18] and [Ag 5 {Fe(CO) 4 } 4 ] 3À [14] species (see Figure S1 in the Supporting Information). As shown in Figure 1, [Au 22 {Fe(CO) 4 } 12 ] 6À (2) may be formally envisioned to derive by sandwiching two [Au 5 ] 3+ fragments between three [Au 4 {Fe(CO) 4 } 4 ] 4À [19] moieties in a tripledecker fashion. The outer {Fe(CO) 4 } groups adopt C 3v local symmetry of the carbonyl groups and behave as triply bridging (m 3 ) ligands, whereas the central {Fe(CO) 4 } groups adopt C 2v local symmetry of the carbonyl groups and behave as m 4 ligands.…”

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confidence: 99%

An Organometallic Approach to Gold Nanoparticles: Synthesis and X‐Ray Structure of CO‐Protected Au₂₁Fe₁₀, Au₂₂Fe₁₂, Au₂₈Fe₁₄, and Au₃₄Fe₁₄ Clusters

et al. 2008

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CO‐vering gold: An organometallic approach to the synthesis of CO‐protected Au–Fe nanoparticles led to solutions of colloids with hydrodynamic diameters between 4 and 300 nm, from which [Au21{Fe(CO)4}10]5− (picture: metal frame; Au yellow, Fe green), [Au22{Fe(CO)4}12]6−, [Au28{Fe(CO)3}4{Fe(CO)4}10]8−, and [Au34{Fe(CO)3}6{Fe(CO)4}8]8− were isolated. Their X‐ray structures resemble those of gold–thiolate clusters.

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Synthesis of [AuFe2(CO)8]3? and [Au4Fe4(CO)16]4? : X-ray structure of the [Au4Fe4(CO)16]4? cluster anion in its [NEt4]+ salt

Cited by 33 publications

References 9 publications

Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d¹⁰ Electronic Configuration

Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d¹⁰ Electronic Configuration

A Comparative Experimental and Computational Study of Heterometallic Fe‐M (M = Cu, Ag, Au) Carbonyl Clusters Containing N‐Heterocyclic Carbene Ligands

An Organometallic Approach to Gold Nanoparticles: Synthesis and X‐Ray Structure of CO‐Protected Au₂₁Fe₁₀, Au₂₂Fe₁₂, Au₂₈Fe₁₄, and Au₃₄Fe₁₄ Clusters

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Synthesis of [AuFe2(CO)8]3? and [Au4Fe4(CO)16]4? : X-ray structure of the [Au4Fe4(CO)16]4? cluster anion in its [NEt4]+ salt

Cited by 33 publications

References 9 publications

Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d10 Electronic Configuration

Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d10 Electronic Configuration

A Comparative Experimental and Computational Study of Heterometallic Fe‐M (M = Cu, Ag, Au) Carbonyl Clusters Containing N‐Heterocyclic Carbene Ligands

An Organometallic Approach to Gold Nanoparticles: Synthesis and X‐Ray Structure of CO‐Protected Au21Fe10, Au22Fe12, Au28Fe14, and Au34Fe14 Clusters

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Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d¹⁰ Electronic Configuration

Two‐Dimensional Triangular and Square Heterometallic Clusters: Influence of the Closed‐Shell d¹⁰ Electronic Configuration

An Organometallic Approach to Gold Nanoparticles: Synthesis and X‐Ray Structure of CO‐Protected Au₂₁Fe₁₀, Au₂₂Fe₁₂, Au₂₈Fe₁₄, and Au₃₄Fe₁₄ Clusters