Syntheses and structural characterisation of [Ir4(CO)11(η1-L)] and [Ir4(CO)10(η1-L)2]{L =[Fe(η5-P3C2But2)(η5-P2C3But3)] and [Fe(η5-C5H5)(η5-P3C2But2)]} and [Ir4(CO)11{µ-η1: η1-[Fe(η5</sup

Benvenutti, Maria Helena A.; Hitchcock, Peter B.; Nixon, John F.; Vargas, Maria D.

doi:10.1039/dt9960000739

Cited by 10 publications

(1 citation statement)

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“…The coordination chemistry of monophosphaferrocene derivatives, unlike that of di- and triphosphaferrocenes, remains largely unexplored. In the case of group 8 metals, although some complexes of 1,2,4-triphosphaferrocene [Fe(η 5 -C 5 Me 5 )(η 5 -P 3 C 2 tBu 2 )] with the tetrairidium undecacarbonyl cluster 3a,b and with the [Rh(η 5 -C 5 Me 5 )(CO)] fragment 3c have been described, complexes of monophosphaferrocenes are unknown. In view of the major role played by Rh and Ir catalysts, we decided to investigate the synthesis of their homoleptic phosphaferrocene complexes.…”

Section: Introductionmentioning

confidence: 99%

Rhodium(I) and Iridium(I) Phosphaferrocene Complexes

et al. 1999

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The synthesis of 3,4-dimethylphosphaferrocene (1) complexes of rhodium ([Rh(1)3Cl], 2, and [Rh(1)4][BF4], 3) and iridium ([Ir(1)3(COD)][BF4], 4) are reported. An X-ray crystal structure analysis of the homoleptic derivative 3 reveals that ligands arrange around the rhodium center without apparent steric congestion. Complex 4, which was also structurally characterized, adopts a trigonal bipyramid geometry in the solid state. The reaction of 4 with H2 under pressure yields the [Ir(1)4H2]+ complex.

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Section: Introductionmentioning

confidence: 99%

Rhodium(I) and Iridium(I) Phosphaferrocene Complexes

et al. 1999

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The First Coordination Polymers Based on 1,3‐Diphosphaferrocenes and 1,1′,2,3′,4‐Pentaphosphaferrocenes

et al. 2015

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Phosphaferrocenes in combination with coinage metal salts proved to be excellent building blocks in supramolecular chemistry for the buildup of oligomeric and polymeric assemblies. The synthesis of a series of novel phosphaferrocenes containing the 1,3‐P2C3 iPr3 and/or the 1,2,4‐P3C2 iPr2 ligand is described herein. The self‐assembly processes of the 1,3‐diphospha‐, 1,2,4‐triphospha‐, and 1,1′,2,3′,4‐pentaphosphaferrocenes with CuI halides led to the formation of 1D or 2D polymers. With [Cp*Fe(η5‐P2C3 iPr3)] (Cp* = η5‐C5Me5), infinite chains are formed, whereas with [(η5‐P3C2 iPr2)Fe(η5‐P2C3 iPr3)] 1D ladderlike structures are obtained. These are the first polymers containing such a di‐ and pentaphosphaferrocene, respectively. On the other hand, the use of [Cp*Fe(η5‐P3C2 iPr2)] leads to the construction of 2D networks with intact sandwich complexes, which is uncommon for this class of complexes.

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A dimer of the negatively charged carbonyl cluster {Ir₄(CO)₁₁⁻}₂ bonded by a single Ir−Ir bond, and comparison with the singly bonded (C₆₀⁻)₂ dimer.

Sobov

Shestakov

Kuźmin

et al. 2023

Zeitschrift anorg allge chemie

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Reduction of the Ir 4 (CO) 12 cluster by two equivalents of Cp* 2 Cr (Cp* is η 5 -Me 5 C 5 ) produces the (Cp* 2 Cr + ) 2 {Ir 4 (CO) 11 À } 2 • 4 C 6 H 4 Cl 2 complex. Two Ir 4 (CO) 11À anions are bonded by a single IrÀ Ir bond in the anionic {Ir 4 (CO) 11À } 2 dimer. The bond length is 2.8339(5) Å at 100 K. Therefore, clusters can form metal-metal bonded dimers under reduction. The {Ir 4 (CO) 11 À } 2 dimers do not dissociate to paramagnetic species up to 340 K and even higher temperatures that indicates their high stability. DFT calculations show that dimerization of clusters can occur due to the loss of one CO group in neutral or anionic clusters. Dimerization of anionic transition metal cluster is to a certain extend similar to dimerization of negatively charged carbon cluster -fullerene C 60 *À and here we compare both types of dimers.

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Syntheses and structural characterisation of [Ir₄(CO)₁₁(η¹-L)] and [Ir₄(CO)₁₀(η¹-L)₂]{L =[Fe(η⁵-P₃C₂Bu^t₂)(η⁵-P₂C₃Bu^t₃)] and [Fe(η⁵-C₅H₅)(η⁵-P₃C₂Bu^t₂)]} and [Ir₄(CO)₁₁{µ-η¹: η¹-[Fe(η⁵

Cited by 10 publications

References 34 publications

Rhodium(I) and Iridium(I) Phosphaferrocene Complexes

Rhodium(I) and Iridium(I) Phosphaferrocene Complexes

The First Coordination Polymers Based on 1,3‐Diphosphaferrocenes and 1,1′,2,3′,4‐Pentaphosphaferrocenes

A dimer of the negatively charged carbonyl cluster {Ir₄(CO)₁₁⁻}₂ bonded by a single Ir−Ir bond, and comparison with the singly bonded (C₆₀⁻)₂ dimer.

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Syntheses and structural characterisation of [Ir4(CO)11(η1-L)] and [Ir4(CO)10(η1-L)2]{L =[Fe(η5-P3C2But2)(η5-P2C3But3)] and [Fe(η5-C5H5)(η5-P3C2But2)]} and [Ir4(CO)11{µ-η1: η1-[Fe(η5

Cited by 10 publications

References 34 publications

Rhodium(I) and Iridium(I) Phosphaferrocene Complexes

Rhodium(I) and Iridium(I) Phosphaferrocene Complexes

The First Coordination Polymers Based on 1,3‐Diphosphaferrocenes and 1,1′,2,3′,4‐Pentaphosphaferrocenes

A dimer of the negatively charged carbonyl cluster {Ir4(CO)11−}2 bonded by a single Ir−Ir bond, and comparison with the singly bonded (C60−)2 dimer.

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Syntheses and structural characterisation of [Ir₄(CO)₁₁(η¹-L)] and [Ir₄(CO)₁₀(η¹-L)₂]{L =[Fe(η⁵-P₃C₂Bu^t₂)(η⁵-P₂C₃Bu^t₃)] and [Fe(η⁵-C₅H₅)(η⁵-P₃C₂Bu^t₂)]} and [Ir₄(CO)₁₁{µ-η¹: η¹-[Fe(η⁵

A dimer of the negatively charged carbonyl cluster {Ir₄(CO)₁₁⁻}₂ bonded by a single Ir−Ir bond, and comparison with the singly bonded (C₆₀⁻)₂ dimer.