Dynamic nuclear magnetic resonance study of Group 6 metal pentacarbonyl complexes. Pyramidal inversion and 1,2-metal shifts in the complexes [M(CO)5(Me2CCH2EECH2)](M = Cr, Mo, or W; E = S or Se)

Abel, E. W.; Mittal, Payal; Orrell, Keith G.; Šik, Vladimír

doi:10.1039/dt9850001569

Cited by 20 publications

(30 citation statements)

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“…The product was identified based on the published 1 H NMR spectro-scopic data. [33] 13 C{ 1 H} NMR (126 MHz, CDCl 3 ): δ = 51.37, 47.29, 27.06 ppm.…”

Section: Caution! Due To the Potentially Hazardous And Toxic Nature Omentioning

confidence: 99%

Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides

et al. 2009

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Catalyst leaching from Pd and Ni particles stabilized by organic sulfur and selenium ligands occurs in solution in the presence of phosphanes. This process has been monitored in real time by 1D and 2D NMR spectroscopy and the nature of the metal species established. This catalyst leaching is shown to be a powerful tool for generating new catalytic activity from species formed in situ where the parent bulk particles

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“…The product was identified based on the published 1 H NMR spectro-scopic data. [33] 13 C{ 1 H} NMR (126 MHz, CDCl 3 ): δ = 51.37, 47.29, 27.06 ppm.…”

Section: Caution! Due To the Potentially Hazardous And Toxic Nature Omentioning

confidence: 99%

Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides

et al. 2009

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“…[9] More recently oligomeric, dimeric and monomeric zinc complexes, with no co-ligands, with pyridine or with neocuproin, respectively, of sterically crowded and electron-poor naphthalene-1,8-dithiolate derivatives were reported. [10] Complexes in which the chalcogen±chalcogen bond remains unbroken have also been described, examples of which are a series of Group 6 pentacarbonyl systems bearing monodentate naphtho [1,8-cd] [1,2]dichalcogenole ligands (M = Cr or Mo, E and E' = S or Se) (B) [11] and a binuclear Re I carbonyl complex with bridging bromides and a naphtho [1,8-cd] [1,2]dithiole ligand (C). [12] Although the literature pertaining to complexes of naphtho [1,8-cd] [1,2] (-(O=) 2 SÀMÀS(=O) 2 -) metal complexes.…”

Section: Introductionmentioning

confidence: 99%

Platinum Complexes of Naphthalene‐1,8‐dichalcogen and Related Polyaromatic Hydrocarbon Ligands

Aucott

Milton

Robertson

et al. 2004

Chemistry A European J

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Platinum bisphosphine complexes bearing dichalcogen-derivatised naphthalene, acenaphthene or phenanthrene ligands have been prepared by either oxidative addition to zero-valent platinum species or from [PtCl(2)(PPhR(2))] (R=Ph or Me) and the disodium or dilithium salts of the parent disulfur, diselenide or mixed S/Se species. The parent naphthalene, acenaphthene and phenanthrene chalcogen compounds were treated with either [Pt(PPh(3))(4)] or [Pt(C(2)H(4))(PMe(3))(2)] (prepared in situ from [PtCl(2)(PMe(3))(2)], ethene and sodium naphthalide or super hydride [LiBEt(3)H]) to give the appropriate platinum(II) species. The dilithium salts of 1,8-E(2)-naphthalene (E=S or Se) prepared in situ by reduction of the E-E bond with [LiBEt(3)H] were treated with [PtCl(2)(PPh(3))(2)] to give [Pt(1,8-E(2)-nap)(PPh(3))(2)]. The tetraoxides [Pt(1,8-(S(O)(2))(2)-nap)(PR(3))(2)] (PR(3)=PPh(3) or PMe(2)Ph) were prepared in a similar metathetical manner from the appropriate [PtCl(2)(PR(3))] complexes and the disodium salt of naphthalene 1,8-disulfinic acid (1,8-(S(O)ONa)(2)-nap). The X-ray structures of selected examples reveal bidentate coordination with the naphthalene-E(2) unit hinged (111-137 degrees) with respect to the coordination plane. The naphthalene ring suffers significant distortion from planarity.

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“…While the related replacement is known for the reaction between boron trihalides and diphenyl boron halide giving phenyl boron dihalide under severe conditions. 13 It should be noted that the direct reaction of K[FeCp(CO) 2 ] with AlBr 3 or GaBr 3 under typical conditions in order to synthesize [1Al] 2 or [1Ga] 2 gave a complicated mixture including a small amount of the desired product. In addition, the reaction of 2 with an equivalent amount of BBr 3 resulted in a complicated mixture.…”

Section: Resultsmentioning

confidence: 99%

“…Solvents were purified by the Ultimate Solvent System, Glass Contour Company (THF, toluene, and hexane) 18 or by trap-totrap distillation from a potassium mirror prior to use (C 6 D 6 ). 1 H, 13…”

Section: Generalmentioning

confidence: 99%

Dibromometallyl‐iron complexes generated by the recombination of an alumanyl‐iron complex with EBr₃ (E = Al, Ga)

Yanagisawa

Mizuhata

Tokitoh

2018

Heteroatom Chemistry

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The first dibromoalumanyl‐iron complex [Br2Al–FeCp(CO)2] was synthesized by the reaction of monobromoalumanyl‐iron complex bearing a bulky substituent on aluminum atom with AlBr3, whose structure was determined by the X‐ray crystallographic analysis and the NMR measurement. The reactions monobromoalumanyl‐iron complex with GaBr3 show that these reactions would proceed by the mutual recombination of substituents.

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Dynamic nuclear magnetic resonance study of Group 6 metal pentacarbonyl complexes. Pyramidal inversion and 1,2-metal shifts in the complexes [M(CO)₅(Me₂CCH₂EECH₂)](M = Cr, Mo, or W; E = S or Se)

Cited by 20 publications

References 1 publication

Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides

Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides

Platinum Complexes of Naphthalene‐1,8‐dichalcogen and Related Polyaromatic Hydrocarbon Ligands

Dibromometallyl‐iron complexes generated by the recombination of an alumanyl‐iron complex with EBr₃ (E = Al, Ga)

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Dynamic nuclear magnetic resonance study of Group 6 metal pentacarbonyl complexes. Pyramidal inversion and 1,2-metal shifts in the complexes [M(CO)5(Me2CCH2EECH2)](M = Cr, Mo, or W; E = S or Se)

Cited by 20 publications

References 1 publication

Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides

Catalyst Leaching as an Efficient Tool for Constructing New Catalytic Reactions: Application to the Synthesis of Cyclic Vinyl Sulfides and Vinyl Selenides

Platinum Complexes of Naphthalene‐1,8‐dichalcogen and Related Polyaromatic Hydrocarbon Ligands

Dibromometallyl‐iron complexes generated by the recombination of an alumanyl‐iron complex with EBr3 (E = Al, Ga)

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Product

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Dynamic nuclear magnetic resonance study of Group 6 metal pentacarbonyl complexes. Pyramidal inversion and 1,2-metal shifts in the complexes [M(CO)₅(Me₂CCH₂EECH₂)](M = Cr, Mo, or W; E = S or Se)

Dibromometallyl‐iron complexes generated by the recombination of an alumanyl‐iron complex with EBr₃ (E = Al, Ga)