Oxidative addition of a B—B bond by an iridium(I) complex: molecular structure of mer-cis-[Ir(PMe3)3Cl(Bcat)2]

Dai, Chaoyang; Stringer, Graham; Marder, Todd B.; Baker, Rose M.; Scott, A. J.; Clegg, William; Norman, Nicholas C.

doi:10.1139/v96-231

Cited by 43 publications

(23 citation statements)

References 13 publications

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“…83 Iridium-bisboryl compounds may be synthesized directly from [IrCl(PMe 3 ) 3 (coe)] and B 2 cat 2 (eq 31). 81 Although these reactions appear to be, for the most part, straightforward, the reactivity does not always proceed as expected. For example, Braunschweig and Wagner recently reported the synthesis and the first structural characterization of dinuclear complexes containing bridging borylene ligands.…”

Section: Reactions With Diborane(4) Compoundsmentioning

confidence: 86%

Transition Metal−Boryl Compounds: Synthesis, Reactivity, and Structure

et al. 1998

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Section: Reactions With Diborane(4) Compoundsmentioning

confidence: 86%

Transition Metal−Boryl Compounds: Synthesis, Reactivity, and Structure

et al. 1998

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“…A remarkable structural feature of crystalline 1 is the rather long PtBr bond length (2.6183(8) Å), which provides an indication of the high trans influence of the B(Fc)Br group. Indeed, on account of its strong σ‐donor character, the boryl ligand exerts a higher trans ‐labilizing influence8 than that of other σ donors, such as hydrido7a, 9 and stannyl groups,6a or π acceptors, such as CO 10. Herein, we demonstrate how strongly this property influences the reactivity of 1 .…”

Section: Methodsmentioning

confidence: 99%

A T‐Shaped Platinum(II) Boryl Complex as the Precursor to a Platinum Compound with a Base‐Stabilized Borylene Ligand

et al. 2005

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Transition-metal boryl complexes constitute an abundant and important class of boron-containing transition-metal compounds, [1] in view of their intermediacy in the catalyzed hydro- [2] and diboration [3] of unsaturated organic substrates, as well as the selective CÀH bond activation of alkanes and arenes. [4] A number of synthetic routes have been applied to the generation of boryl complexes.[1] Among these, that involving BÀX (X = Cl, Br) bond oxidative addition has seldom been employed, and examples of rhodium and iridium, [5] palladium, [6] and platinum [7] boryl complexes synthesized in this fashion have only relatively recently appeared in the literature.We previously reported the synthesis of trans-[(Cy 3 P) 2 Pt(Br){B(Fc)Br}] (Fc = ferrocenyl, Cy = cyclohexyl)(1) by reaction of [Pt(PCy 3 ) 2 ] with FcBBr 2

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“…In the solid state, compound 50 displays a rather large PtBr bond length (2.6183(8) Å), which provides an indication of the high trans influence of the B(Br)Fc group. Indeed, as demonstrated by a number of structural and theoretical studies, the boryl ligand, with its strong σ‐donor character, exerts a rather high trans ‐labilizing ability,45 higher than that of other σ donors such as hydrido44b,c and stannyl44a groups, or π acceptors like carbon monoxide 44d. Accordingly, treatment of 50 with Na[BAr F 4 ] in CH 2 Cl 2 or C 6 H 5 F led to the facile synthesis of the T‐shaped three‐coordinate platinum complex trans ‐[(Cy 3 P) 2 Pt{B(Br)Fc}][BAr F 4 ] ( 72 , Scheme ) 46…”

Section: Boryl Complexesmentioning

confidence: 99%

Transition‐Metal Complexes of Boron—New Insights and Novel Coordination Modes

2006

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Since the publication of the last review in 1998, the transition-metal chemistry of boron has continued to raise unceasing interest. Boryl complexes, representing the most extensive subclass, have remained a focus of intense research, particularly for their implication in the metal-mediated functionalization of organic substrates. Absolute novelties such as borane complexes and terminal borylene complexes have been structurally authenticated. Upon further elaboration of these compounds, the known coordination modes of boron-based ligands have grown considerably. Combined structural and theoretical investigations have contributed to elucidate the fundamental electronic characteristics of the transition-metal-boron bond and are leading to applications of these compounds. The most useful synthetic strategies for the generation of transition-metal-boron bonds are highlighted here, and the most recent and intriguing compounds that have been reported are outlined and discussed.

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Oxidative addition of a B—B bond by an iridium(I) complex: molecular structure of mer-cis-[Ir(PMe₃)₃Cl(Bcat)₂]

Cited by 43 publications

References 13 publications

Transition Metal−Boryl Compounds: Synthesis, Reactivity, and Structure

Transition Metal−Boryl Compounds: Synthesis, Reactivity, and Structure

A T‐Shaped Platinum(II) Boryl Complex as the Precursor to a Platinum Compound with a Base‐Stabilized Borylene Ligand

Transition‐Metal Complexes of Boron—New Insights and Novel Coordination Modes

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