Search Results - "Welch, Alan J"

Bridges and Vertices in Heteroboranes by Macgregor, Stuart A, Welch, Alan J

“…A number of (hetero)boranes are known in which a main group atom 'bridges' a B-B connectivity in the open face, and in such species has previously been…”
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Exopolyhedral Ligand Orientation Controls Diastereoisomer in Mixed-Metal Bis(carboranes) by Chan, Antony P Y, Rosair, Georgina M, Welch, Alan J

“…Heterobimetallic derivatives of a bis(carborane), [μ -(1',3'-3'-Cl-3'-PPh - -3',1',2'-RhC B H )-2-( -cymene)- -2,1,8-RuC B H ] ( ) and [μ -(1',3'-3'-Cl-3'-PPh…”
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What Can We Learn from the Crystal Structures of Metallacarboranes? by Welch, Alan

“…The determination of the molecular structures of metallacarboranes by X-ray diffraction remains critical to the development of the field, in some cases being…”
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Room-Temperature C----C Bond Cleavage of an Arene by a Metallacarborane by Ellis, David, McKay, David, Macgregor, Stuart A, Rosair, Georgina M, Welch, Alan J

“…On the fly: Reduction of 1,1′‐bis(o‐carborane) and subsequent reaction with a source of {Ru(p‐cymene)}2+ fragments yields a fly‐over bridge species resulting…”
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Exploiting the Electronic Tuneability of Carboranes as Supports for Frustrated Lewis Pairs by Benton, Amanda, Copeland, Zachariah, Mansell, Stephen M, Rosair, Georgina M, Welch, Alan J

“…The first example of a carborane with a catecholborolyl substituent, [1-Bcat-2-Ph- -1,2-C₂B H ] ( ), has been prepared and characterized and shown to act as…”
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Isomerisation of nido -[C 2 B 10 H 12 ] 2- dianions: unprecedented rearrangements and new structural motifs in carborane cluster chemistry by McKay, David, Macgregor, Stuart A, Welch, Alan J

“…Dianionic -[C B ] species are key intermediates in the polyhedral expansion from 12- to 13-vertex carboranes and metallacarboranes, and the isomer adopted by…”
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Crystal structure of 1,1'-bis[1,7-dicarba-closo-dodeca-borane(11)] by Elrick, Lisa, Rosair, Georgina M, Welch, Alan J

“…In the title compound, C4H22B20, the two {1,7-closo-C2B10H11} cages are linked across a centre of inversion, with C-C = 1.5401 (16) Å. The position of the…”
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Bis(phosphine)hydridorhodacarborane Derivatives of 1,1′-Bis(ortho-carborane) and Their Catalysis of Alkene Isomerization and the Hydrosilylation of Acetophenone by Chan, Antony P.Y, Parkinson, John A, Rosair, Georgina M, Welch, Alan J

“…Deprotonation of [7-(1′-closo-1′,2′-C2B10H11)-nido-7,8-C2B9H11]− and reaction with [Rh­(PPh3)3Cl] results in isomerization of the metalated cage and the…”
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Do Gold(III) Complexes Form Hydrogen Bonds? An Exploration of Au III Dicarboranyl Chemistry by Chambrier, Isabelle, Hughes, David L, Jeans, Rebekah J, Welch, Alan J, Budzelaar, Peter H M, Bochmann, Manfred

“…The reaction of 1,1'-Li [(2,2'-C B H ) ] with the cyclometallated gold(III) complex (C^N)AuCl afforded the first examples of gold(III) dicarboranyl complexes…”
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On the Basicity of Carboranylphosphines by Benton, Amanda, Durand, Derek J, Copeland, Zachariah, Watson, James D, Fey, Natalie, Mansell, Stephen M, Rosair, Georgina M, Welch, Alan J

“…Three new carboranylphosphines, [1-(1′-closo-1′,7′-C2B10H11)-7-PPh2-closo-1,7-C2B10H10], [1-(1′–7′-PPh2-closo-1′,7′-C2B10H10)-7-PPh2-closo-1,7-C2B10H10], and…”
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Carborane Substituents Promote Direct Electrophilic Insertion over Reduction-Metalation Reactions by Man, Wing Y., Ellis, David, Rosair, Georgina M., Welch, Alan J.

“…Two‐electron reduction of 1,1′‐bis(o‐carborane) followed by reaction with [Ru(η‐mes)Cl2]2 affords…”
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Heterometalation of 1,1′-Bis(ortho-carborane) by Chan, Antony P. Y, Rosair, Georgina M, Welch, Alan J

“…Deboronation of [8-(1′-closo-1′,2′-C2B10H11)-closo-2,1,8-MC2B9H10] affords diastereoisomeric mixtures of [8-(7′-nido-7′,8′-C2B9H11)-closo-2,1,8-MC2B9H10]−…”
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Arene–Ruthenium Complexes of 1,1′-Bis(ortho-carborane): Synthesis, Characterization, and Catalysis by Jeans, Rebekah J, Chan, Antony P. Y, Riley, Laura E, Taylor, James, Rosair, Georgina M, Welch, Alan J, Sivaev, Igor B

“…Deprotonation of 1,1′-bis­(ortho-carborane) with n BuLi in THF followed by reaction with [RuCl2(p-cymene)]2 affords, in addition to the known compound…”
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Mechanism of Reduction and Metalation of para Carboranes: The Missing 13-Vertex MC₂B₁₀ Isomer by Zlatogorsky, Sergey, Edie, Michael J, Ellis, David, Erhardt, Stefan, Lopez, Maria Elena, Macgregor, Stuart A, Rosair, Georgina M, Welch, Alan J

“…Unanticipated complexity: The first example of a 4,1,11‐MC2B10 metallacarborane (see picture; Ru magenta, B pink, C gray, H white) is reported. Reduction and…”
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Do Gold(III) Complexes Form Hydrogen Bonds? An Exploration of AuIII Dicarboranyl Chemistry by Chambrier, Isabelle, Hughes, David L., Jeans, Rebekah J., Welch, Alan J., Budzelaar, Peter H. M., Bochmann, Manfred

“…The reaction of 1,1′‐Li2[(2,2′‐C2B10H10)2] with the cyclometallated gold(III) complex (C^N)AuCl2 afforded the first examples of gold(III) dicarboranyl…”
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How to Make 8,1,2-closo-MC2B9 Metallacarboranes by Man, Wing Y., Zlatogorsky, Sergey, Tricas, Hugo, Ellis, David, Rosair, Georgina M., Welch, Alan J.

“…Three examples of the rare 8,1,2‐closo‐MC2B9 isomeric form of an icosahedral metallacarborane have been isolated as unexpected trace products in reactions…”
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14-Vertex Heteroboranes with 14 Skeletal Electron Pairs: An Experimental and Computational Study by Robertson, Alasdair P. M., Beattie, Nicholas A., Scott, Greig, Man, Wing Y., Jones, John J., Macgregor, Stuart A., Rosair, Georgina M., Welch, Alan J.

“…Three isomers of [(Cp*Ru)2C2B10H12], the first examples of 14‐vertex heteroboranes containing 14‐skeletal electron pairs, have been synthesized by the direct…”
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Balancing Steric and Electronic Effects in Carbonyl–Phosphine Molybdacarboranes by Robertson, Alasdair P. M., Reckziegel, Alexander, Jones, John J., Rosair, Georgina M., Welch, Alan J.

“…Analysis of the literature structures [(CO)(PPh3)2MC2B9H11] and [(CO)2(PPh3)MC2B9H11] suggests that in [L3MC2B9H11] metallacarboranes the trans influence of CO…”
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A 15-Vertex Heteroborane by McIntosh, Ruaraidh D., Ellis, David, Rosair, Georgina M., Welch, Alan J.

“…Cornering heteroboranes: The 15‐vertex heteroborane 1‐(p‐cymene)‐8,14‐μ‐(CH2)3‐1,8,14‐closo‐RuC2B12H12 has been prepared (see structure; B orange, Ru blue, C…”
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Diphosphaborane and Metalladiphosphaborane: Ligands for Transition-Metal Chemistry by McLellan, Ross, Ellis, David, Rosair, Georgina M., Welch, Alan J.

“…New ligands: The first examples of a neutral heteroborane and a neutral metallaheteroborane acting as simple σ‐bound ligands to transition metals are…”
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