1
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Kallmeier F, Matthews AJR, Nelmes GR, Lawson NR, Hicks J. Mechanochemical synthesis of iron aluminyl complexes. Dalton Trans 2024; 53:12450-12454. [PMID: 39011575 DOI: 10.1039/d4dt01774a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/17/2024]
Abstract
A series of iron aluminyl complexes have been synthesised in good crystalline yields from reactions between bulky diamido aluminium iodide complexes and K[Fe(CO)2Cp] in the solid state. The series of metal-metal bonded complexes have been characterised by X-ray crystallography and were investigated using density functional theory to probe the effects of ligand substitution on the Al-Fe bond.
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Affiliation(s)
- Fabian Kallmeier
- Research School of Chemistry, Australian National University, ACT, 2601, Australia.
| | - Aidan J R Matthews
- Research School of Chemistry, Australian National University, ACT, 2601, Australia.
| | - Gareth R Nelmes
- Research School of Chemistry, Australian National University, ACT, 2601, Australia.
| | - Nina R Lawson
- Research School of Chemistry, Australian National University, ACT, 2601, Australia.
| | - Jamie Hicks
- Research School of Chemistry, Australian National University, ACT, 2601, Australia.
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2
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Fernández S, Fernando S, Planas O. Cooperation towards nobility: equipping first-row transition metals with an aluminium sword. Dalton Trans 2023; 52:14259-14286. [PMID: 37740303 DOI: 10.1039/d3dt02722h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/24/2023]
Abstract
The exploration for noble metals substitutes in catalysis has become a highly active area of research, driven by the pursuit of sustainable chemical processes. Although the utilization of base metals holds great potential as an alternative, their successful implementation in predictable catalytic processes necessitates the development of appropriate ligands. Such ligands must be capable of controlling their intricate redox chemistry and promote two-electron events, thus mimicking well-established organometallic processes in noble metal catalysis. While numerous approaches for infusing nobility to base metals have been explored, metal-ligand cooperation has garnered significant attention in recent years. Within this context, aluminium-based ligands offer interesting features to fine-tune the activity of metal centres, but their application in base metal catalysis remains largely unexplored. This perspective seeks to highlight the most recent breakthroughs in the reactivity of heterobimetallic aluminium-base-metal complexes, while also showcasing their potential to develop novel and predictable catalytic transformations. By turning the spotlight on such heterobimetallic species, we aim to inspire chemists to explore aluminium-base-metal species and expand the range of their applications as catalysts.
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Affiliation(s)
- Sergio Fernández
- Queen Mary University of London, School of Physical and Chemical Sciences, Department of Chemistry, Mile End Road, London E1 4NS, UK.
| | - Selwin Fernando
- Queen Mary University of London, School of Physical and Chemical Sciences, Department of Chemistry, Mile End Road, London E1 4NS, UK.
| | - Oriol Planas
- Queen Mary University of London, School of Physical and Chemical Sciences, Department of Chemistry, Mile End Road, London E1 4NS, UK.
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3
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Synthesis and Structural Comparisons of NHC-Alanes. INORGANICS 2022. [DOI: 10.3390/inorganics11010013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022] Open
Abstract
N-heterocyclic carbenes (NHCs) are widely used in organometallic chemistry. Here, we examine the role of NHCs in the stabilisation of aluminium hydrides, AlH3, also known as alanes. This includes an assessment of the various synthetic strategies, comparisons of structural parameters and theoretical insight. Based on percent buried volume (%Vbur) parameters, we report the largest and smallest NHC alanes to date, with noted differences in their observed stability in both the solution and solid state.
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4
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Gorgas N, White AJP, Crimmin MR. Cooperative C-H Bond Activation by a Low-Spin d 6 Iron-Aluminum Complex. J Am Chem Soc 2022; 144:8770-8777. [PMID: 35512338 PMCID: PMC9121387 DOI: 10.1021/jacs.2c02662] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Indexed: 12/29/2022]
Abstract
The reactions of transition metal complexes underpin numerous synthetic processes and catalytic transformations. Typically, this reactivity involves the participation of empty and filled molecular orbitals centered on the transition metal. Kinetically stabilized species, such as octahedral low-spin d6 transition metal complexes, are not expected to participate directly in these reactions. However, novel approaches that exploit metal-ligand cooperativity offer an opportunity to challenge these preconceptions. Here, we show that inclusion of an aluminum-based ligand into the coordination sphere of neutral low-spin d6 iron complex leads to unexpected reactivity. Complexes featuring an unsupported Fe-Al bond are capable of the intermolecular C-H bond activation of pyridines. Mechanistic analysis suggests that C-H activation proceeds through a reductive deprotonation in which the two metal centers (Fe and Al) act like a frustrated Lewis pair. The key to this behavior is a ground state destabilization of the d6 iron complex, brought about by the inclusion of the electropositive aluminum-based ligand. These findings have immediate implications for the design of reagents and catalysts based on first-row transition metals.
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Affiliation(s)
- Nikolaus Gorgas
- Department of Chemistry, Imperial
College London, White City, London W12 0BZ, United
Kingdom
| | - Andrew J. P. White
- Department of Chemistry, Imperial
College London, White City, London W12 0BZ, United
Kingdom
| | - Mark R. Crimmin
- Department of Chemistry, Imperial
College London, White City, London W12 0BZ, United
Kingdom
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5
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Perutz RN, Sabo‐Etienne S, Weller AS. Metathesis by Partner Interchange in σ‐Bond Ligands: Expanding Applications of the σ‐CAM Mechanism. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202111462] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
| | - Sylviane Sabo‐Etienne
- CNRS LCC (Laboratoire de Chimie de Coordination) 205 route de Narbonne, BP 44099 F-31077 Toulouse Cedex 4 France
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6
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Aluminum(III) di- and monochlorides incorporating an N,N'-chelating iminophosphonamide ligand: synthesis and structures. MENDELEEV COMMUNICATIONS 2022. [DOI: 10.1016/j.mencom.2022.01.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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7
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Roy MMD, Omaña AA, Wilson ASS, Hill MS, Aldridge S, Rivard E. Molecular Main Group Metal Hydrides. Chem Rev 2021; 121:12784-12965. [PMID: 34450005 DOI: 10.1021/acs.chemrev.1c00278] [Citation(s) in RCA: 124] [Impact Index Per Article: 41.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review serves to document advances in the synthesis, versatile bonding, and reactivity of molecular main group metal hydrides within Groups 1, 2, and 12-16. Particular attention will be given to the emerging use of said hydrides in the rapidly expanding field of Main Group element-mediated catalysis. While this review is comprehensive in nature, focus will be given to research appearing in the open literature since 2001.
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Affiliation(s)
- Matthew M D Roy
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Alvaro A Omaña
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
| | - Andrew S S Wilson
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Michael S Hill
- Department of Chemistry, University of Bath, Avon BA2 7AY, United Kingdom
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford OX1 3QR, United Kingdom
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta T6G 2G2, Canada
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8
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Perutz RN, Sabo-Etienne S, Weller AS. Metathesis by Partner Interchange in σ-Bond Ligands: Expanding Applications of the σ-CAM Mechanism. Angew Chem Int Ed Engl 2021; 61:e202111462. [PMID: 34694734 PMCID: PMC9299125 DOI: 10.1002/anie.202111462] [Citation(s) in RCA: 24] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Indexed: 12/13/2022]
Abstract
In 2007 two of us defined the σ‐Complex Assisted Metathesis mechanism (Perutz and Sabo‐Etienne, Angew. Chem. Int. Ed. 2007, 46, 2578–2592), that is, the σ‐CAM concept. This new approach to reaction mechanisms brought together metathesis reactions involving the formation of a variety of metal–element bonds through partner‐interchange of σ‐bond complexes. The key concept that defines a σ‐CAM process is a single transition state for metathesis that is connected by two intermediates that are σ‐bond complexes while the oxidation state of the metal remains constant in precursor, intermediates and product. This mechanism is appropriate in situations where σ‐bond complexes have been isolated or computed as well‐defined minima. Unlike several other mechanisms, it does not define the nature of the transition state. In this review, we highlight advances in the characterization and dynamic rearrangements of σ‐bond complexes, most notably alkane and zincane complexes, but also different geometries of silane and borane complexes. We set out a selection of catalytic and stoichiometric examples of the σ‐CAM mechanism that are supported by strong experimental and/or computational evidence. We then draw on these examples to demonstrate that the scope of the σ‐CAM mechanism has expanded to classes of reaction not envisaged in 2007 (additional σ‐bond ligands, agostic complexes, sp2‐carbon, surfaces). Finally, we provide a critical comparison to alternative mechanisms for metathesis of metal–element bonds.
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Affiliation(s)
- Robin N Perutz
- Department of Chemistry, University of York, York, YO10 5DD, UK
| | - Sylviane Sabo-Etienne
- CNRS, LCC (Laboratoire de Chimie de Coordination), 205 route de Narbonne, BP 44099, F-31077, Toulouse Cedex 4, France
| | - Andrew S Weller
- Department of Chemistry, University of York, York, YO10 5DD, UK
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9
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Dehmel M, Köhler A, Görls H, Kretschmer R. Synthesis, characterization, and reactivity of group 13 hydride complexes based on amido-amine ligands. Dalton Trans 2021; 50:8434-8445. [PMID: 34037004 DOI: 10.1039/d1dt01454d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The preparation of group 13 hydride complexes supported by N,N',N'-substituted 1,2-ethanediamines is reported. Dihydridoalanes LAlH2, for which the aggregation behaviour in solution and in the solid state is modulated by the steric bulk of the aryl substituent, readily react with elemental sulphur affording dinuclear aluminium sulphide complexes. Chloridohydrido trielanes LEHCl (E = B, Al, Ga) have been synthesized as well starting from the hydrochloride salts of the protio-ligands and the chlorido substituent within LAlHCl is readily replaced using Li[N(SiMe3)2]. Depending on the steric bulk of the ligand, the chloridohydrido gallane gives rise to a dinuclear gallium(ii) complex upon heating. All twelve complexes reported in here have been fully characterized and the solid-state structure of eleven complexes has been examined by means of single-crystal X-ray diffraction analysis.
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Affiliation(s)
- Maximilian Dehmel
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Angelina Köhler
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Helmar Görls
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany
| | - Robert Kretschmer
- Institute of Inorganic and Analytical Chemistry (IAAC), Friedrich Schiller University Jena, Humboldtstraße 8, 07743 Jena, Germany and Jena Center for Soft Matter (JCSM), Friedrich Schiller University Jena Philosophenweg 7, 07743 Jena, Germany.
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10
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Perez-Jimenez M, Curado N, Maya C, Campos J, Jover J, Alvarez S, Carmona E. Coordination of LiH Molecules to Mo≣Mo Bonds: Experimental and Computational Studies on Mo 2LiH 2, Mo 2Li 2H 4, and Mo 6Li 9H 18 Clusters. J Am Chem Soc 2021; 143:5222-5230. [PMID: 33755447 PMCID: PMC9157502 DOI: 10.1021/jacs.1c01602] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
![]()
The reactions of LiAlH4 as the source of LiH with complexes
that contain (H)Mo≣Mo and (H)Mo≣Mo(H) cores stabilized
by the coordination of bulky AdDipp2 ligands result in
the respective coordination of one and two molecules of (thf)LiH,
with the generation of complexes exhibiting one and two HLi(thf)H
ligands extending across the Mo≣Mo bond (AdDipp2 = HC(NDipp)2; Dipp = 2,6-iPr2C6H3; thf = tetrahydrofuran,
C4H8O). A theoretical study reveals the formation
of Mo–H–Li three-center–two-electron bonds, supplemented
by the coordination of the Mo≣Mo bond to the Li ion. Attempts
to construct a [Mo2{HLi(thf)H}3(AdDipp2)] molecular architecture led to spontaneous trimerization and the
formation of a chiral, hydride-rich Mo6Li9H18 supramolecular organization that is robust enough to withstand
the substitution of lithium-solvating molecules of tetrahydrofuran
by pyridine or 4-dimethylaminopyridine.
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Affiliation(s)
- Marina Perez-Jimenez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Natalia Curado
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Celia Maya
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Jesus Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
| | - Jesus Jover
- Department de Química Inorgànica i Orgànica, Secció de Química Inorgànica, and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Santiago Alvarez
- Department de Química Inorgànica i Orgànica, Secció de Química Inorgànica, and Institut de Química Teòrica i Computacional, Universitat de Barcelona, Martí i Franquès 1-11, 08028 Barcelona, Spain
| | - Ernesto Carmona
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC), University of Sevilla, Avda. Américo Vespucio, 49, 41092 Sevilla, Spain
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11
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Huang J, Zheng X, Del Rosal I, Zhao B, Maron L, Xu X. Nickel(0)-Induced β-H Elimination of Magnesium Alkyls: Formation and Reactivity of Heterometallic Hydrides. Inorg Chem 2020; 59:13473-13480. [PMID: 32877185 DOI: 10.1021/acs.inorgchem.0c01885] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
We report the synthesis and reactivity of heterometallic Mg-Ni complexes with bridging hydrides. Treatment of magnesium monoalkyl complexes, which are supported by a tridentate β-diketiminato ligand bearing a pendent phosphine group, with nickel(0) reagent Ni(COD)2 (COD: 1,5-cyclooctadiene) at a molar ratio of 2:1 resulted in the formation of a heterotrimetallic hydride-bridged [Mg-Ni-Mg] complex via facile elimination of the corresponding alkenes. A heterobimetallic hydride-bridged [Mg-Ni] complex served as an intermediate species for the formation of the [Mg-Ni-Mg] complex. Computational studies revealed that the reaction was initiated by coordination of nickel to magnesium followed by an alkyl group transfer. β-H elimination at the nickel center subsequently occurred to give the heterometallic hydride-bridged complex. Density functional theory analysis also highlighted a three-center two-electron interaction for the Mg-H-Ni unit. The hydride-bridged [Mg-Ni-Mg] complex showed diverse reactivity toward unsaturated small molecules. For instance, reactions with isocyanides provided heterometallic species by coordination of isocyanides to the nickel center, with no subsequent reduction detected. Isocyanides could also be dissociated at 80 °C. In contrast, hydromagnesiation occurred upon treatment of the heterotrimetallic hydride with carbodiimides, affording C3-symmetric complexes with three heteroleptic magnesium mixed β-diketiminate/amidinate moieties. The hydride-bridged heterotrimetallic complex underwent dehydrogenation reaction with phenyl acetylene to produce an acetylide-bridged [Mg-Ni-Mg] complex.
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Affiliation(s)
- Jiasu Huang
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Xizhou Zheng
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Iker Del Rosal
- LPCNO, CNRS, and INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Bei Zhao
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
| | - Laurent Maron
- LPCNO, CNRS, and INSA, Université Paul Sabatier, 135 Avenue de Rangueil, 31077 Toulouse, France
| | - Xin Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P.R. China
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12
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Sohail M, Ashraf MZ, Nadeem R, Bibi S, Rehman R, Iqbal MA. Techniques in the synthesis of organometallic compounds of tungsten. REV INORG CHEM 2020. [DOI: 10.1515/revic-2019-0013] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
AbstractTungsten is an elegant substance, and its compounds have great significance because of their extensive range of applications in diverse fields such as in gas sensors, photocatalysis, lithium ion batteries, H2production, electrochromic devices, dyed sensitized solar cells, microchip technology, and liquid crystal displays. Tungsten compounds exhibit a more efficient catalytic behavior, and tungsten-dependent enzymes generally catalyze the transfer of an oxygen atom to or from a physiological donor/acceptor with the metal center. Furthermore, tungsten has an n-type semiconductor band gap. Tungsten forms complexes by reacting with several elements such as H, C, N, O, and P as well as other numerous inorganic elements. Interestingly, all tungsten reactions occur at ambient temperature, usually with tetrahydrofuran and dichloromethane under vacuum. Tungsten has extraordinarily high-temperature properties, making it very useful for X-ray production and heating elements in furnaces. Tungsten coordinates with diverse nonmetallic elements and ligands and produces interesting compounds. This article describes an overview of the synthesis of various organometallic compounds of tungsten.
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Affiliation(s)
- Muhammad Sohail
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | | | - Raziya Nadeem
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Shamsa Bibi
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
| | - Rabia Rehman
- Institute of Chemistry, University of the Punjab, Lahore 5400, Pakistan
| | - Muhammad Adnan Iqbal
- Department of Chemistry, University of Agriculture, Faisalabad, Pakistan
- Organometallic and Coordination Chemistry Laboratory, University of Agriculture, Faisalabad 38040, Pakistan
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13
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Raubenheimer HG, Dobrzańska L. Interaction between Cu and Ag free ions and central metals in complexes with XHn units (X = B, Si, N, O, C, Al, Zn, Mg; n = 1, 2). Coord Chem Rev 2020. [DOI: 10.1016/j.ccr.2019.213052] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
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14
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Hooper TN, Lau S, Chen W, Brown RK, Garçon M, Luong K, Barrow NS, Tatton AS, Sackman GA, Richardson C, White AJP, Cooper RI, Edwards AJ, Casely IJ, Crimmin MR. The partial dehydrogenation of aluminium dihydrides. Chem Sci 2019; 10:8083-8093. [PMID: 31762968 PMCID: PMC6855256 DOI: 10.1039/c9sc02750e] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Accepted: 08/12/2019] [Indexed: 11/21/2022] Open
Abstract
The reactions of a series of β-diketiminate stabilised aluminium dihydrides with ruthenium bis(phosphine), palladium bis(phosphine) and palladium cyclopentadienyl complexes is reported.
The reactions of a series of β-diketiminate stabilised aluminium dihydrides with ruthenium bis(phosphine), palladium bis(phosphine) and palladium cyclopentadienyl complexes is reported. In the case of ruthenium, alane coordination occurs with no evidence for hydrogen loss resulting in the formation of ruthenium complexes with a pseudo–octahedral geometry and cis-relation of phosphine ligands. These new ruthenium complexes have been characterised by multinuclear and variable temperature NMR spectroscopy, IR spectroscopy and single crystal X-ray diffraction. In the case of palladium, a series of structural snapshots of alane dehydrogenation have been isolated and crystallographically characterised. Variation of the palladium precursor and ligand on aluminium allows kinetic control over reactivity and isolation of intermetallic complexes that contain new Pd–Al and Pd–Pd interactions. These complexes differ by the ratio of H : Al (2 : 1, 1.5 : 1 and 1 : 1) with lower hydride content species forming with dihydrogen loss. A combination of X-ray and neutron diffraction studies have been used to interrogate the structures and provide confidence in the assignment of the number and position of hydride ligands. 27Al MAS NMR spectroscopy and calculations (DFT, QTAIM) have been used to gain an understanding of the dehydrogenation processes. The latter provide evidence for dehydrogenation being accompanied by metal–metal bond formation and an increased negative charge on Al due to the covalency of the new metal–metal bonds. To the best of our knowledge, we present the first structural information for intermediate species in alane dehydrogenation including a rare neutron diffraction study of a palladium–aluminium hydride complex. Furthermore, as part of these studies we have obtained the first SS 27Al NMR data on an aluminium(i) complex. Our findings are relevant to hydrogen storage, materials chemistry and catalysis.
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Affiliation(s)
- Thomas N Hooper
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Samantha Lau
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Wenyi Chen
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Ryan K Brown
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Martí Garçon
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Karen Luong
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Nathan S Barrow
- Johnson Matthey Technology Centre , Blounts Court, Sonning Common , Reading , RG4 9NH , UK
| | - Andrew S Tatton
- Department of Materials , University of Oxford , OX1 3PH , UK
| | - George A Sackman
- Australian Centre for Neutron Scattering , Australian Nuclear Science and Technology Organisation , Australia.,Chemical Crystallography , Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford , OX1 3TA , UK
| | | | - Andrew J P White
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
| | - Richard I Cooper
- Chemical Crystallography , Department of Chemistry , University of Oxford , 12 Mansfield Road , Oxford , OX1 3TA , UK
| | - Alison J Edwards
- Australian Centre for Neutron Scattering , Australian Nuclear Science and Technology Organisation , Australia
| | - Ian J Casely
- Johnson Matthey Technology Centre , Blounts Court, Sonning Common , Reading , RG4 9NH , UK
| | - Mark R Crimmin
- Department of Chemistry , Molecular Sciences Research Hub , Imperial College London , 80 Wood Lane, Shepherds Bush , London , W12 0BZ , UK .
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15
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Liu Y, Li J, Ma X, Yang Z, Roesky HW. The chemistry of aluminum(I) with β-diketiminate ligands and pentamethylcyclopentadienyl-substituents: Synthesis, reactivity and applications. Coord Chem Rev 2018. [DOI: 10.1016/j.ccr.2018.07.004] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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16
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Caise A, Jones D, Kolychev EL, Hicks J, Goicoechea JM, Aldridge S. On the Viability of Catalytic Turnover via Al−O/B−H Metathesis: The Reactivity of β-Diketiminate Aluminium Hydrides towards CO2
and Boranes. Chemistry 2018; 24:13624-13635. [DOI: 10.1002/chem.201802603] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2018] [Revised: 06/19/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Alexa Caise
- Inorganic Chemistry Laboratory, Department of Chemistry; University of Oxford; South Parks Road Oxford OX1 3QR UK
| | - Dafydd Jones
- Inorganic Chemistry Laboratory, Department of Chemistry; University of Oxford; South Parks Road Oxford OX1 3QR UK
| | - Eugene L. Kolychev
- Inorganic Chemistry Laboratory, Department of Chemistry; University of Oxford; South Parks Road Oxford OX1 3QR UK
| | - Jamie Hicks
- Inorganic Chemistry Laboratory, Department of Chemistry; University of Oxford; South Parks Road Oxford OX1 3QR UK
| | - Jose M. Goicoechea
- Inorganic Chemistry Laboratory, Department of Chemistry; University of Oxford; South Parks Road Oxford OX1 3QR UK
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry; University of Oxford; South Parks Road Oxford OX1 3QR UK
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Caise A, Abdalla JAB, Tirfoin R, Edwards AJ, Aldridge S. A Gallium Hydride as an Oxidizing Agent: Direct Synthesis of IrVComplexes via Ga−H Bond Activation. Chemistry 2017; 23:16906-16913. [DOI: 10.1002/chem.201704372] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Alexa Caise
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
| | - Joseph A. B. Abdalla
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
| | - Rémi Tirfoin
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
| | - Alison J. Edwards
- Australian Centre for Neutron Scattering; Australian Nuclear Science and Technology Organisation; New Illawarra Road Lucas Heights NSW 2234 Australia
| | - Simon Aldridge
- Department of Chemistry; University of Oxford; Inorganic Chemistry Laboratory; South Parks Road Oxford OX1 3QR UK)
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Ekkert O, White AJP, Crimmin MR. Stereoisomerism of bis(σ-Zincane) Complexes: Evidence for an Intramolecular Pathway. Chemistry 2017; 23:5682-5686. [PMID: 28334469 DOI: 10.1002/chem.201701207] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Indexed: 11/06/2022]
Abstract
The first bis(σ-zincane) complexes, heterotri- metallic species [M(CO)4 (η2 -HZnBDI)2 ], have been prepared (BDI=κ2 -{2,6-(iPr)2 C6 H3 NCMe}2 CH). For M=Cr, a single stereoisomer is observed in solution and the solid-state. For M=Mo and W, cis and trans isomers were found to reversibly interconvert at 297 K. Despite the huge steric demands of the ligand on zinc, the cis isomer was found to be the most thermodynamically stable in all cases. The activation parameters for the isomerisation when M=Mo are ΔH≠ =20.8 kcal mol-1 and ΔS≠ =-12.8 cal K-1 mol-1 . In combination with DFT calculations, the negative activation entropy suggests an intramolecular rotation mechanism for isomerisation.
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Affiliation(s)
- Olga Ekkert
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Andrew J P White
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Mark R Crimmin
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
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Butler MJ, Crimmin MR. Magnesium, zinc, aluminium and gallium hydride complexes of the transition metals. Chem Commun (Camb) 2017; 53:1348-1365. [PMID: 28070586 PMCID: PMC5777540 DOI: 10.1039/c6cc05702k] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2016] [Accepted: 12/23/2016] [Indexed: 12/21/2022]
Abstract
The preparation and applications of heterobimetallic complexes continue to occupy researchers in the fields of organometallic, main group, and coordination chemistry. This interest stems from the promise these complexes hold as precursors to materials, reagents in synthesis and as new catalysis. Here we survey and organise the state-of-the-art understanding of the TM-H-M linkage (M = Mg, Zn, Al, Ga). We discuss the structure and bonding in these complexes, their known reactivity, and their largely unrealised potential in catalysis.
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Affiliation(s)
- Michael J Butler
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, UK.
| | - Mark R Crimmin
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, UK.
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20
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Ekkert O, White AJP, Crimmin MR. Trajectory of Approach of a Zinc-Hydrogen Bond to Transition Metals. Angew Chem Int Ed Engl 2016; 55:16031-16034. [PMID: 27879025 DOI: 10.1002/anie.201608599] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2016] [Indexed: 11/10/2022]
Abstract
Through a dramatic advance in the coordination chemistry of the zinc-hydride bond, we describe the trajectory for the approach of this bond to transition metals. The dynamic reaction coordinate was interrogated through analysis of a series of solid state structures and is one in which the TM-H-Zn angle becomes increasingly acute as the TM-Zn distance decreases. Parallels may be drawn with the oxidative addition of boron-hydrogen and silicon-hydrogen bonds to transition metal centers.
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Affiliation(s)
- Olga Ekkert
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Andrew J P White
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
| | - Mark R Crimmin
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK
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21
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Ekkert O, White AJP, Crimmin MR. Trajectory of Approach of a Zinc-Hydrogen Bond to Transition Metals. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201608599] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Olga Ekkert
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
| | - Andrew J. P. White
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
| | - Mark R. Crimmin
- Department of Chemistry; Imperial College London; South Kensington London SW7 2AZ UK
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22
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Jakhar VK, Barman MK, Nembenna S. Aluminum Monohydride Catalyzed Selective Hydroboration of Carbonyl Compounds. Org Lett 2016; 18:4710-3. [PMID: 27571142 DOI: 10.1021/acs.orglett.6b02310] [Citation(s) in RCA: 138] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The well-defined aluminum monohydride compound [{(2,4,6-Me3-C6H2)NC(Me)}2(Me)(H)]AlH·(NMe2Et) (1) catalyzes hydroboration of a wide range of aldehydes and ketones under mild reaction conditions. Moreover, compound 1 displayed chemoselective hydroboration of aldehydes over ketones at rt.
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Affiliation(s)
- Vineet Kumar Jakhar
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) , Bhubaneswar 752 050, India
| | - Milan Kr Barman
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) , Bhubaneswar 752 050, India
| | - Sharanappa Nembenna
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) , Bhubaneswar 752 050, India
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23
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Ekkert O, White AJP, Toms H, Crimmin MR. Addition of aluminium, zinc and magnesium hydrides to rhodium(iii). Chem Sci 2015; 6:5617-5622. [PMID: 28757949 PMCID: PMC5510526 DOI: 10.1039/c5sc01309g] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2015] [Accepted: 07/03/2015] [Indexed: 11/21/2022] Open
Abstract
We report the addition of M-H bonds (M = Al, Zn, Mg) to a Rh(iii) intermediate generated from the reductive elimination of triethylsilane from [Cp*Rh(H)2(SiEt3)2]. A series of new heterobimetallic complexes possessing Rh-M bonds have been isolated and characterised by a number of spectroscopic (1H, 29Si, 13C, 103Rh NMR, infrared, and X-ray diffraction) and computational techniques (NBO and QTAIM analysis). Experimental and computational data are consistent with cleavage of the M-H bond upon addition to rhodium with formation of new Rh-M and Rh-H bonds. Upon photolysis the Al analogue of this series undergoes a further elimination reaction producing triethylsilane and a highly unusual Rh2Al2H4 containing cluster proposed to contain an Al(i) bridging ligand.
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Affiliation(s)
- Olga Ekkert
- Department , of Chemistry , Imperial College London , South Kensington , London , SW7 2AZ , UK .
| | - Andrew J P White
- Department , of Chemistry , Imperial College London , South Kensington , London , SW7 2AZ , UK .
| | - Harold Toms
- The School of Biological and Chemical Sciences , Queen Mary, University of London , Mile End Road , London E1 4NS , UK
| | - Mark R Crimmin
- Department , of Chemistry , Imperial College London , South Kensington , London , SW7 2AZ , UK .
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25
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Crimmin MR, Butler MJ, White AJP. Oxidative addition of carbon-fluorine and carbon-oxygen bonds to Al(I). Chem Commun (Camb) 2015; 51:15994-6. [PMID: 26389715 PMCID: PMC4621529 DOI: 10.1039/c5cc07140b] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Addition of fluoroarenes, fluoroalkanes or benzofuran to [{(2,6-iPr2C6H3NCMe)2CH}Al] results in facile oxidative addition of either a C–F or C–O bond to the Al(i) centre.
Addition of fluoroarenes, fluoroalkanes or benzofuran to [{(2,6-iPr2C6H3NCMe)2CH}Al] results in facile oxidative addition of either a C–F or C–O bond to the Al(i) centre.
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Affiliation(s)
- Mark R Crimmin
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, UK.
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26
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Riddlestone IM, Abdalla JA, Aldridge S. Coordination and Activation of EH Bonds (E=B, Al, Ga) at Transition Metal Centers. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2015. [DOI: 10.1016/bs.adomc.2015.02.003] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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Devillard M, Nicolas E, Ehlers AW, Backs J, Mallet-Ladeira S, Bouhadir G, Slootweg JC, Uhl W, Bourissou D. Dative Au→Al interactions: crystallographic characterization and computational analysis. Chemistry 2014; 21:74-9. [PMID: 25418872 DOI: 10.1002/chem.201405610] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2014] [Indexed: 11/06/2022]
Abstract
Hitherto unknown Au→Al interactions have been evidenced upon coordination of the geminal phosphorus-aluminum Lewis pair Mes2 PC(=CHPh)AltBu2 (Mes=2,4,6-trimethylphenyl). Four different gold(I) complexes featuring alkyl (Me), aryl (Ph, C6F5), and alkynyl (C≡CPh) co-ligands have been prepared. X-ray diffraction analyses show that P→Au→Al bridging coordination induces noticeable bending of the ligand (the PCAl bond angle shrinks by 13°). This new type of transition metal→Lewis acid interaction has been analyzed by DFT calculations.
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Affiliation(s)
- Marc Devillard
- Université de Toulouse, UPS, LHFA, 118 route de Narbonne, 31062 Toulouse (France); CNRS, LHFA, UMR 5069, 31062 Toulouse (France)
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Abdalla JAB, Riddlestone IM, Turner J, Kaufman PA, Tirfoin R, Phillips N, Aldridge S. Coordination and Activation of AlH and GaH Bonds. Chemistry 2014; 20:17624-34. [DOI: 10.1002/chem.201405018] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2014] [Revised: 09/30/2014] [Indexed: 11/07/2022]
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29
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Arrowsmith M, Maitland B, Kociok-Köhn G, Stasch A, Jones C, Hill MS. Mononuclear Three-Coordinate Magnesium Complexes of a Highly Sterically Encumbered β-Diketiminate Ligand. Inorg Chem 2014; 53:10543-52. [DOI: 10.1021/ic501638v] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Merle Arrowsmith
- Department
of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Brant Maitland
- School of Chemistry, PO Box 23, Monash University, Melbourne, Victoria 3800, Australia
| | - Gabriele Kociok-Köhn
- Department
of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
| | - Andreas Stasch
- School of Chemistry, PO Box 23, Monash University, Melbourne, Victoria 3800, Australia
| | - Cameron Jones
- School of Chemistry, PO Box 23, Monash University, Melbourne, Victoria 3800, Australia
| | - Michael S. Hill
- Department
of Chemistry, University of Bath, Claverton Down, Bath, BA2 7AY, United Kingdom
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30
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Nako AE, Tan QW, White AJP, Crimmin MR. Weakly Coordinated Zinc and Aluminum σ-Complexes of Copper(I). Organometallics 2014. [DOI: 10.1021/om500380k] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Adi E. Nako
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - Qian Wen Tan
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - Andrew J. P. White
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
| | - Mark R. Crimmin
- Department
of Chemistry, Imperial College London, South Kensington, London SW7 2AZ, U.K
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31
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Oishi M, Endo T, Oshima M, Suzuki H. Aluminum-stabilized low-spin iron(II) hydrido complexes of 1,4,7-trimethyl-1,4,7-triazacyclononane. Inorg Chem 2014; 53:5100-8. [PMID: 24801527 DOI: 10.1021/ic500195q] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We investigated herein the reactions of (Me3tacn)FeCln (1a: n = 3, 1b: n = 2) with common aluminum hydride reagents and a bulky dihydridoaluminate {Li(ether)2}{Al(OC6H3-2,6-(t)Bu2)}(μ-H)2, which yielded the diamagnetic hydrido complexes 2-4 containing Fe(II) and Al(III). In particular, the use of divalent 1b afforded excellent isolated yields. The structures of 2-4 were determined using spectroscopic and crystallographic analyses. The crystal structures showed distorted octahedral Fe centers and fairly short Fe-Al distances [2.19-2.24 Å]. The structures of cation moiety 2 and neutral complex 4 were further probed using DFT calculations, which indicated a stable low-spin Fe(II) state and strongly electron-donating nature of the (Me3tacn)FeH3 fragment toward the Al(III) center.
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Affiliation(s)
- Masataka Oishi
- Graduate School of Science and Engineering, Tokyo Institute of Technology , 2-12-1 O-okayama, Meguro-ku, Tokyo 152-8552, Japan
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Franz D, Irran E, Inoue S. Synthesis, characterization and reactivity of an imidazolin-2-iminato aluminium dihydride. Dalton Trans 2014; 43:4451-61. [DOI: 10.1039/c3dt52637b] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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34
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Barbon SM, Staroverov VN, Boyle PD, Gilroy JB. Hydrogen-bond-supported dimeric boron complexes of potentially tetradentate β-diketiminate ligands. Dalton Trans 2014; 43:240-50. [DOI: 10.1039/c3dt52188e] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Fedushkin IL, Markina OV, Lukoyanov AN, Morozov AG, Baranov EV, Maslov MO, Ketkov SY. Boron complexes of redox-active diimine ligand. Dalton Trans 2013; 42:7952-61. [DOI: 10.1039/c3dt33055a] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Turner J, Abdalla JAB, Bates JI, Tirfoin R, Kelly MJ, Phillips N, Aldridge S. Formation of sub-valent carbenoid ligands by metal-mediated dehydrogenation chemistry: coordination and activation of H2Ga{(NDippCMe)2CH}. Chem Sci 2013. [DOI: 10.1039/c3sc52133h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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37
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Nako AE, Gates SJ, White AJP, Crimmin MR. Preparation and properties of a series of structurally diverse aluminium hydrides supported by β-diketiminate and bis(amide) ligands. Dalton Trans 2013; 42:15199-206. [PMID: 23999557 DOI: 10.1039/c3dt52148f] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Adi E Nako
- Department of Chemistry, Imperial College London, South Kensington, London, SW7 2AZ, UK.
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Riddlestone IM, Urbano J, Phillips N, Kelly MJ, Vidovic D, Bates JI, Taylor R, Aldridge S. Salt metathesis for the synthesis of M–Al and M–H–Al bonds. Dalton Trans 2013; 42:249-58. [DOI: 10.1039/c2dt31974h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Abdalla JAB, Riddlestone IM, Tirfoin R, Phillips N, Bates JI, Aldridge S. Al–H σ-bond coordination: expanded ring carbene adducts of AlH3 as neutral bi- and tri-functional donor ligands. Chem Commun (Camb) 2013; 49:5547-9. [DOI: 10.1039/c3cc42342e] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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41
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Green JC, Green MLH, Parkin G. The occurrence and representation of three-centre two-electron bonds in covalent inorganic compounds. Chem Commun (Camb) 2012; 48:11481-503. [DOI: 10.1039/c2cc35304k] [Citation(s) in RCA: 222] [Impact Index Per Article: 18.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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