1
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Hannigan MD, Tami JL, Zimmerman PM, McNeil AJ. Rethinking Catalyst Trapping in Ni-Catalyzed Thieno[3,2- b]thiophene Polymerization. Macromolecules 2022; 55:10821-10830. [PMID: 37396500 PMCID: PMC10312364 DOI: 10.1021/acs.macromol.2c01521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Catalyst-transfer polymerization (CTP) is a chain-growth method used to synthesize conjugated polymers. Although CTP works well for most donor-type monomers, the polymerization stalls with thieno[3,2-b]thiophene when using Ni catalysts. Previous reports have rationalized this result by suggesting that the catalyst is trapped in a Ni0 π-complex with the highly electron-rich arene. In this study, evidence is provided that the catalyst trap is more likely a NiII complex that arises from oxidative insertion of Ni0 into the C-S bonds of thieno[3,2-b]thiophene. This result is consistent with the known reactivity of Ni0 complexes toward S-heteroarenes and is supported herein by 31P nuclear magnetic resonance spectra acquired in situ, as well as data collected from small-molecule model reactions and density-functional theory simulations of the polymerization. We propose that this C-S insertion pathway and related off-cycle reactions may be relevant to understanding or enabling the CTP of other monomers with fused thiophenes.
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Affiliation(s)
- Matthew D Hannigan
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Jessica L Tami
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Paul M Zimmerman
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States
| | - Anne J McNeil
- Department of Chemistry, University of Michigan, Ann Arbor, Michigan 48109-1055, United States; Macromolecular Science and Engineering Program, University of Michigan, Ann Arbor, Michigan 48109-2800, United States
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2
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Enachi A, Freytag M, Raeder J, Jones PG, Walter MD. Ligand Exchange Reactions of [(tmeda)NiR 2] (R = CH 2CMe 3, CH 2SiMe 3, CH 2CMe 2Ph) with N-Heterocyclic Carbenes and Bidentate Phosphines. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00262] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andreea Enachi
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Matthias Freytag
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Jan Raeder
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
| | - Marc D. Walter
- Institut für Anorganische und Analytische Chemie, Technische Universität Braunschweig, Hagenring 30, 38106 Braunschweig, Germany
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3
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Martínez‐Prieto LM, Cámpora J. Nickel and Palladium Complexes with Reactive σ‐Metal‐Oxygen Covalent Bonds. Isr J Chem 2020. [DOI: 10.1002/ijch.202000001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Luis M. Martínez‐Prieto
- Instituto de Tecnología Química. CSIC –Universidad Politécnica de Valencia Avda. Los Naranjos, S/N 46022 Valencia Spain
| | - Juan Cámpora
- Instituto de Investigaciones Químicas, CSIC –Universidad de Sevilla. C/ Américo Vespucio, 49. 41092 Seville Spain
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4
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Macaulay CM, Ogawa T, McDonald R, Sydora OL, Stradiotto M, Turculet L. A comparative analysis of hydrosilative amide reduction catalyzed by first-row transition metal (Mn, Fe, Co, and Ni) N-phosphinoamidinate complexes. Dalton Trans 2019; 48:9581-9587. [DOI: 10.1039/c8dt04221g] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Screening reveals (PN)Ni(x) pre-catalysts to be effective for the hydrosilative reduction of amides under mild conditions.
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Affiliation(s)
| | - Takahiko Ogawa
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
| | - Robert McDonald
- X-Ray Crystallography Laboratory
- Department of Chemistry
- University of Alberta
- Edmonton
- Canada
| | - Orson L. Sydora
- Research and Technology
- Chevron Phillips Chemical Company LP
- Kingwood
- USA
| | | | - Laura Turculet
- Department of Chemistry
- Dalhousie University
- Halifax
- Canada
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5
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Takeuchi D, Chiba Y, Takano S, Kurihara H, Kobayashi M, Osakada K. Ethylene polymerization catalyzed by dinickel complexes with a double-decker structure. Polym Chem 2017. [DOI: 10.1039/c7py00333a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Double-decker dinickel catalysts, even without any substituent on an ortho-position, afforded high molecular weight polyethylene with high crystallinity and less branching.
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Affiliation(s)
- Daisuke Takeuchi
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Yuriko Chiba
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | - Shigenaga Takano
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
| | | | | | - Kohtaro Osakada
- Laboratory for Chemistry and Life Science
- Institute of Innovative Research
- Tokyo Institute of Technology
- Yokohama 226-8503
- Japan
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6
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Kruckenberg A, Wadepohl H, Gade LH. Bis(diisopropylphosphinomethyl)amine Nickel(II) and Nickel(0) Complexes: Coordination Chemistry, Reactivity, and Catalytic Decarbonylative C–H Arylation of Benzoxazole. Organometallics 2013. [DOI: 10.1021/om400711d] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Achim Kruckenberg
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches
Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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7
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Albrecht M. Cyclometalation using d-block transition metals: fundamental aspects and recent trends. Chem Rev 2010; 110:576-623. [PMID: 20017477 DOI: 10.1021/cr900279a] [Citation(s) in RCA: 635] [Impact Index Per Article: 45.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Martin Albrecht
- School of Chemistry & Chemical Biology, University College Dublin, Belfield, Dublin 4, Ireland.
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8
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Ariyananda PWG, Kieber-Emmons MT, Yap GPA, Riordan CG. Synthetic analogs for evaluating the influence of N-H...S hydrogen bonds on the formation of thioester in acetyl coenzyme A synthase. Dalton Trans 2009:4359-69. [PMID: 19662314 DOI: 10.1039/b901192g] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of square planar methylnickel(II) complexes, (dppe)Ni(Me)(SAr) (dppe = 1,2-bis(diphenylphosphino)ethane); 2. Ar = phenyl; 3. Ar = pentafluorophenyl; 4. Ar = o-pivaloylaminophenyl; 5. Ar = p-pivaloylaminophenyl; (depe)Ni(Me)(SAr), (depe = 1,2-bis(diethylphosphino)ethane); 7. Ar = phenyl; 8. Ar = pentafluorophenyl; 9. Ar = o-pivaloylaminophenyl; 10. Ar = p-pivaloylaminophenyl), were synthesized via the reaction of (dppe)NiMe(2) (1) and (depe)NiMe(2) (6) with either the corresponding thiol or disulfide. These complexes were characterized by various spectroscopic methods including (31)P NMR, (1)H NMR, (13)C NMR and infrared spectroscopies and in most cases by X-ray diffraction analyses. Solid state and solution measurements establish that 4 and 9 contain intramolecular N-H...S bonds. Carbonylation of the complexes 2-4, 7-10 leads to (dRpe)Ni(CO)(2) and MeC(O)SAr via the intermediacy of the acylnickel adducts, (dRpe)Ni(C(O)Me)(SAr), detected at low temperature by (31)P NMR spectroscopy. Consistent with experimental observations, density functional theory results reveal that the intramolecular hydrogen bond in 9 stabilizes the acylnickel adduct compared with its non-hydrogen-bonded adduct, 10. Oxidative addition of MeC(O)SC(6)F(5) to (dRpe)Ni(COD) followed by spontaneous decarbonylation proceeds in variable yields generating 3 and 8.
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Affiliation(s)
- Piyal W G Ariyananda
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE 19716, USA
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9
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Dubinina GG, Brennessel WW, Miller JL, Vicic DA. Exploring Trifluoromethylation Reactions at Nickel: A Structural and Reactivity Study. Organometallics 2008. [DOI: 10.1021/om800300k] [Citation(s) in RCA: 107] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Galyna G. Dubinina
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822, and X-ray Crystallographic Facility, Department of Chemistry, University of Rochester, Rochester, New York 14627
| | - William W. Brennessel
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822, and X-ray Crystallographic Facility, Department of Chemistry, University of Rochester, Rochester, New York 14627
| | - Jennifer L. Miller
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822, and X-ray Crystallographic Facility, Department of Chemistry, University of Rochester, Rochester, New York 14627
| | - David A. Vicic
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822, and X-ray Crystallographic Facility, Department of Chemistry, University of Rochester, Rochester, New York 14627
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10
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Maya CM, Cámpora J, Carmona E, Matas I, Palma P, Gutiérrez-Puebla E, Monge A. Conjugate Additions of Cyclic Oxygen-Bound Nickel Enolates to α,β-Unsaturated Ketones. Chemistry 2007; 13:3675-87. [PMID: 17253649 DOI: 10.1002/chem.200601357] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
The reaction of nickel enolates displaying a metallacyclic structure with the alpha,beta-unsaturated ketones methyl vinyl ketone (MVK) or methyl propenyl ketone (MPK) takes place in two stages, affording initially bicyclic adducts, which subsequently isomerize to the corresponding open-chain products. The former are generated with high stereoselectivity and can be considered as the products of the [2+4] cycloaddition of the enolate to the enone. The ring opening process involves a prototropic rearrangement that can be catalyzed by water. In the case of the reaction of the parent nickel enolate complex 1 (which displays an unsubstituted Ni-O=C(R)CH2 arrangement) with MVK, a double-addition process has been observed, consisting of two successive cycloaddition/isomerization reactions. The carbonylation of the different cyclic and noncyclic products affords the corresponding lactones that retain the stereochemistry of the organometallic precursors. This methodology allowed trapping the primary product of the reaction of 1 with MPK as the corresponding organic lactone, demonstrating that the cycloaddition process takes place with exo selectivity. DFT modeling of the latter reaction provides further support for a quasi-concerted cycloaddition mechanism, displaying a nonsymmetric transition state in which the C-C and the C-O bond are formed in an asynchronous manner.
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Affiliation(s)
- Celia M Maya
- Instituto de Investigaciones Químicas, Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas, Universidad de Sevilla, Centro de Investigaciones Científicas, Isla de la Cartuja, 41092 Sevilla, Spain
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11
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Schaub T, Backes M, Radius U. Unusual nickel-mediated C–S cleavage of alkyl and aryl sulfoxides. Chem Commun (Camb) 2007:2037-9. [PMID: 17713070 DOI: 10.1039/b618632g] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first examples of transition metal mediated C-S cleavage of sulfoxides containing sp2- and sp3-hybridized carbon bonds attached to the sulfur atom and the first example of a structurally characterized complex featuring an oxygen-bound sulfinyl ligand are presented.
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Affiliation(s)
- Thomas Schaub
- Universität Karlsruhe (TH), Institut für Anorganische Chemie, Engesserstr., Geb. 30.4, D-76131 Karlsruhe, Germany
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12
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Cámpora J, Matas I, Maya CM, Palma P, Álvarez E. Self-Addition of Metallacyclic Nickel Enolate Complexes Stabilized by Monodentate Phosphine Ligands. Organometallics 2006. [DOI: 10.1021/om060183j] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Juan Cámpora
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Inmaculada Matas
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Celia M. Maya
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Pilar Palma
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain
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13
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Cámpora J, Maya CM, Palma P, Carmona E, Gutiérrez E, Ruiz C, Graiff C, Tiripicchio A. Cyclic enolates of Ni and Pd: equilibrium between C- and O-bound tautomers and reactivity studies. Chemistry 2005; 11:6889-904. [PMID: 16175640 DOI: 10.1002/chem.200500622] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
2-acylaryl complexes of Ni and Pd containing chelating diphosphines react with KtBuO to give metallacyclic enolate complexes. While coordination through the carbon atom is preferred in the case of Pd, the nickel O-enolate compounds are formed as the corresponding O-tautomers. Slow equilibration between O- and C-enolate tautomers is observed for the nickel complex with an unsubstituted enolate function (M-O-C=CH(2)). Theoretical DFT calculations suggest that the barrier for the tautomer exchange has its origin in the rigidity of the metallacycle. Whilst the C-enolate tautomer is unreactive towards aldehydes, the corresponding O-enolate adds to MeCHO and PhCHO, giving rise to products that retain the enolate functionality. The carbonylation of these products cleanly leads to the formation of enol lactones in a highly selective manner.
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Affiliation(s)
- Juan Cámpora
- Departamento de Química Inorgánica, Instituto de Investigaciones Químicas, Universidad de Sevilla, Spain.
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14
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Cámpora J, Matas I, Palma P, Graiff C, Tiripicchio A. Fluoride Displacement by Lithium Reagents. An Improved Method for the Synthesis of Nickel Hydroxo, Alkoxo, and Amido Complexes. Organometallics 2005. [DOI: 10.1021/om0489709] [Citation(s) in RCA: 35] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan Cámpora
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla. Avda. Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Parco Area delle Scienze 17A, I-43100 Parma, Italy
| | - Inmaculada Matas
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla. Avda. Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Parco Area delle Scienze 17A, I-43100 Parma, Italy
| | - Pilar Palma
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla. Avda. Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Parco Area delle Scienze 17A, I-43100 Parma, Italy
| | - Claudia Graiff
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla. Avda. Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Parco Area delle Scienze 17A, I-43100 Parma, Italy
| | - Antonio Tiripicchio
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones Científicas-Universidad de Sevilla. Avda. Américo Vespucio 49, 41092 Sevilla, Spain, and Dipartamento di Chimica Generale ed Inorganica, Chimica Analitica, Chimica Fisica, Università di Parma, Parco Area delle Scienze 17A, I-43100 Parma, Italy
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15
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Cámpora J, Palma P, del Río D, Álvarez E. CO Insertion Reactions into the M−OH Bonds of Monomeric Nickel and Palladium Hydroxides. Reversible Decarbonylation of a Hydroxycarbonyl Palladium Complex. Organometallics 2004. [DOI: 10.1021/om040002i] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Juan Cámpora
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones CientíficasUniversidad de Sevilla, Avda. Américo Vespucio s/n, 41092 Sevilla, Spain
| | - Pilar Palma
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones CientíficasUniversidad de Sevilla, Avda. Américo Vespucio s/n, 41092 Sevilla, Spain
| | - Diego del Río
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones CientíficasUniversidad de Sevilla, Avda. Américo Vespucio s/n, 41092 Sevilla, Spain
| | - Eleuterio Álvarez
- Instituto de Investigaciones Químicas, Consejo Superior de Investigaciones CientíficasUniversidad de Sevilla, Avda. Américo Vespucio s/n, 41092 Sevilla, Spain
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16
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Kawamoto T, Kushi Y. Three Types of Nickel(II) Complexes Derived from 2-Substituted Benzothiazoline; Formation of a Tetranuclear Complex by a Sterically Induced Orthometallation Reaction. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2004. [DOI: 10.1246/bcsj.77.289] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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17
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Macgregor SA, Neave GW. Theoretical Study of the CO Migratory Insertion Reactions of Pt(Me)(OMe)(dppe) and Ni(Me)(OR)(bpy) (R = Me, O-p-C6H4CN): Comparison of Group 10 Metal−Alkyl, −Alkoxide, and −Aryloxide Bonds. Organometallics 2004. [DOI: 10.1021/om030590k] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Stuart A. Macgregor
- School of Engineering and Physical Sciences, William H. Perkin Building, Heriot-Watt University, Edinburgh EH14 4AS, U.K
| | - Greg W. Neave
- School of Engineering and Physical Sciences, William H. Perkin Building, Heriot-Watt University, Edinburgh EH14 4AS, U.K
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18
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Neo KE, Neo YC, Chien SW, Tan GK, Wilkins AL, Henderson W, Hor TSA. PdCl[PPh2CH2CH2CHCH2CH2PPh2] as a precursor to homo- and hetero-metallic species directed by ESMS (electrospray ionisation mass spectrometry). Dalton Trans 2004:2281-7. [PMID: 15278119 DOI: 10.1039/b403051f] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The cyclometallated Pd compound [upper bond 1 start]PdCl[PPh(2)CH(2)CH(2)C[upper bond 1 end]HCH(2)CH(2)PPh(2)], obtained from PdCl(2)(Ph(2)P(CH(2))(5)PPh(2)) in refluxing DMF (N,N-dimethylformamide), was characterized by NMR and X-ray single-crystal diffraction analysis. The cyclometallation of MCl(2)(Ph(2)P(CH(2))(5)PPh(2))(M = Pd, Pt) to give and its Pt(ii) analogue was probed using electrospray ionisation mass spectrometry (ESMS). The reactivity of towards neutral ligands such as phosphines and pyridines as well as basic metal complexes such as pyridine-thiolate compounds of Au(i), Hg(ii) and Pt(ii) in solution was also investigated. The results showed that the chloride trans to the Pd-C bond is susceptible to ligand replacement. A number of entry metalloligands was examined in an attempt to establish a route to cyclometallated aggregates and clusters.
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Affiliation(s)
- Kian Eang Neo
- Department of Chemistry, University of Waikato, Private Bag 3105, Hamilton, New Zealand
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19
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Cámpora J, Maya CM, Palma P, Carmona E, Graiff C, Tiripicchio A. Addition reactions of O-bound cyclic nickel enolates to α,β-unsaturated ketones. Chem Commun (Camb) 2003. [DOI: 10.1039/b303062h] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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