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Jordan R, Schäfer SA, Sander N, Maisuls I, Hamacher C, Friedel J, Strassert CA, Klein A. Assessing the Character of the C 6F 5 Ligand from the Electrochemical and Photophysical Properties of [Ni(C 6F 5) 2(N ∧N)] Complexes. Inorg Chem 2024; 63:11079-11091. [PMID: 38843524 DOI: 10.1021/acs.inorgchem.4c00649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/18/2024]
Abstract
Organonickel complexes containing α-diimine ligands [Ni(C6F5)2(N∧N)] (N∧N = 2,2'-bipyridine (bpy), 2,9-dimethyl-1,10-phenanthroline (dmphen), 3,4,7,8-tetramethyl-1,10-phenanthroline (tmphen), dipyrido[3,2-a:2',3'-c]phenazine (dppz), 1,4-bis(isopropyl)-1,4-diazabutadiene (iPr-DAB), and 1,4-bis(2,6-dimethylphenyl)-1,4-diazabutadiene (Xyl-DAB) were prepared and studied structurally, spectroscopically, and electrochemically. Their molecular structures from single-crystal X-ray diffraction show near-perfect square planar Ni(II) coordination except in the case of dmphen. Primary reversible electrochemical reductions in the range from -1 to -2 V vs ferrocene/ferrocenium couple lead to mainly diimine-localized radical anion complexes, while secondary reductions in the range from -2 to -2.5 V lead to dianion complexes, as shown through spectroelectrochemistry. Irreversible metal-centered oxidations at around 0.7 V result in rapid aryl-aryl reductive elimination and formation of decafluorobiphenyl. No photoluminescence was detected for the complexes containing chromophoric α-diimine ligands at room temperature. At 77 K in frozen glassy 2-Me-THF matrices, weak photoluminescence was detected for the dmphen and tmphen derivatives, with broad emission bands peaking around 570 nm. All results are rationalized with the support of (TD-)DFT calculations, highlighting the role of the C6F5 ligand in different systems.
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Affiliation(s)
- Rose Jordan
- Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Faculty for Mathematics and Natural Sciences, Greinstrasse 6, D-50939 Köln, Germany
| | - Sascha A Schäfer
- Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Faculty for Mathematics and Natural Sciences, Greinstrasse 6, D-50939 Köln, Germany
| | - Noah Sander
- Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Faculty for Mathematics and Natural Sciences, Greinstrasse 6, D-50939 Köln, Germany
| | - Ivan Maisuls
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Heisenbergstraße 11, 48149 Münster, Germany
| | - Claudia Hamacher
- Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Faculty for Mathematics and Natural Sciences, Greinstrasse 6, D-50939 Köln, Germany
| | - Joshua Friedel
- Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Faculty for Mathematics and Natural Sciences, Greinstrasse 6, D-50939 Köln, Germany
| | - Cristian A Strassert
- Institut für Anorganische und Analytische Chemie, Universität Münster, Corrensstraße 28/30, 48149 Münster, Germany
- CeNTech, CiMIC, SoN, Heisenbergstraße 11, 48149 Münster, Germany
| | - Axel Klein
- Department of Chemistry and Biochemistry, Institute for Inorganic Chemistry, University of Cologne, Faculty for Mathematics and Natural Sciences, Greinstrasse 6, D-50939 Köln, Germany
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2
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Oderinde MS, Jin S, Das J, Jorge C, Yip S, Ramirez A, Wu DR, Li Y, Kempson J, Meanwell NA, Mathur A, Dhar TGM. Photo-Initiated Nickel Catalysis (PiNiC): Unmasking Dimethylnickel with Light. ACS Catal 2022. [DOI: 10.1021/acscatal.2c04213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Martins S. Oderinde
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Soomin Jin
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Jayanta Das
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Christine Jorge
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Shiuhang Yip
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Antonio Ramirez
- Chemical & Process Development, Bristol Myers Squibb, 1 Squibb Drive, New Brunswick, New Jersey 08901, United States
| | - Dauh-Rurng Wu
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Ying Li
- Separation & Analysis Technology Team, Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - James Kempson
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Nicholas A. Meanwell
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - Arvind Mathur
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
| | - T. G. Murali Dhar
- Small Molecule Discovery Chemistry, Bristol Myers Squibb Research & Early Development, Route 206, Province Line Road, Princeton, New Jersey 08543, United States
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Dihydroquinazolinones as adaptative C(sp 3) handles in arylations and alkylations via dual catalytic C-C bond-functionalization. Nat Commun 2022; 13:2394. [PMID: 35504911 PMCID: PMC9064991 DOI: 10.1038/s41467-022-29984-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2021] [Accepted: 04/04/2022] [Indexed: 11/24/2022] Open
Abstract
C–C bond forming cross-couplings are convenient technologies for the construction of functional molecules. Consequently, there is continual interest in approaches that can render traditionally inert functionality as cross-coupling partners, included in this are ketones which are widely-available commodity chemicals and easy to install synthetic handles. Herein, we describe a dual catalytic strategy that utilizes dihydroquinazolinones derived from ketone congeners as adaptative one-electron handles for forging C(sp3) architectures via α C–C cleavage with aryl and alkyl bromides. Our approach is achieved by combining the flexibility and modularity of nickel catalysis with the propensity of photoredox events for generating open-shell reaction intermediates. This method is distinguished by its wide scope and broad application profile––including chemical diversification of advanced intermediates––, providing a catalytic technique complementary to existing C(sp3) cross-coupling reactions that operates within the C–C bond-functionalization arena. Although derived from feedstock chemicals and therefore in principle abundant, ketones are not widely used as cross-coupling partners in organic synthesis. Herein, the authors use ketone derivatives as one-electron handles for forging C(sp3) architectures via dual photo- and nickel catalysis.
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4
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Eskelinen T, Buss S, Petrovskii SK, Grachova EV, Krause M, Kletsch L, Klein A, Strassert CA, Koshevoy IO, Hirva P. Photophysics and Excited State Dynamics of Cyclometalated [M(Phbpy)(CN)] (M = Ni, Pd, Pt) Complexes: A Theoretical and Experimental Study. Inorg Chem 2021; 60:8777-8789. [PMID: 34097403 DOI: 10.1021/acs.inorgchem.1c00680] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cyclometalated complexes [M(Phbpy)(CN)] (HPhbpy = 6-phenyl-2,2'-bipyridine) of the group 10 metals (Ni, Pd, and Pt) bearing a carbanionic -C∧N∧N pincer ligand were synthesized and studied in a combined experimental and computational DFT approach. All three complexes were crystallographically characterized showing closely packed dimers with head-to-tail stacking and short metal-metal contacts in the solid state. The computational models for geometries, excited states, and electronic transitions addressed both monomeric (Ni-mono, Pd-mono, and Pt-mono) and dimeric (Ni-dim, Pd-dim, and Pt-dim) entities. Photophysical properties and excited state dynamics of all title complexes were investigated in solution and in the solid at 298 and 77 K. [Ni(Phbpy)(CN)] and [Pd(Phbpy)(CN)] are virtually nonemissive in solution at 298 K, whereas [Pt(Phbpy)(CN)] shows phosphorescence in CH2Cl2 (DCM) solution (λem = 562 nm) stemming from a mixed 3MLCT/ILCT (metal-to-ligand charge transfer/intraligand charge transfer) state. At 77 K in a glassy frozen DCM:MeOH matrix, [Pd(Phbpy)(CN)] shows a remarkable emission (λem = 571 nm) with a photoluminescence quantum yield reaching almost unity, whereas [Ni(Phbpy)(CN)] is again nonemissive. Calculations on the monomeric models M-mono show that low-lying metal-centered states (MC, i.e., d-d* configuration) with dissociative character quench the photoluminescence. In the solid state, the complexes [M(Phbpy)(CN)] show defined photoluminescence bands (λem = 561 nm for Pd and 701 nm for Pt). Calculations on the dimeric models M-dim shows that the axial M···M interactions alter the photophysical properties of Pd-dim and Pt-dim toward MMLCT (metal-metal-to-ligand charge transfer) excited states with Pd-dim showing temperature-dependent emission lifetimes, suggesting thermally activated delayed fluorescence, whereas Pt-dim displayed phosphorescence with excimeric character. The metal-metal interactions were analyzed in detail with the quantum theory of atoms in molecules approach.
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Affiliation(s)
- Toni Eskelinen
- Department of Chemistry, University of Eastern Finland, P.O. Box 111, FI-80100 Joensuu, Finland
| | - Stefan Buss
- CeNTech, CiMIC, SoN, Westfälische Wilhelms-Universität Münster, Heisenbergstr. 11, D-48149 Münster, Germany
| | - Stanislav K Petrovskii
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Elena V Grachova
- Department of Chemistry, St. Petersburg State University, Universitetskii pr. 26, 198504 St. Petersburg, Russia
| | - Maren Krause
- Department of Chemistry, University of Cologne, D-50939 Cologne, Germany
| | - Lukas Kletsch
- Department of Chemistry, University of Cologne, D-50939 Cologne, Germany
| | - Axel Klein
- Department of Chemistry, University of Cologne, D-50939 Cologne, Germany
| | - Cristian A Strassert
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstr. 28/30, D-48149 Münster, Germany.,CeNTech, CiMIC, SoN, Westfälische Wilhelms-Universität Münster, Heisenbergstr. 11, D-48149 Münster, Germany
| | - Igor O Koshevoy
- Department of Chemistry, University of Eastern Finland, P.O. Box 111, FI-80100 Joensuu, Finland
| | - Pipsa Hirva
- Department of Chemistry, University of Eastern Finland, P.O. Box 111, FI-80100 Joensuu, Finland
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Vogt N, Sandleben A, Kletsch L, Schäfer S, Chin MT, Vicic DA, Hörner G, Klein A. Role of the X Coligands in Cyclometalated [Ni(Phbpy)X] Complexes (HPhbpy = 6-Phenyl-2,2′-bipyridine). Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nicolas Vogt
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany
| | - Aaron Sandleben
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany
| | - Lukas Kletsch
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany
| | - Sascha Schäfer
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany
| | - Mason T. Chin
- Department of Chemistry, Lehigh University, 6 East Packer Avenue, Bethlehem, Pennsylvania 18015, United States
| | - David A. Vicic
- Department of Chemistry, Lehigh University, 6 East Packer Avenue, Bethlehem, Pennsylvania 18015, United States
| | - Gerald Hörner
- Institut für Chemie, Anorganische Chemie IV, Universität Bayreuth, Universitätsstraße 30, D-95440 Bayreuth, Germany
| | - Axel Klein
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln, Greinstraße 6, D-50939 Köln, Germany
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Beromi MM, Brudvig GW, Hazari N, Lant HMC, Mercado BQ. Synthesis and Reactivity of Paramagnetic Nickel Polypyridyl Complexes Relevant to C(sp 2 )-C(sp 3 )Coupling Reactions. Angew Chem Int Ed Engl 2019; 58:6094-6098. [PMID: 30859704 PMCID: PMC6479119 DOI: 10.1002/anie.201901866] [Citation(s) in RCA: 56] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2019] [Indexed: 12/15/2022]
Abstract
A number of new transition metal catalyzed methods for the formation of C(sp2 )-C(sp3 ) bonds have recently been described. These reactions often utilize bidentate polypyridyl-ligated Ni catalysts, and paramagnetic NiI halide or aryl species are proposed in the catalytic cycles. However, there is little knowledge about complexes of this type. Here, we report the synthesis of paramagnetic bidentate polypyridyl-ligated Ni halide and aryl complexes through elementary reactions proposed in catalytic cycles for C(sp2 )-C(sp3 ) bond formation. We investigate the ability of these complexes to undergo organometallic reactions that are relevant to C(sp2 )-C(sp3 ) coupling through stoichiometric studies and also explore their catalytic activity.
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Affiliation(s)
- Megan Mohadjer Beromi
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, CT, 06520, USA
| | - Gary W. Brudvig
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, CT, 06520, USA
| | - Nilay Hazari
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, CT, 06520, USA
| | - Hannah M. C. Lant
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, CT, 06520, USA
| | - Brandon Q. Mercado
- The Department of Chemistry, Yale University, P.O. Box 208107, New Haven, CT, 06520, USA
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7
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Mohadjer Beromi M, Brudvig GW, Hazari N, Lant HMC, Mercado BQ. Synthesis and Reactivity of Paramagnetic Nickel Polypyridyl Complexes Relevant to C(sp
2
)–C(sp
3
)Coupling Reactions. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201901866] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
| | - Gary W. Brudvig
- The Department of Chemistry Yale University P.O. Box 208107 New Haven CT 06520 USA
| | - Nilay Hazari
- The Department of Chemistry Yale University P.O. Box 208107 New Haven CT 06520 USA
| | - Hannah M. C. Lant
- The Department of Chemistry Yale University P.O. Box 208107 New Haven CT 06520 USA
| | - Brandon Q. Mercado
- The Department of Chemistry Yale University P.O. Box 208107 New Haven CT 06520 USA
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8
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Sandleben A, Vogt N, Hörner G, Klein A. Redox Series of Cyclometalated Nickel Complexes [Ni((R)Ph(R′)bpy)Br]+/0/–/2– (H–(R)Ph(R′)bpy = Substituted 6-Phenyl-2,2′-bipyridine). Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00559] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Aaron Sandleben
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie, Greinstraße 6, D-50939 Köln, Germany
| | - Nicolas Vogt
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie, Greinstraße 6, D-50939 Köln, Germany
| | - Gerald Hörner
- Institut für Chemie, Theoretische Chemie, Technische Universität Berlin, Straße des 17, Juni 135, D-10623 Berlin, Germany
| | - Axel Klein
- Universität zu Köln, Department für Chemie, Institut für Anorganische Chemie, Greinstraße 6, D-50939 Köln, Germany
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Abstract
AbstractThe new efficient and environmentally safe methods for preparation of various classes of organic and organoelement compounds, including organonickel sigma-complexes and organophosphorus compounds bearing P–C bonds have been created using the electrochemical methods. The synthetic application of the elaborated techniques towards the process of formation of new carbon-carbon, carbon-metal and carbon-phosphorus bonds are discussed. The mechanisms of the proposed processes and the nature of the formed in the overall electrochemical process intermediates are disclosed. The elaborated methods operated in the principals of “green chemistry” can be considered as an efficient alternative to some classical methods for preparation of active catalysts, biologically active molecules and new polynuclear complexes displaying practically useful properties.
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Biewer C, Hamacher C, Kaiser A, Vogt N, Sandleben A, Chin MT, Yu S, Vicic DA, Klein A. Unsymmetrical N-Aryl-1-(pyridin-2-yl)methanimine Ligands in Organonickel(II) Complexes: More Than a Blend of 2,2'-Bipyridine and N,N-Diaryl-α-diimines? Inorg Chem 2016; 55:12716-12727. [PMID: 27989202 DOI: 10.1021/acs.inorgchem.6b01874] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The new organonickel complexes [(R-PyMA)Ni(Mes)X] [R-PyMA = N-aryl-1-(pyridin-2-yl)methanimine; aryl = phenyl, 2,6-Me2-, 3,5-Me2-, 2,4,6-Me3-, 2,6-iPr2-, 3,5-(OMe)2-, 2-NO2-4-Me-, 4-NO2-, 2-CF3-, and 2-CF3-6-F-phenyl; Mes = 2,4,6-trimethylphenyl; X = F, Cl, Br, or I] were obtained as approximate 1/1 cis and trans isomeric mixtures or pure cis isomers depending on the PyMA ligand and X. The [(R-PyMA)Ni(Mes)X] complexes with X = Br or Cl were directly synthesized from the precursors trans-[(PPh3)2Ni(Mes)X], while [(PyMA)Ni(Mes)X] derivatives with X = F or I were obtained from [(PyMA)Ni(Mes)Br] through X exchange reactions. Although density functional theory (DFT) calculations show a preference for the sterically favored cis isomers, both isomers could be observed in many cases; in three cases, even single crystals for X-ray diffraction could be obtained for the trans isomers. Possible intermediates for the isomerization were investigated by DFT calculations. All complexes were studied by multiple spectroscopic means, electrochemistry, and spectroelectrochemistry (for the reduction processes). The long-wavelength metal-to-ligand charge-transfer (MLCT) absorptions vary markedly with the R substituent of the ligand and the cathodic electrochemical potentials to a far smaller degree. Both are almost invariable upon variation of X. All of this is in line with Ni-based and π*-based lowest unoccupied molecular orbitals (LUMOs). In line with the unsymmetric character of the NPy^Nmethanimine ligand, electrochemistry and MLCT transitions seem to not correspond to the same type of π* LUMO, making these PyMA ligands more interesting than the symmetric heteroaromatic polypyridine ligands such as 2,2'-bipyridine (bpy; NPy^NPy) and N,N-diaryl-substituted aliphatic α-diimines (Nmethanimine^Nmethanimine) such as the diaza-1,3-butadienes (DAB). First attempts to use these complexes in Negishi-type cross-coupling reactions were successful.
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Affiliation(s)
- Christian Biewer
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln , Greinstraße 6, D-50939 Köln, Germany
| | - Claudia Hamacher
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln , Greinstraße 6, D-50939 Köln, Germany
| | - Andre Kaiser
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln , Greinstraße 6, D-50939 Köln, Germany
| | - Nicolas Vogt
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln , Greinstraße 6, D-50939 Köln, Germany
| | - Aaron Sandleben
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln , Greinstraße 6, D-50939 Köln, Germany
| | - Mason T Chin
- Department of Chemistry, Lehigh University , 6 East Packer Avenue, Bethlehem, Pennsylvania 18015, United States
| | - Siqi Yu
- Department of Chemistry, Lehigh University , 6 East Packer Avenue, Bethlehem, Pennsylvania 18015, United States
| | - David A Vicic
- Department of Chemistry, Lehigh University , 6 East Packer Avenue, Bethlehem, Pennsylvania 18015, United States
| | - Axel Klein
- Department für Chemie, Institut für Anorganische Chemie, Universität zu Köln , Greinstraße 6, D-50939 Köln, Germany
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Synthesis, Structure and Reactivity of Cyclometalated Nickel(II) Complexes: A Review and Perspective. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES INDIA SECTION A-PHYSICAL SCIENCES 2016. [DOI: 10.1007/s40010-016-0289-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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12
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Sakhapov IF, Gafurov ZN, Babaev VM, Rizvanov IK, Dobrynin AB, Krivolapov DB, Khayarov KR, Sinyashin OG, Yakhvarov DG. First example of organonickel complex bearing three cyclic substituents in the σ-bonded aromatic ring: bromo[(2,2’ -bipyridine)-2,4,6-tricyclohexylphenylnickel]. MENDELEEV COMMUNICATIONS 2016. [DOI: 10.1016/j.mencom.2016.03.016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Klein A, Rausch B, Kaiser A, Vogt N, Krest A. The cyclometalated nickel complex [(Phbpy)NiBr] (Phbpy− = 2,2′-bipyridine-6-phen-2-yl) – Synthesis, spectroscopic and electrochemical studies. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.10.013] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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Yamamoto T. Homocoupling of aryl halides promoted by an NiCl2/bpy/Mg system in DMF. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3168] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Takakazu Yamamoto
- Chemical Resources Laboratory, Tokyo Institute of Technology; Midori-ku Yokohama 226-8503 Japan
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15
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Yakhvarov DG, Khusnuriyalova AF, Sinyashin OG. Electrochemical Synthesis and Properties of Organonickel σ-Complexes. Organometallics 2014. [DOI: 10.1021/om500100q] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Dmitry G. Yakhvarov
- A. E. Arbuzov Institute
of Organic and Physical
Chemistry, Kazan Scientific Centre of the Russian Academy of Sciences, Arbuzov str. 8, 420088 Kazan, Russian Federation
- Kazan Federal University, Kremlyovskaya
str. 18, 420008 Kazan, Russian Federation
| | | | - Oleg G. Sinyashin
- A. E. Arbuzov Institute
of Organic and Physical
Chemistry, Kazan Scientific Centre of the Russian Academy of Sciences, Arbuzov str. 8, 420088 Kazan, Russian Federation
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16
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Yakhvarov DG, Petr A, Kataev V, Büchner B, Gómez-Ruiz S, Hey-Hawkins E, Kvashennikova SV, Ganushevich YS, Morozov VI, Sinyashin OG. Synthesis, structure and electrochemical properties of the organonickel complex [NiBr(Mes)(phen)] (Mes = 2,4,6-trimethylphenyl, phen = 1,10-phenanthroline). J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2013.11.003] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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17
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Yamaguchi Y, Ichioka H, Klein A, Brennessel WW, Vicic DA. Linear Bis(perfluoroalkyl) Complexes of Nickel Bipyridine. Organometallics 2012. [DOI: 10.1021/om2012776] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Yoshitaka Yamaguchi
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822,
United States
- Department of Advanced Materials Chemistry, Graduate
School of Engineering, Yokohama National University, Tokiwadai 79-5, Hodogaya-ku, Yokohama, 240-8501, Japan
| | - Hiromi Ichioka
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822,
United States
| | - Axel Klein
- Universität zu Köln, Institut für Anorganische Chemie,
Greinstrasse 6, D-50939 Köln, Germany
| | - William W. Brennessel
- The X-ray Crystallographic Facility, Department of Chemistry, University of Rochester, Rochester, New York 14627,
United States
| | - David A. Vicic
- Department of Chemistry, University of Hawaii, 2545 McCarthy Mall, Honolulu, Hawaii 96822,
United States
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De P, Mondal TK, Mobin SM, Sarkar B, Lahiri GK. {Ru–NO}6 and {Ru–NO}7 configurations in [Ru(trpy)(tmp)(NO)]n+ (trpy=2,2′:6′,2′′-terpyridine, tmp=3,4,7,8-tetramethyl-1,10-phenanthroline): An experimental and theoretical investigation. Inorganica Chim Acta 2010. [DOI: 10.1016/j.ica.2010.03.074] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Yamamoto T. Synthesis of π-Conjugated Polymers by Organometallic Polycondensation. BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN 2010. [DOI: 10.1246/bcsj.20090338] [Citation(s) in RCA: 110] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Electrochemistry and Spectroscopy of Organometallic Terpyridine Nickel Complexes. Inorg Chem 2009; 48:9947-51. [DOI: 10.1021/ic900753r] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Hamacher C, Hurkes N, Kaiser A, Klein A. Back-bonding in Organonickel Complexes with Terpyridine Ligands – A Structural Approach. Z Anorg Allg Chem 2007. [DOI: 10.1002/zaac.200700250] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Klein A, Budnikova YH, Sinyashin OG. Electron transfer in organonickel complexes of α-diimines: Versatile redox catalysts for C–C or C–P coupling reactions – A review. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.01.021] [Citation(s) in RCA: 93] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Klein A, Kaiser A, Sarkar B, Wanner M, Fiedler J. The Electrochemical Behaviour of Organonickel Complexes: Mono-, Di- and Trivalent Nickel. Eur J Inorg Chem 2007. [DOI: 10.1002/ejic.200600865] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Ceder RM, Muller G, Ordinas M, Ordinas JI. The insertion reaction of acetonitrile on aryl nickel complexes stabilized by bidentate N,N′-chelating ligands. Dalton Trans 2007:83-90. [PMID: 17160177 DOI: 10.1039/b608352h] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Organometallic complexes to be used as single component precursors in the catalytic dimerization/polymerization of olefins usually must contain a labile ligand that can easily be displaced by the olefin. This is the first step in the activation of the precursor. One commonly used labile ligand is a nitrile. Here we report an example of incompatibility between the nickel or palladium aryl bond and acetonitrile. Neutral [MBr(Mes)NN] complexes in which Mes=2,4,6-Me3C6H2, NN=diazabutadiene (DAD), pyridinylimine (PIM), 2,2'-bipyridine (bipy) or 1,10-phenanthroline (phen) gave the expected [M(Mes)(3,5-lut)(NN)][BF4] compounds and the unexpected [Ni(Mes){NH=C(Me)(2,4,6-Me3C6H2)}(NN)][BF4] complexes in the presence of TlBF4 and 3,5-lutidine or acetonitrile. The sequence of reactions that leads to the imine ligand must include an initial insertion of the nitrile on the sigma(Ni-Mes) bond. These ionic complexes remain stable under 20 bar of ethylene.
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Affiliation(s)
- Rosa M Ceder
- Departament de Química Inorgànica, Universitat de Barcelona, Martí i Franquès, 1-11, 08028, Barcelona, Spain
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Schaub T, Radius U. A Diazabutadiene stabilized Nickel(0) Cyclooctadiene Complex: Synthesis, Characterization and the Reaction with Diphenylacetylene. Z Anorg Allg Chem 2006. [DOI: 10.1002/zaac.200500424] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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