1
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Lin L, Spasyuk DM, Lalancette RA, Prokopchuk DE. Coordination-Induced Weakening of a C(sp 3)-H Bond: Homolytic and Heterolytic Bond Strength of a CH-Ni Agostic Interaction. J Am Chem Soc 2022; 144:12632-12637. [PMID: 35786956 DOI: 10.1021/jacs.2c05667] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The scission of a C(sp3)-H bond to form a new metal-alkyl bond is a fundamental step in coordination chemistry and catalysis. However, the extent of C-H bond weakening when this moiety interacts with a transition metal is poorly understood and quantifying this phenomenon could provide insights into designing more efficient C-H functionalization catalysts. We present a nickel complex with a robust adamantyl reporter ligand that enables the measurement of C-H acidity (pKa) and bond dissociation free energy (BDFE) for a C(sp3)-H agostic interaction, showing a decrease in pKa by dozens of orders of magnitude and BDFE decrease of about 30 kcal/mol upon coordination. X-ray crystallographic data is provided for all molecules, including a distorted square planar NiIII metalloradical and "doubly agostic" NiII(κ2-CH2) complex.
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Affiliation(s)
- Lirong Lin
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Denis M Spasyuk
- Canadian Light Source, 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N2V3, Canada
| | - Roger A Lalancette
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, New Jersey 07102, United States
| | - Demyan E Prokopchuk
- Department of Chemistry, Rutgers University-Newark, 73 Warren Street, Newark, New Jersey 07102, United States
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2
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Bresciani G, Zacchini S, Pampaloni G, Bortoluzzi M, Marchetti F. η 6-Coordinated ruthenabenzenes from three-component assembly on a diruthenium μ-allenyl scaffold. Dalton Trans 2022; 51:8390-8400. [PMID: 35587270 DOI: 10.1039/d2dt01071b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The room temperature reactions with internal alkynes, RCCR, of the μ-allenyl acetonitrile complex [Ru2Cp2(CO)2(NCMe){μ-η1:η2-C1HC2C3Me2}]BF4 (1-NCMe), freshly prepared from the tricarbonyl precursor [Ru2Cp2(CO)3{μ-η1:η2-C1HC2C3Me2}]BF4, 1, proceeded with alkyne insertion into ruthenium-allenyl bond and allenyl-CO coupling, affording compounds [Ru2Cp2(CO)2{μ-η2:η5-C(R)C(R)C1HC2(C3MeCH2)C(OH)}]BF4 (R = Ph, 2; R = CO2Me, 3; R = CO2Et, 4) in 83-94% yields. Deprotonation of 2-4 by triethylamine gave [Ru2Cp2(CO)2{μ-η2:η5-C(R)C(R)CHC(CMeCH2)C(O)}] (R = Ph, 5; R = CO2Me, 6; R = CO2Et, 7) in 75-88% yields, and 2-4 could be recovered upon HBF4·Et2O addition to 5-7. All the products, 2-7, were fully characterized by elemental analysis, IR and multinuclear NMR spectroscopy. The structure of 2 was ascertained by single crystal X-ray diffraction and investigated by DFT calculations, revealing a six-membered ruthenacycle with Shannon aromaticity index in line with related compounds. The formation of ruthenium-coordinated ruthenabenzenes from a preexistent diruthenium scaffold is a versatile but underdeveloped approach exploiting cooperative effects typical of a dimetallic core.
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Affiliation(s)
- Giulio Bresciani
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy. .,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Stefano Zacchini
- University of Bologna, Department of Industrial Chemistry "Toso Montanari", Viale Risorgimento 4, I-40136 Bologna, Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Guido Pampaloni
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy. .,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Marco Bortoluzzi
- University of Venezia "Ca' Foscari", Department of Molecular Science and Nanosystems, Via Torino 155, I-30170 Mestre (VE), Italy.,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
| | - Fabio Marchetti
- University of Pisa, Department of Chemistry and Industrial Chemistry, Via G. Moruzzi 13, I-56124 Pisa, Italy. .,CIRCC, Via Celso Ulpiani 27, I-70126 Bari, Italy
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3
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Karimzadeh‐Younjali M, Wendt OF. α‐ and β‐Eliminations in Transition Metal Complexes: Strategies to Cleave Unstrained C−C and C−F Bonds. Helv Chim Acta 2021. [DOI: 10.1002/hlca.202100114] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
| | - Ola F. Wendt
- Centre for Analysis and Synthesis Department of Chemistry Lund University PO Box 124 SE-22100 Lund Sweden
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4
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Wiedmaier NR, Schubert H, Mayer HA, Wesemann L. Carbocyclic pincer carbene complexes of ruthenium: syntheses and reversible hydrogenation. Dalton Trans 2021; 50:11814-11820. [PMID: 34369545 DOI: 10.1039/d1dt02266k] [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 ruthenium carbene pincer complex 2 was synthesized treating the benzo annulated cycloheptatriene bisphosphine 1 with RuCl3. Addition of three equivalents of hydrogen to the carbocyclic carbene complex 2 was achieved in reaction of 2 with hydrogen at elevated temperatures. Hydrogenated complex 4, exhibiting a rigid chair conformation in solution, was dehydrogenated by heating a toluene solution of complex 4 to reflux for 5-7 d. In reaction with ethylene, complex 4 transfers one equivalent of hydrogen, forming ethane and alkyl complex 5.
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Affiliation(s)
- Nicholas R Wiedmaier
- Institut für Anorganische Chemie, Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany.
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5
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Wang HX, Wan Q, Low KH, Zhou CY, Huang JS, Zhang JL, Che CM. Stable group 8 metal porphyrin mono- and bis(dialkylcarbene) complexes: synthesis, characterization, and catalytic activity. Chem Sci 2020; 11:2243-2259. [PMID: 32180931 PMCID: PMC7047983 DOI: 10.1039/c9sc05432d] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Accepted: 12/30/2019] [Indexed: 12/17/2022] Open
Abstract
Alkyl-substituted carbene (CHR or CR2, R = alkyl) complexes have been extensively studied for alkylcarbene (CHR) ligands coordinated with high-valent early transition metal ions (a.k.a. Schrock carbenes or alkylidenes), yet dialkylcarbene (CR2) complexes remain less developed with bis(dialkylcarbene) species being little (if at all) explored. Herein, several group 8 metal porphyrin dialkylcarbene complexes, including Fe- and Ru-mono(dialkylcarbene) complexes [M(Por)(Ad)] (1a,b, M = Fe, Por = porphyrinato dianion, Ad = 2-adamantylidene; 2a,b, M = Ru) and Os-bis(dialkylcarbene) complexes [Os(Por)(Ad)2] (3a-c), are synthesized and crystallographically characterized. Detailed investigations into their electronic structures reveal that these complexes are formally low-valent M(ii)-carbene in nature. These complexes display remarkable thermal stability and chemical inertness, which are rationalized by a synergistic effect of strong metal-carbene covalency, hyperconjugation, and a rigid diamondoid carbene skeleton. Various spectroscopic techniques and DFT calculations suggest that the dialkylcarbene Ad ligand is unique compared to other common carbene ligands as it acts as both a potent σ-donor and π-acceptor; its unique electronic and structural features, together with the steric effect of the porphyrin macrocycle, make its Fe porphyrin complex 1a an active and robust catalyst for intermolecular diarylcarbene transfer reactions including cyclopropanation (up to 90% yield) and X-H (X = S, N, O, C) insertion (up to 99% yield) reactions.
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Affiliation(s)
- Hai-Xu Wang
- State Key Laboratory of Synthetic Chemistry , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China .
| | - Qingyun Wan
- State Key Laboratory of Synthetic Chemistry , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China .
| | - Kam-Hung Low
- State Key Laboratory of Synthetic Chemistry , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China .
| | - Cong-Ying Zhou
- State Key Laboratory of Synthetic Chemistry , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China .
- College of Chemistry and Materials Science , Jinan University , Guangzhou , China
| | - Jie-Sheng Huang
- State Key Laboratory of Synthetic Chemistry , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China .
| | - Jun-Long Zhang
- Beijing National Laboratory for Molecular Sciences , College of Chemistry and Molecular Engineering , Peking University , Beijing , China
| | - Chi-Ming Che
- State Key Laboratory of Synthetic Chemistry , Department of Chemistry , The University of Hong Kong , Pokfulam Road , Hong Kong SAR , China .
- HKU Shenzhen Institute of Research & Innovation , Shenzhen , China
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6
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Wiedmaier NR, Speth H, Leistikow G, Eichele K, Schubert H, Mayer HA, Wesemann L. Conformation controlled stepwise hydride shuffling from the metal to the ligand backbone. Dalton Trans 2020; 49:7218-7227. [DOI: 10.1039/d0dt01431a] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The protonation of the benzo annulated cycloheptatriene PCP pincer ruthenium hydrido dicarbonyl complex using the superacid [H(Et2O)2][BArF24] launches a cascade of hydride shifts which lead to the hydrogenation of the ligand backbone.
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Affiliation(s)
| | - Hansjörg Speth
- Institut für Anorganische Chemie
- Universität Tübingen
- 72076 Tübingen
- Germany
| | - Georg Leistikow
- Institut für Anorganische Chemie
- Universität Tübingen
- 72076 Tübingen
- Germany
| | - Klaus Eichele
- Institut für Anorganische Chemie
- Universität Tübingen
- 72076 Tübingen
- Germany
| | - Hartmut Schubert
- Institut für Anorganische Chemie
- Universität Tübingen
- 72076 Tübingen
- Germany
| | - Hermann A. Mayer
- Institut für Anorganische Chemie
- Universität Tübingen
- 72076 Tübingen
- Germany
| | - Lars Wesemann
- Institut für Anorganische Chemie
- Universität Tübingen
- 72076 Tübingen
- Germany
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7
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Singh A, Gelman D. Cooperative Reactivity in Carbometalated Pincer-Type Complexes Possessing an Appended Functionality. ACS Catal 2019. [DOI: 10.1021/acscatal.9b04882] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Ajeet Singh
- Institute of Chemistry, The Hebrew University, Edmund Safra Campus, 91904 Jerusalem, Israel
| | - Dmitri Gelman
- Institute of Chemistry, The Hebrew University, Edmund Safra Campus, 91904 Jerusalem, Israel
- Peoples’ Friendship University of Russia (RUDN University), Miklukho-Maklay St., 6, 117198 Moscow, Russia
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8
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Zhu J, Chen PH, Lu G, Liu P, Dong G. Ruthenium-Catalyzed Reductive Cleavage of Unstrained Aryl-Aryl Bonds: Reaction Development and Mechanistic Study. J Am Chem Soc 2019; 141:18630-18640. [PMID: 31674779 PMCID: PMC7081785 DOI: 10.1021/jacs.9b11605] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cleavage of carbon-carbon bonds has been found in some important industrial processes, for example, petroleum cracking, and has inspired development of numerous synthetic methods. However, nonpolar unstrained C(aryl)-C(aryl) bonds remain one of the toughest bonds to be activated. As a detailed study of a fundamental reaction mode, here a full story is described about our development of a Ru-catalyzed reductive cleavage of unstrained C(aryl)-C(aryl) bonds. A wide range of biaryl compounds that contain directing groups (DGs) at 2,2' positions can serve as effective substrates. Various heterocycles, such as pyridine, quinoline, pyrimidine, and pyrazole, can be employed as DGs. Besides hydrogen gas, other reagents, such as Hantzsch ester, silanes, and alcohols, can be employed as terminal reductants. The reaction is pH neutral and free of oxidants; thus a number of functional groups are tolerated. Notably, a one-pot C-C activation/C-C coupling has been realized. Computational and experimental mechanistic studies indicate that the reaction involves a ruthenium(II) monohydride-mediated C(aryl)-C(aryl) activation and the resting state of the catalyst is a η4-coordinated ruthenium(II) dichloride complex, which could inspire development of other transformations based on this reaction mode.
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Affiliation(s)
- Jun Zhu
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
| | - Peng-hao Chen
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
| | - Gang Lu
- School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Peng Liu
- Department of Chemistry, University of Pittsburgh, Pittsburgh, Pennsylvania 15260, United States
| | - Guangbin Dong
- Department of Chemistry, University of Chicago, Chicago, Illinois 60637, United States
- Department of Chemistry, University of Texas at Austin, Austin, Texas 78712, United States
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9
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Planer S, Jana A, Grela K. Ethyl Lactate: A Green Solvent for Olefin Metathesis. CHEMSUSCHEM 2019; 12:4655-4661. [PMID: 31412165 DOI: 10.1002/cssc.201901735] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Revised: 08/13/2019] [Indexed: 05/08/2023]
Abstract
Compatibility of selected, commercially available ruthenium olefin metathesis catalysts with ethyl lactate as solvent was evaluated using a range of substrates and conditions. In addition, the preparation of a metathesis catalyst in simplified manner by using the advantages of ethyl lactate was accomplished. The application of ethyl lactate facilitates product isolation (also allowing for lower ruthenium contamination in crude metathesis products) and improves the overall green angle of olefin metathesis.
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Affiliation(s)
- Sebastian Planer
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki I Wigury 101, 02-089, Warsaw, Poland
| | - Anupam Jana
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki I Wigury 101, 02-089, Warsaw, Poland
| | - Karol Grela
- Faculty of Chemistry, Biological and Chemical Research Centre, University of Warsaw, Zwirki I Wigury 101, 02-089, Warsaw, Poland
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10
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Das K, Kumar A. Alkane dehydrogenation reactions catalyzed by pincer-metal complexes. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2019. [DOI: 10.1016/bs.adomc.2019.02.004] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/03/2022]
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11
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Feichtner KS, Gessner VH. Cooperative bond activation reactions with carbene complexes. Chem Commun (Camb) 2018; 54:6540-6553. [DOI: 10.1039/c8cc02198h] [Citation(s) in RCA: 59] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This review highlights the recent advances in the application of carbene complexes in bond activation reactions via metal–ligand cooperation.
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Affiliation(s)
- Kai-Stephan Feichtner
- Inorganic Chemistry II
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
| | - Viktoria H. Gessner
- Inorganic Chemistry II
- Faculty of Chemistry and Biochemistry
- Ruhr University Bochum
- 44801 Bochum
- Germany
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12
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Kumar A, Bhatti TM, Goldman AS. Dehydrogenation of Alkanes and Aliphatic Groups by Pincer-Ligated Metal Complexes. Chem Rev 2017; 117:12357-12384. [DOI: 10.1021/acs.chemrev.7b00247] [Citation(s) in RCA: 205] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Akshai Kumar
- Department
of Chemistry, Indian Institute of Technology Guwahati, Guwahati-781039, Assam, India
| | - Tariq M. Bhatti
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
| | - Alan S. Goldman
- Department
of Chemistry and Chemical Biology, Rutgers, The State University of New Jersey, New Brunswick, New Jersey 08903, United States
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13
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Polukeev AV, Wendt OF. Cyclohexane-Based Phosphinite Iridium Pincer Complexes: Synthesis, Characterization, Carbene Formation, and Catalytic Activity in Dehydrogenation Reactions. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00846] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexey V. Polukeev
- Centre for Analysis and Synthesis,
Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden
| | - Ola F. Wendt
- Centre for Analysis and Synthesis,
Department of Chemistry, Lund University, P.O. Box 124, 22100 Lund, Sweden
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14
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Buil ML, Cardo JJF, Esteruelas MA, Oñate E. Square-Planar Alkylidyne–Osmium and Five-Coordinate Alkylidene–Osmium Complexes: Controlling the Transformation from Hydride-Alkylidyne to Alkylidene. J Am Chem Soc 2016; 138:9720-8. [DOI: 10.1021/jacs.6b05825] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- María L. Buil
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Juan J. F. Cardo
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Centro de Innovación en Química
Avanzada (ORFEO-CINQA), Universidad de Zaragoza-CSIC, 50009 Zaragoza, Spain
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15
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O’Reilly ME, Dutta S, Veige AS. β-Alkyl Elimination: Fundamental Principles and Some Applications. Chem Rev 2016; 116:8105-45. [DOI: 10.1021/acs.chemrev.6b00054] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Matthew E. O’Reilly
- Department of Chemistry,
Center for Catalysis, University of Florida, Gainesville, Florida 32611, United States
| | - Saikat Dutta
- Department of Chemistry,
Center for Catalysis, University of Florida, Gainesville, Florida 32611, United States
| | - Adam S. Veige
- Department of Chemistry,
Center for Catalysis, University of Florida, Gainesville, Florida 32611, United States
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16
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Broomfield LM, Wu Y, Martin E, Shafir A. Phosphino-amine (PN) Ligands for Rapid Catalyst Discovery in Ruthenium-Catalyzed Hydrogen-Borrowing Alkylation of Anilines: A Proof of Principle. Adv Synth Catal 2015. [DOI: 10.1002/adsc.201500562] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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17
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Kim J, Park SW, Baik MH, Chang S. Complete Switch of Selectivity in the C–H Alkenylation and Hydroarylation Catalyzed by Iridium: The Role of Directing Groups. J Am Chem Soc 2015; 137:13448-51. [DOI: 10.1021/jacs.5b09824] [Citation(s) in RCA: 115] [Impact Index Per Article: 12.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Jiyu Kim
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Sung-Woo Park
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Mu-Hyun Baik
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 305-701, Korea
| | - Sukbok Chang
- Department
of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon 305-701, Korea
- Center
for Catalytic Hydrocarbon Functionalizations, Institute for Basic Science (IBS), Daejeon 305-701, Korea
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18
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Affiliation(s)
- Alexey V. Polukeev
- Centre
for Analysis and Synthesis,
Department of Chemistry, Lund University, P.O. Box 124, S-22100 Lund, Sweden
| | - Ola F. Wendt
- Centre
for Analysis and Synthesis,
Department of Chemistry, Lund University, P.O. Box 124, S-22100 Lund, Sweden
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19
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Arras J, Speth H, Mayer HA, Wesemann L. Different Coordination Modes of the Ph2PCsp3PPh2 Pincer Ligand in Rhodium Complexes as a Consequence of Csp3–H Metal Interaction. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00437] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Janet Arras
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Hansjörg Speth
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Hermann A. Mayer
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
| | - Lars Wesemann
- Institut für Anorganische
Chemie, Universität Tübingen, Auf der Morgenstelle 18, D-72076 Tübingen, Germany
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20
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Holland PL. Distinctive Reaction Pathways at Base Metals in High-Spin Organometallic Catalysts. Acc Chem Res 2015; 48:1696-702. [PMID: 25989357 DOI: 10.1021/acs.accounts.5b00036] [Citation(s) in RCA: 135] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Inexpensive "base" metals are more affordable and sustainable than precious metals and also offer opportunities to discover new mechanisms for selective catalytic reactions. Base metal complexes can have high-spin electronic configurations that are rare in precious metal complexes. This Account describes some concepts relevant to high-spin organometallic complexes, focusing on our recent work with β-diketiminate complexes of iron and cobalt. Even though high-spin organometallic complexes have some unfamiliar spectroscopic properties, they can be studied using NMR spectroscopy as well as techniques that focus on the magnetism brought about by the unpaired electrons. Understanding the mechanisms of reactions using these complexes can be complicated, because complexes with a high-spin electronic configuration may need to change spin states to avoid high barriers for reaction. These spin-state changes can be rapid, and the ability of an excited spin state to "cut through" the barrier for a reaction can lead to spin acceleration. These concepts, originally developed by Poli, Shaik, Schwarz, and Harvey, are applied here to the fundamental organometallic reaction of β-hydride elimination (BHE). Experimentally validated density-functional calculations show spin acceleration in BHE using three-coordinate iron(II) and cobalt(II) complexes. A square-planar transition state is particularly beneficial for accelerating BHE when a high-spin iron(II) complex goes from an S = 2 ground state to an S = 1 transition state or when a high-spin cobalt(II) complex goes from an S = 3/2 ground state to an S = 1/2 transition state. The relative energies of the spin states can be controlled with the choice of the supporting ligand. Using an appropriate ligand, isomerization of 1-alkenes to their Z-2 isomers can be catalyzed in high yields using the cobalt(II) alkyl complexes as catalysts. Though an earlier paper attributed the regioselectivity and stereoselectivity to the preferred geometry of the BHE step, the results of isotope labeling experiments suggest that the selectivity may actually come from the alkene exchange step (again with spin acceleration). In general, the use of multiple intersecting spin states is envisioned as a profitable strategy for bringing about low reaction barriers and high selectivity in catalytic reactions. This effort requires high-accuracy computational models as well as ligand design that gives nearby spin states with appropriate geometries.
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Affiliation(s)
- Patrick L. Holland
- Department of Chemistry, Yale University, P.O. Box 208107, New Haven, Connecticut 06520, United States
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21
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Kumar A, Goldman AS. Recent Advances in Alkane Dehydrogenation Catalyzed by Pincer Complexes. TOP ORGANOMETAL CHEM 2015. [DOI: 10.1007/3418_2015_113] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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22
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Kommagalla Y, Mullapudi VB, Francis F, Ramana CV. Ruthenium(ii)-catalyzed switchable C3-alkylation versus alkenylation with acrylates of 2-pyridylbenzofurans via C–H bond activation. Catal Sci Technol 2015. [DOI: 10.1039/c4cy01268b] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We documented an interesting observation of ruthenium(ii)-catalyzed benzofuran C–H activation and subsequent functionalization with acrylates that reveals that a simple base can switch the process from alkylation to alkenylation.
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Affiliation(s)
- Yadagiri Kommagalla
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | | | - Fredi Francis
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008
- India
| | - Chepuri V. Ramana
- Division of Organic Chemistry
- CSIR-National Chemical Laboratory
- Pune-411008
- India
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23
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Gunanathan C, Milstein D. Bond activation and catalysis by ruthenium pincer complexes. Chem Rev 2014; 114:12024-87. [PMID: 25398045 DOI: 10.1021/cr5002782] [Citation(s) in RCA: 710] [Impact Index Per Article: 71.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Chidambaram Gunanathan
- School of Chemical Sciences, National Institute of Science Education and Research (NISER) , Bhubaneswar 751005, India
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24
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Askevold B, Khusniyarov MM, Kroener W, Gieb K, Müller P, Herdtweck E, Heinemann FW, Diefenbach M, Holthausen MC, Vieru V, Chibotaru LF, Schneider S. Square-planar ruthenium(II) complexes: control of spin state by pincer ligand functionalization. Chemistry 2014; 21:579-89. [PMID: 25359612 DOI: 10.1002/chem.201404282] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2014] [Indexed: 11/07/2022]
Abstract
Functionalization of the PNP pincer ligand backbone allows for a comparison of the dialkyl amido, vinyl alkyl amido, and divinyl amido ruthenium(II) pincer complex series [RuCl{N(CH2 CH2 PtBu2 )2 }], [RuCl{N(CHCHPtBu2 )(CH2 CH2 PtBu2 )}], and [RuCl{N(CHCHPtBu2 )2 }], in which the ruthenium(II) ions are in the extremely rare square-planar coordination geometry. Whereas the dialkylamido complex adopts an electronic singlet (S=0) ground state and energetically low-lying triplet (S=1) state, the vinyl alkyl amido and the divinyl amido complexes exhibit unusual triplet (S=1) ground states as confirmed by experimental and computational examination. However, essentially non-magnetic ground states arise for the two intermediate-spin complexes owing to unusually large zero-field splitting (D>+200 cm(-1) ). The change in ground state electronic configuration is attributed to tailored pincer ligand-to-metal π-donation within the PNP ligand series.
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Affiliation(s)
- Bjorn Askevold
- Department Chemie und Pharmazie, Universität Erlangen-Nürnberg, Egerlandstr. 1, 91058 Erlangen (Germany)
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25
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Younus HA, Ahmad N, Su W, Verpoort F. Ruthenium pincer complexes: Ligand design and complex synthesis. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.06.016] [Citation(s) in RCA: 85] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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26
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Fuku-en SI, Yamamoto J, Kojima S, Yamamoto Y. Synthesis and Application of New Dipyrido-annulated N-Heterocyclic Carbene with Phosphorus Substituents. CHEM LETT 2014. [DOI: 10.1246/cl.131074] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Shin-ichi Fuku-en
- Department of Chemistry, Graduate School of Science, Hiroshima University
| | - Junki Yamamoto
- Department of Chemistry, Graduate School of Science, Hiroshima University
| | - Satoshi Kojima
- Department of Chemistry, Graduate School of Science, Hiroshima University
| | - Yohsuke Yamamoto
- Department of Chemistry, Graduate School of Science, Hiroshima University
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27
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Alós J, Bolaño T, Esteruelas MA, Oliván M, Oñate E, Valencia M. POP–Pincer Ruthenium Complexes: d6 Counterparts of Osmium d4 Species. Inorg Chem 2014; 53:1195-209. [DOI: 10.1021/ic402795g] [Citation(s) in RCA: 54] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Joaquín Alós
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Tamara Bolaño
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Montserrat Oliván
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Marta Valencia
- Departamento de Química
Inorgánica, Instituto de Síntesis Química y Catálisis
Homogénea (ISQCH), Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
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28
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Zhu G, Li X, Xu G, Wang L, Sun H. A new PC(sp3)P ligand and its coordination chemistry with low-valent iron, cobalt and nickel complexes. Dalton Trans 2014; 43:8595-8. [DOI: 10.1039/c4dt00639a] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new PC(sp3)P ligand and its pincer complexes with Fe and Co are reported.
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Affiliation(s)
- Gengyu Zhu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan, People's Republic of China
| | - Xiaoyan Li
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan, People's Republic of China
| | - Guoqiang Xu
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan, People's Republic of China
| | - Lin Wang
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan, People's Republic of China
| | - Hongjian Sun
- School of Chemistry and Chemical Engineering
- Key Laboratory of Special Functional Aggregated Materials
- Ministry of Education
- Shandong University
- 250199 Jinan, People's Republic of China
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29
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Ung G, Bertrand G. β- and α-Hydride Abstraction in Gold(I) Alkyl Complexes. Angew Chem Int Ed Engl 2013; 52:11388-91. [DOI: 10.1002/anie.201306550] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2013] [Revised: 08/20/2013] [Indexed: 02/01/2023]
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31
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Bellows SM, Cundari TR, Holland PL. Spin Crossover during β-Hydride Elimination in High-Spin Iron(II)– and Cobalt(II)–Alkyl Complexes. Organometallics 2013. [DOI: 10.1021/om400325x] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Sarina M. Bellows
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
| | - Thomas R. Cundari
- Department of Chemistry and CaSCAM, University of North Texas, Denton, Texas 76203, United States
| | - Patrick L. Holland
- Department of Chemistry, University of Rochester, Rochester, New York 14627, United States
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32
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Affiliation(s)
- Dmitry G. Gusev
- Department of Chemistry, Wilfrid Laurier University, 75 University
Avenue West, Waterloo Ontario N2L 3C5, Canada
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33
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Sandhya KS, Suresh CH. Autotandem Aromatization–Dearomatization Pathways for PNP-RuII-Catalyzed Formation of Imine and Hydrogen from Alcohol and Amine. Organometallics 2013. [DOI: 10.1021/om4001428] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K. S. Sandhya
- Chemical Sciences
and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum
695 019, India
| | - Cherumuttathu H. Suresh
- Chemical Sciences
and Technology Division, CSIR-National Institute for Interdisciplinary Science and Technology, Trivandrum
695 019, India
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34
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35
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Santos LL, Mereiter K, Paneque M. Reaction of 2-Methylanisole with TpMe2Ir(C6H5)2(N2): A Comprehensive Set of Activations. Organometallics 2013. [DOI: 10.1021/om301033c] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Laura L. Santos
- Instituto de Investigaciones
Quı́micas (IIQ) and Departamento de Quı́mica
Inorgánica, Consejo Superior de Investigaciones Cientı́ficas (CSIC) and Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain
| | - Kurt Mereiter
- Instituto de Investigaciones
Quı́micas (IIQ) and Departamento de Quı́mica
Inorgánica, Consejo Superior de Investigaciones Cientı́ficas (CSIC) and Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain
| | - Margarita Paneque
- Instituto de Investigaciones
Quı́micas (IIQ) and Departamento de Quı́mica
Inorgánica, Consejo Superior de Investigaciones Cientı́ficas (CSIC) and Universidad de Sevilla, Avda. Américo Vespucio 49, 41092 Sevilla, Spain
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36
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Sgro MJ, Stephan DW. Synthesis and reactivity of ruthenium tridentate bis-phosphinite ligand complexes. Dalton Trans 2013; 42:10460-72. [DOI: 10.1039/c3dt51065d] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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37
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Sgro MJ, Stephan DW. Frustrated Lewis Pair Inspired Carbon Dioxide Reduction by a Ruthenium Tris(aminophosphine) Complex. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205741] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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38
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Sgro MJ, Stephan DW. Frustrated Lewis Pair Inspired Carbon Dioxide Reduction by a Ruthenium Tris(aminophosphine) Complex. Angew Chem Int Ed Engl 2012; 51:11343-5. [DOI: 10.1002/anie.201205741] [Citation(s) in RCA: 128] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2012] [Revised: 08/23/2012] [Indexed: 11/07/2022]
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39
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Herbert MB, Lan Y, Keitz BK, Liu P, Endo K, Day MW, Houk KN, Grubbs RH. Decomposition pathways of Z-selective ruthenium metathesis catalysts. J Am Chem Soc 2012; 134:7861-6. [PMID: 22500642 DOI: 10.1021/ja301108m] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
The decomposition of a Z-selective ruthenium metathesis catalyst and structurally similar analogues has been investigated utilizing X-ray crystallography and density functional theory. Isolated X-ray crystal structures suggest that recently reported C-H activated catalysts undergo decomposition via insertion of the alkylidene moiety into the chelating ruthenium-carbon bond followed by hydride elimination, which is supported by theoretical calculations. The resulting ruthenium hydride intermediates have been implicated in previously observed olefin migration, and thus lead to unwanted byproducts in cross metathesis reactions. Preventing these decomposition modes will be essential in the design of more active and selective Z-selective catalysts.
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Affiliation(s)
- Myles B Herbert
- Arnold and Mabel Beckman Laboratory of Chemical Synthesis, Division of Chemistry and Chemical Engineering, California Institute of Technology, Pasadena, California 91125, USA
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40
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Lejkowski M, Banerjee P, Schüller S, Münch A, Runsink J, Vermeeren C, Gais HJ. Asymmetric Synthesis of Densely Functionalized Medium-Ring Carbocycles and Lactones through Modular Assembly and Ring-Closing Metathesis of Sulfoximine-Substituted Trienes and Dienynes. Chemistry 2012; 18:3529-48. [DOI: 10.1002/chem.201103060] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2011] [Indexed: 11/10/2022]
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41
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Sgro MJ, Stephan DW. Ni(ii), Pd(ii) and Pt(ii) complexes of PNP and PSP tridentate amino–phosphine ligands. Dalton Trans 2012; 41:6791-802. [PMID: 22535417 DOI: 10.1039/c2dt30373f] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- Michael J Sgro
- Department of Chemistry, University of Toronto, 80 St George St, Toronto, Ontario, Canada M5S3H6
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42
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Schneider S, Meiners J, Askevold B. Cooperative Aliphatic PNP Amido Pincer Ligands – Versatile Building Blocks for Coordination Chemistry and Catalysis. Eur J Inorg Chem 2011. [DOI: 10.1002/ejic.201100880] [Citation(s) in RCA: 235] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Sven Schneider
- Department Chemie und Pharmazie, Friedrich‐Alexander‐ Universität Erlangen‐Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Jenni Meiners
- Department Chemie und Pharmazie, Friedrich‐Alexander‐ Universität Erlangen‐Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
| | - Bjorn Askevold
- Department Chemie und Pharmazie, Friedrich‐Alexander‐ Universität Erlangen‐Nürnberg, Egerlandstr. 1, 91058 Erlangen, Germany
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43
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Allen OR, Field LD, Magill AM, Vuong KQ, Bhadbhade MM, Dalgarno SJ. Ruthenium Complexes of CP3: A New Carbon-Centered Polydentate Podand Ligand. Organometallics 2011. [DOI: 10.1021/om200718j] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
| | | | | | | | | | - Scott J. Dalgarno
- School of EPS-Chemistry, Heriot-Watt University, Riccarton, Edinburgh
EH14 4AS, United Kingdom
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44
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Gwynne EA, Stephan DW. Nickel(II) and Palladium(II) Bis-Aminophosphine Pincer Complexes. Organometallics 2011. [DOI: 10.1021/om200439q] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Erin A. Gwynne
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
| | - Douglas W. Stephan
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, Canada M5S 3H6
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45
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Askevold B, Khusniyarov MM, Herdtweck E, Meyer K, Schneider S. A square-planar ruthenium(II) complex with a low-spin configuration. Angew Chem Int Ed Engl 2011; 49:7566-9. [PMID: 20806300 DOI: 10.1002/anie.201002296] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bjorn Askevold
- Department Chemie, Technische Universität München, Lichtenbergstrasse 4, 85748 Garching b. München, Germany
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46
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Baya M, Esteruelas MA, Oñate E. Efficient Concatenation of C═C Reduction, C−H Bond Activation, and C−C and C−N Coupling Reactions on Osmium: Assembly of Two Allylamines and an Allene. Organometallics 2010. [DOI: 10.1021/om100715k] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Miguel Baya
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Miguel A. Esteruelas
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
| | - Enrique Oñate
- Departamento de Química Inorgánica, Instituto de Ciencia de Materiales de Aragón, Universidad de Zaragoza−CSIC, 50009 Zaragoza, Spain
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47
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Paneque M, Poveda ML, Rendón N. Synthesis and Reactivity of Iridacycles Containing the Tp
Me2
Ir Moiety. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000809] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Margarita Paneque
- Instituto de Investigaciones Químicas and Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avda. Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, Fax: +34‐954460565
| | - Manuel L. Poveda
- Instituto de Investigaciones Químicas and Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avda. Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, Fax: +34‐954460565
| | - Nuria Rendón
- Instituto de Investigaciones Químicas and Departamento de Química Inorgánica, Consejo Superior de Investigaciones Científicas (CSIC) and Universidad de Sevilla, Avda. Américo Vespucio 49, Isla de la Cartuja, 41092 Sevilla, Spain, Fax: +34‐954460565
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48
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Koridze AA, Polezhaev AV, Safronov SV, Sheloumov AM, Dolgushin FM, Ezernitskaya MG, Lokshin BV, Petrovskii PV, Peregudov AS. Cationic Ruthenium Hydrido−Carbonyls Derived from Metallocene-Based Pincers: Unusual Rearrangements and H2 Evolution with Formation of Cationic Ruthenium Metallocenylidenes. Organometallics 2010. [DOI: 10.1021/om100667p] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Avthandil A. Koridze
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
- Institute of Organometallic Chemistry, I. Javakhishvili Tbilisi State University, 3 Chavchavadze Avenue, 0128 Tbilisi, Georgia
| | - Alexander V. Polezhaev
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
| | - Sergey V. Safronov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
| | - Alexey M. Sheloumov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
| | - Fedor M. Dolgushin
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
| | - Mariam G. Ezernitskaya
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
| | - Boris V. Lokshin
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
| | - Pavel V. Petrovskii
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
| | - Alexander S. Peregudov
- A.N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 Vavilov Street, 119991 Moscow, Russian Federation
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49
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Tsvetkov N, Pink M, Fan H, Lee JH, Caulton KG. Redox and Lewis Acid Reactivity of Unsaturated OsII. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000503] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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50
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Askevold B, Khusniyarov MM, Herdtweck E, Meyer K, Schneider S. Ein quadratisch-planarer Ruthenium(II)-Komplex mit Low-Spin- Konfiguration. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201002296] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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