51
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Marcos I, Ojea V, Vázquez-García D, Fernández JJ, Fernández A, López-Torres M, Lado J, Vila JM. Preparation and characterization of terdentate [C,N,N] acetophenone and acetylpyridine hydrazone platinacycles: a DFT insight into the reaction mechanism. Dalton Trans 2017; 46:16845-16860. [PMID: 29171854 DOI: 10.1039/c7dt03418k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of N-ortho-chlorophenyl-substituted acetylpyridine hydrazones (a and d) with K2[PtCl4] (n-butanol/water, 100 °C) gave mononuclear complexes 1a and 1d with the ligands as [N,N] bidentate. In contrast, the reaction of N-phenyl or N-meta-chlorophenyl hydrazones (b and c, respectively) under analogous reaction conditions gave the cycloplatinated species 2b and 2c with the ligand as [C,N,N] terdentate. The treatment of the mononuclear complexes 1a and 1d with NaOAc (n-butanol, 100 °C) gave the corresponding cycloplatinated complexes 2a and 2d. Acetophenone hydrazone platinacycle 2e was prepared in a similar fashion and its reaction with tertiary mono- and triphosphines gave mono- or trinuclear species depending on the reaction conditions. The X-ray crystal structures of some of these complexes showed interesting π-π slipped stacking interactions between metallacyclic rings which, according to NCI analyses, showed an aromatic character. With an aim to rationalize the different reactivities shown by acetylpyridine hydrazones and the precise role of the acetate anion, the energy profiles for the three main steps of cycloplatination (iminoplatinum complex formation, chelation and cyclometallation) have been determined by using the DFT (M06) methods. Calculations indicate that the cycloplatination of 1b proceeds via electrophilic substitution, involving the direct replacement of the chloride anion at the Pt(ii) centre with the N-phenyl moiety as the rate-determining step, to give an agostic intermediate 5b+ that, subsequently, leads to the elimination of a proton as hydrogen chloride. When present as an "external" base, acetate enters the coordination sphere around the Pt(ii) centre and facilitates hydrazone N-H deprotonation and electrophilic C-H activation through a dissociative route, leading to a Wheland-type σ-complex intermediate 9ac.
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Affiliation(s)
- Ismael Marcos
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Vicente Ojea
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Digna Vázquez-García
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Jesús J Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Alberto Fernández
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Margarita López-Torres
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - Jorge Lado
- Departamento de Química & Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, E-15008 La Coruña, Spain.
| | - José M Vila
- Departamento de Química Inorgánica, Universidad de Santiago de Compostela, E-15782 Santiago de Compostela, Spain
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52
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Sajjad MA, Schwerdtfeger P, Harrison JA, Nielson AJ. Weak M···H-C Interactions in Neutral Complexes, Anions and Cations of Palladium(II) and Rhodium(I) Containing the iso
-Quinoline Ligand - Anagostic or Preagostic? Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201701094] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- M. Arif Sajjad
- Institute of Natural and Mathematical Sciences; Massey University Auckland; Private bag 102904, North Shore Mail Centre Auckland New Zealand
| | - Peter Schwerdtfeger
- Centre for Theoretical Chemistry and Physics; New Zealand Institute for Advanced Studies; 102904, North Shore Mail Centre Auckland New Zealand
| | - John A. Harrison
- Institute of Natural and Mathematical Sciences; Massey University Auckland; Private bag 102904, North Shore Mail Centre Auckland New Zealand
| | - Alastair J. Nielson
- Institute of Natural and Mathematical Sciences; Massey University Auckland; Private bag 102904, North Shore Mail Centre Auckland New Zealand
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53
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54
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Zhang X, Wang H, Yuan J, Guo S. Palladacycles incorporating a carboxylate-functionalized phosphine ligand: syntheses, characterization and their catalytic applications toward Suzuki couplings in water. TRANSIT METAL CHEM 2017. [DOI: 10.1007/s11243-017-0181-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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55
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Sun R, Chu X, Zhang S, Li T, Wang Z, Zhu B. Synthesis, Structure, Reactivity, and Catalytic Activity of Cyclometalated (Phosphine)- and (Phosphinite)ruthenium Complexes. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700479] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Ruichen Sun
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Xiaodan Chu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Shaowei Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Tongyu Li
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Zhuo Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules; Key Laboratory of Inorganic-Organic Hybrid Functional Material Chemistry; Ministry of Education; College of Chemistry; Tianjin Normal University; 300387 Tianjin P. R. China
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56
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Application of the five-membered ring products of cyclometalation reactions for hydrogen production. J Organomet Chem 2017. [DOI: 10.1016/j.jorganchem.2017.04.010] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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57
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Menges FS, Lang J, Nosenko Y, Kerner C, Gaffga M, Ghoochany LT, Thiel WR, Riehn C, Niedner-Schatteburg G. Exploring the Gas-Phase Activation and Reactivity of a Ruthenium Transfer Hydrogenation Catalyst by Experiment and Theory in Concert. J Phys Chem A 2017; 121:4422-4434. [PMID: 28509543 DOI: 10.1021/acs.jpca.7b02459] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This study elucidates structures, activation barriers, and the gas-phase reactivity of cationic ruthenium transfer hydrogenation catalysts of the structural type [(η6-cym)RuX(pympyr)]+. In these complexes, the central ruthenium(+II) ion is coordinated to an η6-bound p-cymene (η6-cym), a bidentate 2-R-4-(2-pyridinyl)pyrimidine ligand (pympyr) with R = NH2 or N(CH3)2, and an anion X = I-, Br-, Cl-, or CF3SO3-. We present infrared multiple-photon dissociation (IR-MPD) spectra of precursors (before HCl loss) and of activated complexes (after HCl loss), which elucidates C-H activation as the key step in the activation mechanism. A resonant two-color IR-MPD scheme serves to record several otherwise "dark" bands and enhances the validity of spectral assignments. We show that collision-induced dissociation (CID)-derived activation energies of the [(η6-cym)RuX(pympyr)]+ (R = N(CH3)2) complexes depend crucially on the anion X. The obtained activation energies for the HX loss correlate well with quantum chemical activation barriers and are in line with the HSAB concept. We further elucidate the reaction of the activated complexes with D2 under single-collision conditions. Quantum mechanical simulations substantiate that the resulting species represent analogues for hydrido intermediates formed after abstraction of H+ and H- from isopropanol, as postulated for the catalytic cycle of transfer hydrogenation by us before.
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Affiliation(s)
- Fabian S Menges
- Department of Chemistry, Yale University , New Haven, Connecticut 06520, United States
| | - Johannes Lang
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
| | - Yevgeniy Nosenko
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
| | - Christian Kerner
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
| | - Maximilian Gaffga
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
| | - Leila Taghizadeh Ghoochany
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
| | - Werner R Thiel
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
| | - Christoph Riehn
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
| | - Gereon Niedner-Schatteburg
- Fachbereich Chemie and Forschungszentrum OPTIMAS, Technische Universität Kaiserslautern , 67663 Kaiserslautern, Germany
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58
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[Benzylamine-K2-C,N]1,2-Bis (Diphenylphosphino)-Propane-k2-P,P] Palladium}Perchlorate, Mononuclear Complex of Ortho-Palladated Derived from Benzylamine. IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY, TRANSACTIONS A: SCIENCE 2017. [DOI: 10.1007/s40995-017-0210-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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59
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Nielson AJ, Harrison JA, Sajjad MA, Schwerdtfeger P. Electronic and Steric Manipulation of the Preagostic Interaction in Isoquinoline Complexes of Rh
I. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700086] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Alastair J. Nielson
- Institute of Natural and Mathematical Sciences Massey University Auckland Private bag 102904, North Shore Mail Centre 0745 Auckland New Zealand
| | - John A. Harrison
- Institute of Natural and Mathematical Sciences Massey University Auckland Private bag 102904, North Shore Mail Centre 0745 Auckland New Zealand
| | - M. Arif Sajjad
- Institute of Natural and Mathematical Sciences Massey University Auckland Private bag 102904, North Shore Mail Centre 0745 Auckland New Zealand
| | - Peter Schwerdtfeger
- Centre for Theoretical Chemistry and Physics Institute of Advanced Studies Massey University Auckland Private bag 102904, North Shore Mail Centre 0745 Auckland New Zealand
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60
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Sun R, Zhang S, Chu X, Zhu B. Synthesis, Structures, and Reactivity of Cyclometalated Complexes Formed by Insertion of Alkynes into M–C (M = Ir and Rh) Bonds. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00933] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ruichen Sun
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, PR China
| | - Shaowei Zhang
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, PR China
| | - Xiaodan Chu
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, PR China
| | - Bolin Zhu
- Tianjin Key Laboratory of
Structure and Performance for Functional Molecules; Key Laboratory
of Inorganic−Organic Hybrid Functional Material Chemistry,
Ministry of Education; College of Chemistry, Tianjin Normal University, Tianjin 300387, PR China
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61
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Qian H, Zhang T, Song L, Yu S, Yuan Q, Sun L, Zhang D, Yin Z, Dai Y. Di- and Tetranuclear Palladium(II) Complexes Containing C,N-Bidentate Furoylhydrazone for Suzuki-Miyaura Reactions. European J Org Chem 2017. [DOI: 10.1002/ejoc.201700027] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Hengyu Qian
- School of Materials Science and Engineering; Shanghai University; 99 Shang-Da Road 200444 Shanghai China
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
- Department of Chemistry; Shanghai University; Shang-Da Road 200444 Shanghai China
| | - Tongyan Zhang
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
| | - Liping Song
- School of Materials Science and Engineering; Shanghai University; 99 Shang-Da Road 200444 Shanghai China
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
- Department of Chemistry; Shanghai University; Shang-Da Road 200444 Shanghai China
| | - Shuyan Yu
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
| | - Qi Yuan
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
| | - Luyan Sun
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
| | - Dengfeng Zhang
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
| | - Zhigang Yin
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
| | - Yongxia Dai
- Key Laboratory of Surface & Interface Science of Henan; School of Material & Chemical Engineering; Zhengzhou University of Light Industry; 450002 Zhengzhou China
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62
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Warratz S, Burns DJ, Zhu C, Korvorapun K, Rogge T, Scholz J, Jooss C, Gelman D, Ackermann L. meta
‐C−H Bromination on Purine Bases by Heterogeneous Ruthenium Catalysis. Angew Chem Int Ed Engl 2017; 56:1557-1560. [DOI: 10.1002/anie.201609014] [Citation(s) in RCA: 110] [Impact Index Per Article: 15.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2016] [Revised: 11/12/2016] [Indexed: 12/22/2022]
Affiliation(s)
- Svenja Warratz
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - David J. Burns
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Cuiju Zhu
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Korkit Korvorapun
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Torben Rogge
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
| | - Julius Scholz
- Institut für MaterialphysikGeorg-August-Universität Göttingen Friedrich-Hund-Platz 1 37077 Göttingen Germany
| | - Christian Jooss
- Institut für MaterialphysikGeorg-August-Universität Göttingen Friedrich-Hund-Platz 1 37077 Göttingen Germany
- International Center for Advanced Studies of Energy Conversion (ICASEC)Georg-August University of Göttingen Germany
| | - Dmitri Gelman
- Institute of ChemistryThe Hebrew University Edmond Safra Campus 91904 Jerusalem Israel
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare ChemieGeorg-August-Universität Göttingen Tammannstrasse 2 37077 Göttingen Germany
- International Center for Advanced Studies of Energy Conversion (ICASEC)Georg-August University of Göttingen Germany
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63
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Warratz S, Burns DJ, Zhu C, Korvorapun K, Rogge T, Scholz J, Jooss C, Gelman D, Ackermann L. meta
-C−H Bromination on Purine Bases by Heterogeneous Ruthenium Catalysis. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201609014] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Svenja Warratz
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - David J. Burns
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Cuiju Zhu
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Korkit Korvorapun
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Torben Rogge
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Julius Scholz
- Institut für Materialphysik; Georg-August-Universität Göttingen; Friedrich-Hund-Platz 1 37077 Göttingen Germany
| | - Christian Jooss
- Institut für Materialphysik; Georg-August-Universität Göttingen; Friedrich-Hund-Platz 1 37077 Göttingen Germany
- International Center for Advanced Studies of Energy Conversion (ICASEC); Georg-August University of Göttingen; Germany
| | - Dmitri Gelman
- Institute of Chemistry; The Hebrew University; Edmond Safra Campus 91904 Jerusalem Israel
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
- International Center for Advanced Studies of Energy Conversion (ICASEC); Georg-August University of Göttingen; Germany
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64
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Sajjad MA, Christensen KE, Rees NH, Schwerdtfeger P, Harrison JA, Nielson AJ. Chasing the agostic interaction in ligand assisted cyclometallation reactions of palladium(ii). Dalton Trans 2017; 46:16126-16138. [DOI: 10.1039/c7dt03525j] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Computations show that a possible aromatic ring agostic intermediate seen by NMR spectroscopy in a cyclometallation reaction by palladium(ii) can involve CCπ electron density close to the agostic carbon being donated to the metal.
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Affiliation(s)
- M. Arif Sajjad
- Chemistry
- Institute of Natural and Mathematical Sciences
- Massey University Auckland
- Auckland
- New Zealand
| | | | - Nicholas H. Rees
- Inorganic Chemistry Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Peter Schwerdtfeger
- Centre for Theoretical and Physics
- The New Zealand Institute for Advanced Study
- Massey University Auckland
- Auckland
- New Zealand
| | - John A. Harrison
- Chemistry
- Institute of Natural and Mathematical Sciences
- Massey University Auckland
- Auckland
- New Zealand
| | - Alastair J. Nielson
- Chemistry
- Institute of Natural and Mathematical Sciences
- Massey University Auckland
- Auckland
- New Zealand
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65
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Kerner C, Neu JP, Gaffga M, Lang J, Oelkers B, Sun Y, Niedner-Schatteburg G, Thiel WR. Gas-phase reactivity of Cp* group IX metal complexes bearing aromatic N,N′-chelating ligands. NEW J CHEM 2017. [DOI: 10.1039/c7nj01079f] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Compounds of the type [(η5-Cp*)M(Cl)(N,N′)]+ bearing N,N′-coordinating ligands show different modes of HCl cleavage depending on the nature of the N,N′-chelate ligand and the metal center.
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Affiliation(s)
- Christian Kerner
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
| | - Jens P. Neu
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
| | - Maximilian Gaffga
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
- State Research Centre OPTIMAS
| | - Johannes Lang
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
- State Research Centre OPTIMAS
| | - Benjamin Oelkers
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
| | - Yu Sun
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
| | - Gereon Niedner-Schatteburg
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
- State Research Centre OPTIMAS
| | - Werner R. Thiel
- Fachbereich Chemie
- Technische Universität Kaiserslautern
- 67663 Kaiserslautern
- Germany
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66
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Cabeza JA, García-Álvarez P, González-Álvarez L. Facile cyclometallation of a mesitylsilylene: synthesis and preliminary catalytic activity of iridium(iii) and iridium(v) iridasilacyclopentenes. Chem Commun (Camb) 2017; 53:10275-10278. [DOI: 10.1039/c7cc04832g] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
The cyclometallation of a monosilylene has been achieved in iridium(iii) and iridium(v) complexes; the former catalyse arene deuteriations and borylations.
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Affiliation(s)
- Javier A. Cabeza
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33071 Oviedo
- Spain
| | - Pablo García-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33071 Oviedo
- Spain
| | - Laura González-Álvarez
- Centro de Innovación en Química Avanzada (ORFEO-CINQA)
- Departamento de Química Orgánica e Inorgánica
- Universidad de Oviedo
- 33071 Oviedo
- Spain
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67
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Sun R, Wang T, Zhang S, Chu X, Zhu B. Synthesis, structures and catalytic activity of cyclometalated rhenium complexes. RSC Adv 2017. [DOI: 10.1039/c6ra28263f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023] Open
Abstract
Several five-membered cyclometalated rhenium complexes (1–5) were synthesized, and their photocatalytic activity on direct arylation of arenes with aryl halides was examined.
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Affiliation(s)
- Ruichen Sun
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Tian Wang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Shaowei Zhang
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Xiaodan Chu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
| | - Bolin Zhu
- Tianjin Key Laboratory of Structure and Performance for Functional Molecules
- Key Laboratory of Inorganic–Organic Hybrid Functional Material Chemistry
- Ministry of Education
- College of Chemistry
- Tianjin Normal University
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68
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Bhaskar R, Sharma AK, Yadav MK, Singh AK. Sonogashira (Cu and amine free) and Suzuki coupling in air catalyzed via nanoparticles formed in situ from Pd(ii) complexes of chalcogenated Schiff bases of 1-naphthaldehyde and their reduced forms. Dalton Trans 2017; 46:15235-15248. [DOI: 10.1039/c7dt02701j] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
The activation of the coupling reactions with the Pd(ii)-complexes (0.05–0.01 mol% loading) is significant in 1–2 h under mild conditions.
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Affiliation(s)
- Renu Bhaskar
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Alpesh K. Sharma
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Manoj K. Yadav
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
| | - Ajai K. Singh
- Department of Chemistry
- Indian Institute of Technology Delhi
- New Delhi 110016
- India
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69
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Sajjad MA, Christensen KE, Rees NH, Schwerdtfeger P, Harrison JA, Nielson AJ. New complexity for aromatic ring agostic interactions. Chem Commun (Camb) 2017; 53:4187-4190. [DOI: 10.1039/c7cc01167a] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Aromatic ring agostic interactions can be augmented by previously unrecognised CCπ to metal donation which has significant implication for ligand-assisted C–H bond functionalization.
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Affiliation(s)
- M. Arif Sajjad
- Chemistry, Institute of Natural and Mathematical Sciences
- Massey University Auckland
- Auckland
- New Zealand
| | | | - Nicholas H. Rees
- Inorganic Chemistry Laboratory
- Department of Chemistry
- University of Oxford
- Oxford
- UK
| | - Peter Schwerdtfeger
- Centre for Theoretical and Physics, The New Zealand Institute for Advanced Study
- Massey University Auckland
- Auckland
- New Zealand
| | - John A. Harrison
- Chemistry, Institute of Natural and Mathematical Sciences
- Massey University Auckland
- Auckland
- New Zealand
| | - Alastair J. Nielson
- Chemistry, Institute of Natural and Mathematical Sciences
- Massey University Auckland
- Auckland
- New Zealand
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70
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Application of five-membered ring products of cyclometalation reactions as sensing materials in sensing devices. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.09.008] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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71
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Shaw PA, Clarkson GJ, Rourke JP. Long-Lived Five-Coordinate Platinum(IV) Intermediates: Regiospecific C–C Coupling. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00697] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul A. Shaw
- Department of Chemistry, Warwick University, Coventry CV4 7AL, United Kingdom
| | - Guy J. Clarkson
- Department of Chemistry, Warwick University, Coventry CV4 7AL, United Kingdom
| | - Jonathan P. Rourke
- Department of Chemistry, Warwick University, Coventry CV4 7AL, United Kingdom
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72
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Avila-Sorrosa A, Jiménez-Vázquez HA, Reyes-Arellano A, Pioquinto-Mendoza JR, Toscano RA, González-Sebastián L, Morales-Morales D. Novel synthesis of a non-symmetric N 1 CN 2 Pd(II) pincer complex by a tandem reaction using a meta -hydroxylated imine ligand. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.06.019] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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73
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Zhang Y, Du Y, Jiang D, Behnke C, Nomura Y, Zhorov BS, Dong K. The Receptor Site and Mechanism of Action of Sodium Channel Blocker Insecticides. J Biol Chem 2016; 291:20113-24. [PMID: 27489108 DOI: 10.1074/jbc.m116.742056] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2016] [Indexed: 01/03/2023] Open
Abstract
Sodium channels are excellent targets of both natural and synthetic insecticides with high insect selectivity. Indoxacarb, its active metabolite DCJW, and metaflumizone (MFZ) belong to a relatively new class of sodium channel blocker insecticides (SCBIs) with a mode of action distinct from all other sodium channel-targeting insecticides, including pyrethroids. Electroneutral SCBIs preferably bind to and trap sodium channels in the inactivated state, a mechanism similar to that of cationic local anesthetics. Previous studies identified several SCBI-sensing residues that face the inner pore of sodium channels. However, the receptor site of SCBIs, their atomic mechanisms, and the cause of selective toxicity of MFZ remain elusive. Here, we have built a homology model of the open-state cockroach sodium channel BgNav1-1a. Our computations predicted that SCBIs bind in the inner pore, interact with a sodium ion at the focus of P1 helices, and extend their aromatic moiety into the III/IV domain interface (fenestration). Using model-driven mutagenesis and electrophysiology, we identified five new SCBI-sensing residues, including insect-specific residues. Our study proposes the first three-dimensional models of channel-bound SCBIs, sheds light on the molecular basis of MFZ selective toxicity, and suggests that a sodium ion located in the inner pore contributes to the receptor site for electroneutral SCBIs.
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Affiliation(s)
- Yongqiang Zhang
- From the College of Plant Protection, Southwest University, Chongqing 400716, China, the Department of Entomology, Genetics and Neuroscience Programs, Michigan State University, East Lansing, Michigan 48824
| | - Yuzhe Du
- the Department of Entomology, Genetics and Neuroscience Programs, Michigan State University, East Lansing, Michigan 48824
| | - Dingxin Jiang
- the Department of Entomology, Genetics and Neuroscience Programs, Michigan State University, East Lansing, Michigan 48824
| | - Caitlyn Behnke
- the Department of Entomology, Genetics and Neuroscience Programs, Michigan State University, East Lansing, Michigan 48824
| | - Yoshiko Nomura
- the Department of Entomology, Genetics and Neuroscience Programs, Michigan State University, East Lansing, Michigan 48824
| | - Boris S Zhorov
- the Department of Biochemistry and Biomedical Sciences, McMaster University, Hamilton, Ontario L8S 4K1, Canada, and the Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg 194223, Russia
| | - Ke Dong
- the Department of Entomology, Genetics and Neuroscience Programs, Michigan State University, East Lansing, Michigan 48824,
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74
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Wang H, Lorion MM, Ackermann L. Overcoming the Limitations of C−H Activation with Strongly Coordinating N-Heterocycles by Cobalt Catalysis. Angew Chem Int Ed Engl 2016; 55:10386-90. [DOI: 10.1002/anie.201603260] [Citation(s) in RCA: 157] [Impact Index Per Article: 19.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 06/13/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Hui Wang
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Mélanie M. Lorion
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
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75
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Wang H, Lorion MM, Ackermann L. Overcoming the Limitations of C−H Activation with Strongly Coordinating N-Heterocycles by Cobalt Catalysis. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201603260] [Citation(s) in RCA: 38] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hui Wang
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Mélanie M. Lorion
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
| | - Lutz Ackermann
- Institut für Organische und Biomolekulare Chemie; Georg-August-Universität Göttingen; Tammannstrasse 2 37077 Göttingen Germany
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76
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Juliá F, González-Herrero P. Aromatic C-H Activation in the Triplet Excited State of Cyclometalated Platinum(II) Complexes Using Visible Light. J Am Chem Soc 2016; 138:5276-82. [PMID: 27058394 DOI: 10.1021/jacs.5b13311] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
The visible-light driven cyclometalation of arene substrates containing an N-donor heteroaromatic moiety as directing group by monocyclometalated Pt(II) complexes is reported. Precursors of the type [PtMe(C^N)(N^CH)], where N^CH is 2-phenylpyridine (ppyH) or related compunds with diverse electronic properties and C^N is the corresponding cyclometalated ligand, afford homoleptic cis-[Pt(C^N)2] complexes upon irradiation with blue LEDs at room temperature with evolution of methane. Heteroleptic derivatives cis-[Pt(ppy)(C'^N')] are obtained analogously from [PtMe(ppy)(N'^C'H)], where N'^C'H represents an extended set of heteroaromatic compounds. Experimental and computational studies demonstrate an unprecedented C-H oxidative addition, which is initiated by a triplet excited state of metal-to-ligand charge-transfer (MLCT) character and leads to a detectable Pt(IV) methyl hydride intermediate.
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Affiliation(s)
- Fabio Juliá
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia , Apartado 4021, 30071 Murcia, Spain
| | - Pablo González-Herrero
- Departamento de Química Inorgánica, Facultad de Química, Universidad de Murcia , Apartado 4021, 30071 Murcia, Spain
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77
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Zhao B, Shi Z, Yuan Y. Transition-metal-catalyzed Chelation-assisted C-H Functionalization of Aromatic Substrates. CHEM REC 2016; 16:886-96. [DOI: 10.1002/tcr.201500241] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2015] [Indexed: 12/11/2022]
Affiliation(s)
- Binlin Zhao
- College of Chemistry and Chemical Engineering, Yangzhou University; 280 Siwangting Road Yangzhou 225002 P. R. China
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University; Nanjing 210093 P. R. China
| | - Zhuangzhi Shi
- State Key Laboratory of Coordination Chemistry, Collaborative Innovation Center of Chemistry for Life Sciences, School of Chemistry and Chemical Engineering, Nanjing University; Nanjing 210093 P. R. China
| | - Yu Yuan
- College of Chemistry and Chemical Engineering, Yangzhou University; 280 Siwangting Road Yangzhou 225002 P. R. China
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78
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Omae I. Application of the five-membered ring blue light-emitting iridium products of cyclometalation reactions as OLEDs. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2015.08.009] [Citation(s) in RCA: 93] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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79
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Wang H, Yang J. Synthesis and characterizations of arsine- and stibine-ligated Schiff base palladacycles and their applications in Suzuki-Miyaura cross-coupling reactions. Appl Organomet Chem 2016. [DOI: 10.1002/aoc.3426] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Haozhen Wang
- Department of Chemistry; Huaibei Normal University; Huaibei Anhui 235000 People's Republic of China
| | - Jin Yang
- Department of Chemistry; Huaibei Normal University; Huaibei Anhui 235000 People's Republic of China
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80
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Song MX, Li Y, Xu D, Deng RP, Bai FQ, Qin ZK. New exploration towards dinuclear iridium(ii) complexes materials under chlorine-bridged precursor. RSC Adv 2016. [DOI: 10.1039/c6ra10577g] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
As an important precursor for synthesizing Iridium complex, two similar chlorine-bridged dinuclear complexes, which are bright, were studied by experiment and theory.
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Affiliation(s)
- Ming-Xing Song
- College of Information Technology
- Jilin Normal University
- Siping 136000
- People's Republic of China
| | - Yuan Li
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Duo Xu
- College of Information Technology
- Jilin Normal University
- Siping 136000
- People's Republic of China
| | - Rui-Ping Deng
- State Key Laboratory of Rare Earth Resource Utilization
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
- Changchun 130022
- People's Republic of China
| | - Fu-Quan Bai
- Institute of Theoretical Chemistry
- Jilin University
- Changchun 130023
- China
| | - Zheng-Kun Qin
- College of Information Technology
- Jilin Normal University
- Siping 136000
- People's Republic of China
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81
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Naya L, Vázquez-García D, Fernández A, López-Torres M, Ojea V, Marcos I, Vila JM, Fernández JJ. Preparation of Imidazol-2-ylidene Carbene Palladacycles with Bi- and Tridentate Schiff Bases - Analyses of the Spectroscopic, Molecular Structure, and DFT Calculation Data. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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82
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Harrison JA, Nielson AJ, Sajjad MA, Saunders GC, Schwerdtfeger P. Steric and Electronic Manipulation of the Anagostic Interaction in 1-Tetralone Oxime and Imine Complexes of Rhodium(I). Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201501122] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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83
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Li J, Warratz S, Zell D, De Sarkar S, Ishikawa EE, Ackermann L. N-Acyl Amino Acid Ligands for Ruthenium(II)-Catalyzed meta-C–H tert-Alkylation with Removable Auxiliaries. J Am Chem Soc 2015; 137:13894-901. [DOI: 10.1021/jacs.5b08435] [Citation(s) in RCA: 267] [Impact Index Per Article: 29.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
- Jie Li
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Svenja Warratz
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Daniel Zell
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Suman De Sarkar
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Eloisa Eriko Ishikawa
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077 Göttingen, Germany
| | - Lutz Ackermann
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstrasse 2, 37077 Göttingen, Germany
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84
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Stoccoro S, Maidich L, Ruiu T, Cinellu MA, Clarkson GJ, Zucca A. Chiral cyclometalation of 6-(1-phenylbenzyl)-2,2'-bipyridine. Dalton Trans 2015; 44:18001-11. [PMID: 26407175 DOI: 10.1039/c5dt02483h] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new bipyridine ligand, 6-(1-phenylbenzyl)-2,2'-bipyridine, has been prepared by a multistep synthesis starting from the corresponding substituted pyridine. The coordinating properties of the new ligand have been tested with two d(8) metal ions, Pt(ii) and Pd(ii), to give the cyclometalated complexes [Pt(N,N,C)Cl] and [Pd(N,N,C)Cl], where N,N,C is a terdentate deprotonated bipyridine containing a new stereogenic carbon atom directly generated by C-H bond activation. The single-crystal of the platinum complex has been solved by X-ray diffraction. DFT calculations confirm the presence of a PtH interaction that stabilizes one of the two possible conformers by 14.7 kJ mol(-1) for Pt and 12.9 kJ mol(-1) for Pd. The energy barrier to pass from one conformer to the other is 25.4 and 23.8 kJ mol(-1) respectively. Under different reaction conditions, regioselective activation of a pyridine C-H bond gave the less common cyclometalated rollover complex [Pt(L-H)Me(DMSO)], which was isolated and characterised.
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Affiliation(s)
- Sergio Stoccoro
- Dipartimento di Chimica e Farmacia, Università degli Studi di Sassari, via Vienna 2, 07100 Sassari, Italy.
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85
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Juribašić M, Užarević K, Gracin D, Ćurić M. Mechanochemical C-H bond activation: rapid and regioselective double cyclopalladation monitored by in situ Raman spectroscopy. Chem Commun (Camb) 2015; 50:10287-90. [PMID: 25056429 DOI: 10.1039/c4cc04423a] [Citation(s) in RCA: 81] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first direct mechanochemical transition-metal-mediated activation of strong phenyl C-H bonds is reported. The mechanochemical procedure, resulting in cyclopalladated complexes, is quantitative and significantly faster than solution synthesis and allows highly regioselective activation of two C-H bonds by palladium(II) acetate in asymmetrically substituted azobenzene. Milling is monitored by in situ solid-state Raman spectroscopy which in combination with quantum-chemical calculations enabled characterization of involved reaction species, direct insight into the dynamics and reaction pathways, as well as the optimization of a milling process.
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Affiliation(s)
- Marina Juribašić
- Ruđer Bošković Institute, Bijenička 54, HR-10000 Zagreb, Croatia.
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86
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Hubrich J, Himmler T, Rodefeld L, Ackermann L. Ruthenium(II)-Catalyzed C–H Arylation of Azoarenes by Carboxylate Assistance. ACS Catal 2015. [DOI: 10.1021/acscatal.5b00939] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jonathan Hubrich
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
| | - Thomas Himmler
- Bayer CropScience AG, BCS AG-R&D, Alfred-Nobel-Straße 50, 40789 Monheim, Germany
| | - Lars Rodefeld
- Bayer CropScience AG, BCS AG-R&D, Alfred-Nobel-Straße 50, 40789 Monheim, Germany
| | - Lutz Ackermann
- Institut
für Organische und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
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87
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Beck R, Camadanli S, Flörke U, Klein HF. Reactivity Diversification - Synthesis and Exchange Reactions of Cobalt and Iron 2-Alkenylpyridine/-pyrazine Complexes Obtained by Vinylic C(sp2)-H Activation. Eur J Inorg Chem 2015. [DOI: 10.1002/ejic.201500225] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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88
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A kinetic approach to carbon–iodide bond activation by rollover cycloplatinated(II) complexes containing monodentate phosphine ligands. J Organomet Chem 2015. [DOI: 10.1016/j.jorganchem.2015.01.015] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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89
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Asymmetric and symmetric triazenido cyclopalladated complexes: Synthesis, structural analysis and DFT calculations. J Mol Struct 2015. [DOI: 10.1016/j.molstruc.2014.11.069] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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90
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Moro AC, da Cunha GA, de Souza RFF, Mauro AE, Netto AVDG, Carlos IZ, Resende FA, Varanda EA, Pavan FR, Leite CQF. C 2 ,N-dimethylbenzylamine cyclopalladated compounds: evaluation of cytotoxic, mutagenic and antitubercular activities. Med Chem Res 2015. [DOI: 10.1007/s00044-015-1339-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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91
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Ackermann L. Robust Ruthenium(II)-Catalyzed C–H Arylations: Carboxylate Assistance for the Efficient Synthesis of Angiotensin-II-Receptor Blockers. Org Process Res Dev 2015. [DOI: 10.1021/op500330g] [Citation(s) in RCA: 256] [Impact Index Per Article: 28.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Affiliation(s)
- Lutz Ackermann
- Institut für Organische
und Biomolekulare Chemie, Georg-August-Universität, Tammannstraße 2, 37077 Göttingen, Germany
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92
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Roy S, Pramanik S, Ghorui T, Pramanik K. Insight into luminescent bisazoaromatic CNN pincer palladacycle: synthesis, structure, electrochemistry and some catalytic applications in C–C coupling. RSC Adv 2015. [DOI: 10.1039/c4ra16584e] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The 2-(phenylazo)azobenzene furnished novel palladacycles in excellent yield, which showed luminescence at rt and catalytic activity. The optoelectronic and electrochemical responses were substantiated with DFT and TDDFT.
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Affiliation(s)
- Sima Roy
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Shuvam Pramanik
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Tapas Ghorui
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
| | - Kausikisankar Pramanik
- Department of Chemistry
- Inorganic Chemistry Section
- Jadavpur University
- Kolkata – 700032
- India
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93
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Pandey DK, Khake SM, Gonnade RG, Punji B. Mono- and binuclear palladacycles via regioselective C–H bond activation: syntheses, mechanistic insights and catalytic activity in direct arylation of azoles. RSC Adv 2015. [DOI: 10.1039/c5ra18289a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023] Open
Abstract
Hybrid “POCN”-ligated mono- and binuclear palladacycles have been synthesized via the base-assisted regioselective C–H bond activation, and their mechanistic aspects and catalytic application for the arylation of azoles have been described.
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Affiliation(s)
- Dilip K. Pandey
- Organometallic Synthesis and Catalysis Group
- Chemical Engineering Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune – 411 008
- India
| | - Shrikant M. Khake
- Organometallic Synthesis and Catalysis Group
- Chemical Engineering Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune – 411 008
- India
| | - Rajesh G. Gonnade
- Centre for Material Characterization
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune – 411 008
- India
| | - Benudhar Punji
- Organometallic Synthesis and Catalysis Group
- Chemical Engineering Division
- CSIR-National Chemical Laboratory (CSIR-NCL)
- Pune – 411 008
- India
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94
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Crabtree RH. Deactivation in Homogeneous Transition Metal Catalysis: Causes, Avoidance, and Cure. Chem Rev 2014; 115:127-50. [DOI: 10.1021/cr5004375] [Citation(s) in RCA: 251] [Impact Index Per Article: 25.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Robert H. Crabtree
- Department
of Chemistry, Yale University, 225 Prospect Street, New Haven, Connecticut 06520-8107, United States
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95
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Semwal S, Ghorai D, Choudhury J. Wingtip-Dictated Cyclometalation of N-Heterocyclic Carbene Ligand Framework and Its Implication toward Tunable Catalytic Activity. Organometallics 2014. [DOI: 10.1021/om500876k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Shrivats Semwal
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Indore By-pass Road, Bhopal 462 066, India
| | - Debasish Ghorai
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Indore By-pass Road, Bhopal 462 066, India
| | - Joyanta Choudhury
- Organometallics & Smart Materials Laboratory, Department of Chemistry, Indian Institute of Science Education and Research Bhopal, Bhauri, Indore By-pass Road, Bhopal 462 066, India
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96
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Karami K, Haghighat Naeini N. Palladium nanoparticles supported on cucurbit[6]uril: an efficient heterogeneous catalyst for the Suzuki reaction under mild conditions. Appl Organomet Chem 2014. [DOI: 10.1002/aoc.3245] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- K. Karami
- Department of Chemistry; Isfahan University of Technology; Isfahan 84156/83111 Iran
| | - N. Haghighat Naeini
- Department of Chemistry; Isfahan University of Technology; Isfahan 84156/83111 Iran
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97
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Naya L, Vázquez-García D, Fernández A, López-Torres M, Marcos I, Lenis OA, Pereira MT, Vila JM, Fernández JJ. Novel palladacycle N-heterocyclic carbene complexes with bidentate [C,N] and terdentate [C,N,N] and [C,N,O] Schiff bases. Synthesis, characterization and crystal structure analysis. J Organomet Chem 2014. [DOI: 10.1016/j.jorganchem.2014.07.018] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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98
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Omae I. Applications of five-membered ring products of cyclometalation reactions as anticancer agents. Coord Chem Rev 2014. [DOI: 10.1016/j.ccr.2014.07.019] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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99
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Saxena P, Thirupathi N, Nethaji M. Depalladation of Neutral Monoalkyne- and Dialkyne-Inserted Palladacycles and Alkyne Insertion/Depalladation Reactions of Cationic Palladacycles Derived from N,N′,N″-Triarylguanidines as Facile Routes for Guanidine-Containing Heterocycles/Carbocycles: Synthetic, Structural, and Mechanistic Aspects. Organometallics 2014. [DOI: 10.1021/om500837v] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Priya Saxena
- Department
of Chemistry, University of Delhi, Delhi 110 007, India
| | | | - Munirathinam Nethaji
- Department
of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560 012, India
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100
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Tadano KI. Our recent progress on the intramolecular Diels-Alder reaction approach in natural products synthesis: synthetic studies of the octahydronaphthalene substructure of versipelostatins and the A/B/C-tricyclic substructure of GKK1032s. CHEM REC 2014; 14:623-40. [PMID: 25049071 DOI: 10.1002/tcr.201402008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2014] [Indexed: 11/06/2022]
Abstract
During this decade, the enantio- and stereoselective synthesis of natural products has been actively explored in the author's laboratory. In this account, the author outlines practical syntheses of the polycyclic substructures of two novel structurally formidable antibiotics, namely, the trans-fused octahydronaphthalene moiety of versipelostatins and the A/B/C-tricyclic decahydrofluorene moiety of GKK1032s. Both syntheses have been achieved with remarkable regio- and stereoselectivity via intramolecular Diels-Alder reactions using well-designed enantiomeric substrates.
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Affiliation(s)
- Kin-Ichi Tadano
- Department of Applied Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, 223-8522, Japan.
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