1
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Bhat MUS, Ganie MA, Shah BA. Metal-Free Tunable 1,2-Difunctionalization of Terminal Alkynes: Synthesis of β-Substituted α,β-Unsaturated Ketones. Chemistry 2023; 29:e202302294. [PMID: 37691543 DOI: 10.1002/chem.202302294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2023] [Revised: 08/25/2023] [Accepted: 09/11/2023] [Indexed: 09/12/2023]
Abstract
A metal-free tunable 1,2-difunctionalization of the terminal alkynes showcasing a tandem installation of C-C and C-S bonds has been developed. The key enabling factor for the approach is the use of acetic acid as an acyl source to synthesize β-substituted α,β-unsaturated ketones. The reaction at room temperature leads to the regioselective acylation at the terminal carbon of alkynes, whereas at -78 °C, the acylation occurs at the more substituted carbon.
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Affiliation(s)
- Muneer-Ul-Shafi Bhat
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine (CSIR-IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 20002, India
| | - Majid Ahmad Ganie
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine (CSIR-IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 20002, India
| | - Bhahwal Ali Shah
- Natural Product and Medicinal Chemistry Division, Indian Institute of Integrative Medicine (CSIR-IIIM), Jammu, 180001, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 20002, India
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2
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Hamill JM, Ismael A, Al-Jobory A, Bennett TLR, Alshahrani M, Wang X, Akers-Douglas M, Wilkinson LA, Robinson BJ, Long NJ, Lambert C, Albrecht T. Quantum Interference and Contact Effects in the Thermoelectric Performance of Anthracene-Based Molecules. THE JOURNAL OF PHYSICAL CHEMISTRY. C, NANOMATERIALS AND INTERFACES 2023; 127:7484-7491. [PMID: 37113454 PMCID: PMC10123663 DOI: 10.1021/acs.jpcc.3c00069] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 03/30/2023] [Indexed: 06/19/2023]
Abstract
We report on the single-molecule electronic and thermoelectric properties of strategically chosen anthracene-based molecules with anchor groups capable of binding to noble metal substrates, such as gold and platinum. Specifically, we study the effect of different anchor groups, as well as quantum interference, on the electric conductance and the thermopower of gold/single-molecule/gold junctions and generally find good agreement between theory and experiments. All molecular junctions display transport characteristics consistent with coherent transport and a Fermi alignment approximately in the middle of the highest occupied molecular orbital/lowest unoccupied molecular orbital gap. Single-molecule results are in agreement with previously reported thin-film data, further supporting the notion that molecular design considerations may be translated from the single- to many-molecule devices. For combinations of anchor groups where one binds significantly more strongly to the electrodes than the other, the stronger anchor group appears to dominate the thermoelectric behavior of the molecular junction. For other combinations, the choice of electrode material can determine the sign and magnitude of the thermopower. This finding has important implications for the design of thermoelectric generator devices, where both n- and p-type conductors are required for thermoelectric current generation.
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Affiliation(s)
- Joseph M. Hamill
- School
of Chemistry, University of Birmingham, Edgbaston Campus, Birmingham B15 2TT, U.K.
| | - Ali Ismael
- Physics
Department, Lancaster University, Lancaster LA1 4YB, U.K.
| | - Alaa Al-Jobory
- Physics
Department, Lancaster University, Lancaster LA1 4YB, U.K.
- Department
of Physics, College of Science, University
of Anbar, Ramadi 31001, Anbar, Iraq
| | - Troy L. R. Bennett
- Department
of Chemistry, Imperial College London, MSRH, White City, London W12 0BZ, U.K.
| | - Maryam Alshahrani
- Physics
Department, Lancaster University, Lancaster LA1 4YB, U.K.
- Physics
Department, College of Science, University
of Bisha, P.O. Box 344, Bisha 61922, Kingdom of Saudi Arabia
| | - Xintai Wang
- Physics
Department, Lancaster University, Lancaster LA1 4YB, U.K.
- School
of
Information Science and Technology, Dalian
Maritime University, Dalian 116026, China
| | - Maxwell Akers-Douglas
- Department
of Chemistry, Imperial College London, MSRH, White City, London W12 0BZ, U.K.
| | - Luke A. Wilkinson
- Department
of Chemistry, Imperial College London, MSRH, White City, London W12 0BZ, U.K.
| | | | - Nicholas J. Long
- Department
of Chemistry, Imperial College London, MSRH, White City, London W12 0BZ, U.K.
| | - Colin Lambert
- Physics
Department, Lancaster University, Lancaster LA1 4YB, U.K.
| | - Tim Albrecht
- School
of Chemistry, University of Birmingham, Edgbaston Campus, Birmingham B15 2TT, U.K.
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3
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Findlay JA, Ross DAW, Crowley JD. Ferrocene Rotary Switches Featuring 2‐Pyridyl‐1,2,3‐triazole “Click” Chelates. Eur J Inorg Chem 2022. [DOI: 10.1002/ejic.202100948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- James A. Findlay
- Department of Chemistry University of Otago Dunedin 9054 New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology Wellington 6140 New Zealand
| | - Daniel A. W. Ross
- Department of Chemistry University of Otago Dunedin 9054 New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology Wellington 6140 New Zealand
| | - James D. Crowley
- Department of Chemistry University of Otago Dunedin 9054 New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology Wellington 6140 New Zealand
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4
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Naher M, Gorenskaia E, Moggach SA, Becker T, Nichols RJ, Lambert CJ, Low PJ. A one-pot synthesis of oligo(arylene–ethynylene)-molecular wires and their use in the further verification of molecular circuit laws†. Aust J Chem 2022. [DOI: 10.1071/ch21235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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5
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Abstract
The first general route toward polysubstituted ferrocenesulfonyl fluorides is described. Merging deprotometallations, 'halogen dance' reaction, Sonogashira, Suzuki-Miyaura and Negishi cross-couplings with SuFEx chemistry allowed original ferrocenes of an unprecedented diversity to be obtained.
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Affiliation(s)
- William Erb
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France.
| | - Thierry Roisnel
- Univ Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes), UMR 6226, F-35000 Rennes, France.
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6
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Evans DM, Hughes DD, Murphy PJ, Horton PN, Coles SJ, de Biani FF, Corsini M, Butler IR. Synthetic Route to 1,1′,2,2′-Tetraiodoferrocene That Avoids Isomerization and the Electrochemistry of Some Tetrahaloferrocenes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00256] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Daniel M. Evans
- School of Natural Sciences, Bangor University, Bangor, Gwynedd, LL57 2UW, U.K
| | - David D. Hughes
- School of Natural Sciences, Bangor University, Bangor, Gwynedd, LL57 2UW, U.K
| | - Patrick J. Murphy
- School of Natural Sciences, Bangor University, Bangor, Gwynedd, LL57 2UW, U.K
| | - Peter N. Horton
- EPSRC National Crystallography Centre, University of Southampton, Southampton SO17 1BJ. U.K
| | - Simon J. Coles
- EPSRC National Crystallography Centre, University of Southampton, Southampton SO17 1BJ. U.K
| | - Fabrizia Fabrizi de Biani
- Dipartimento di Biotecnologie Chimica e Farmacia and C.I.R.C.M.S.B., Università di Siena Via Aldo Moro, 53100 Siena, Italy
| | - Maddalena Corsini
- Dipartimento di Biotecnologie Chimica e Farmacia and C.I.R.C.M.S.B., Università di Siena Via Aldo Moro, 53100 Siena, Italy
| | - Ian R. Butler
- Department of Electronic Engineering and Computer Science, Bangor University, Bangor, Gwynedd LL57 2DG, U.K
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7
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Mamane V, Peluso P, Aubert E, Weiss R, Wenger E, Cossu S, Pale P. Disubstituted Ferrocenyl Iodo- and Chalcogenoalkynes as Chiral Halogen and Chalcogen Bond Donors. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00633] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Victor Mamane
- Institut de Chimie de Strasbourg, UMR CNRS 7177, Equipe LASYROC, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Paola Peluso
- Istituto di Chimica Biomolecolare ICB, CNR, Sede secondaria di Sassari, Traversa La Crucca 3, Regione Baldinca, 07100 Li Punti, Sassari, Italy
| | - Emmanuel Aubert
- , Université de Lorraine, CNRS, CRM2, Bd des Aiguillettes, F-54000 Nancy, France
| | - Robin Weiss
- Institut de Chimie de Strasbourg, UMR CNRS 7177, Equipe LASYROC, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
| | - Emmanuel Wenger
- , Université de Lorraine, CNRS, CRM2, Bd des Aiguillettes, F-54000 Nancy, France
| | - Sergio Cossu
- Dipartimento di Scienze Molecolari e Nanosistemi DSMN, Università Ca’ Foscari Venezia, Via Torino 155, 30172 Mestre Venezia, Italy
| | - Patrick Pale
- Institut de Chimie de Strasbourg, UMR CNRS 7177, Equipe LASYROC, 1 rue Blaise Pascal, 67008 Strasbourg Cedex, France
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8
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Butler IR, Mehdar YTH, Al-Taie ZS. The self-indicating preparation of bromoferrocenes from stannylferrocenes and an improved synthesis of di-iodoferrocene. Heliyon 2020; 6:e04824. [PMID: 32954028 PMCID: PMC7486603 DOI: 10.1016/j.heliyon.2020.e04824] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2018] [Revised: 06/01/2020] [Accepted: 08/26/2020] [Indexed: 11/26/2022] Open
Abstract
A simple method for the preparation of bromoferrocenes from stannylferrocenes is described: the preparation of 1,1′-dibromoferrocene is used as an example. Stannylferrocenes are reacted with bromine directly in dichloromethane to give bromoferrocenes in a self-indicating titration reaction. Also, an enhanced method of removal of the highly soluble organotin tin by-products formed in the preparation of 1,1′-diiodoferrocene from 1,1′-tri-n-butylstannylferrocene is reported allowing the preparation of large-scale quantities of 1,1′-diiodoferrocene, which is one of the most important starting materials in ferrocene chemistry.
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Affiliation(s)
- Ian R Butler
- Department of Electrical and Electronic Engineering, Bangor University, Bangor, Gwynedd, LL57 1UT, UK
| | - Yassin T H Mehdar
- Department of Chemistry, Bangor University, Bangor, Gwynedd LL57 2UW, UK
| | - Zahraa S Al-Taie
- Department of Chemistry, College of Science, Al-Nahrain University, Baghdad, Iraq
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9
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Oliveira CG, Romero-Canelón I, Silva MM, Coverdale JPC, Maia PIS, Batista AA, Castelli S, Desideri A, Sadler PJ, Deflon VM. Palladium(ii) complexes with thiosemicarbazones derived from pyrene as topoisomerase IB inhibitors. Dalton Trans 2020; 48:16509-16517. [PMID: 31670343 DOI: 10.1039/c9dt02570g] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
New palladium complexes with thiosemicarbazonate ligands derived from pyrene exhibit potent antiproliferative activity against A2780 and cisplatin-resistant A2780Cis human ovarian cancer cells, which is dependent on substituent groups of the thiosemicarbazone ligands. Cellular accumulation and distribution studies confirmed that palladium enters the cell nucleus. DNA and topoisomerase IB studies show that one complex is a potent TopIB inhibitor, with selectivity for cancer versus normal cells.
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Affiliation(s)
- Carolina G Oliveira
- São Carlos Institute of Chemistry, University of São Paulo, 13560-970, São Carlos, Brazil.
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10
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Oliveira CG, Romero-Canelón I, Coverdale JPC, Maia PIS, Clarkson GJ, Deflon VM, Sadler PJ. Novel tetranuclear PdII and PtII anticancer complexes derived from pyrene thiosemicarbazones. Dalton Trans 2020; 49:9595-9604. [DOI: 10.1039/d0dt01133a] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Cyclometallated palladium(ii) and platinum(ii) pyrenyl-derived thiosemicarbazone (H2PrR) complexes of the type [M4(μ-S-PrR-κ3-C,N,S)4] (M = PdII, PtII; R = ethyl, cyclohexyl) have been synthesised in good yields and fully characterised.
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Affiliation(s)
- Carolina G. Oliveira
- São Carlos Institute of Chemistry
- University of São Paulo
- São Carlos
- Brazil
- Institute of Chemistry
| | | | | | - Pedro Ivo S. Maia
- Department of Chemistry
- Federal University of the Triângulo Mineiro
- 38025-440 Uberaba
- Brazil
| | | | - Victor M. Deflon
- São Carlos Institute of Chemistry
- University of São Paulo
- São Carlos
- Brazil
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11
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Oliveira CG, Dalmolin LF, Silva RTC, Lopez RFV, Maia PIS, Moreto JA. PLGA-nanoparticles loaded with a thiosemicarbazone derived palladium( ii) complex as a potential agent to new formulations for human ovarian carcinoma treatment. NEW J CHEM 2020. [DOI: 10.1039/d0nj00580k] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The encapsulation process of the PdII complex [PdCl(PPh3)(PrCh)], a promising cytotoxic agent on ovarian cancer cells, in PLGA polymer was studied. The cytotoxicity results showed that the formulation led to a significant reduction of the ovarian cell viability (80% at 1 μM).
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Affiliation(s)
- Carolina G. Oliveira
- Institute of Chemistry
- Federal University of Uberlândia (UFU)
- Uberlândia
- Brazil
- Institute of Exact Sciences
| | - Luciana F. Dalmolin
- Department of Pharmaceutical Sciences
- School of Pharmaceutical Sciences of Ribeirão Preto
- University of São Paulo (USP)
- Ribeirão Preto
- Brazil
| | - R. T. C. Silva
- Institute of Exact Sciences
- Naturals and Education
- Federal University of Triângulo Mineiro (UFTM)
- Avenida Doutor Randolfo Borges Júnior
- Univerdecidade
| | - Renata F. V. Lopez
- Department of Pharmaceutical Sciences
- School of Pharmaceutical Sciences of Ribeirão Preto
- University of São Paulo (USP)
- Ribeirão Preto
- Brazil
| | - Pedro I. S. Maia
- Institute of Exact Sciences
- Naturals and Education
- Federal University of Triângulo Mineiro (UFTM)
- Avenida Doutor Randolfo Borges Júnior
- Univerdecidade
| | - Jéferson A. Moreto
- Institute of Exact Sciences
- Naturals and Education
- Federal University of Triângulo Mineiro (UFTM)
- Avenida Doutor Randolfo Borges Júnior
- Univerdecidade
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12
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Synthesis and Characterisation of Linear and Towards Cyclic Diferrocenes with Alkynyl Spacers. INORGANICS 2018. [DOI: 10.3390/inorganics6030095] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Ferrocenediyl systems offer a motif that incorporates multiple functionality and redox-active centers, enabling these units to be used as molecular scaffolds in linear and cyclic compounds. Herein, we discuss a new modular methodology for the synthesis and incorporation of ferrocenediyl motifs within extended conjugated systems. We have synthesized a family of compounds featuring ferrocenediyl-ethynyl units with various para-substituted aromatic linkages. Extended linear, open-chain species have been isolated and understanding towards the analogous cyclic compounds gained. The new compounds have been probed using NMR, mass spectrometry, cyclic voltammetry and X-ray crystallography to gain further understanding of their structural and electronic properties.
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13
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Chauhan RS, Cordes DB, Slawin AM, Yadav S, Dash C. Reactivity of hemilabile pyridyl- and methyl-substituted pyrimidylselenolates with [MCl2(dppf)] (M = Pd, pt; dppf = bis(diphenylphisphino)ferrocene). Inorganica Chim Acta 2018. [DOI: 10.1016/j.ica.2018.03.034] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Findlay JA, McAdam CJ, Sutton JJ, Preston D, Gordon KC, Crowley JD. Metallosupramolecular Architectures Formed with Ferrocene-Linked Bis-Bidentate Ligands: Synthesis, Structures, and Electrochemical Studies. Inorg Chem 2018; 57:3602-3614. [PMID: 29381330 DOI: 10.1021/acs.inorgchem.7b02503] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
The self-assembly of ligands of different geometries with metal ions gives rise to metallosupramolecular architectures of differing structural types. The rotational flexibility of ferrocene allows for conformational diversity, and, as such, self-assembly processes with 1,1'-disubstituted ferrocene ligands could lead to a variety of interesting architectures. Herein, we report a small family of three bis-bidentate 1,1'-disubstituted ferrocene ligands, functionalized with either 2,2'-bipyridine or 2-pyridyl-1,2,3-triazole chelating units. The self-assembly of these ligands with the (usually) four-coordinate, diamagnetic metal ions Cu(I), Ag(I), and Pd(II) was examined using a range of techniques including 1H and DOSY NMR spectroscopies, high-resolution electrospray ionization mass spectrometry, X-ray crystallography, and density functional theory calculations. Additionally, the electrochemical properties of these redox-active metallosupramolecular assemblies were examined using cyclic voltammetry and differential pulse voltammetry. The copper(I) complexes of the 1,1'-disubstituted ferrocene ligands were found to be coordination polymers, while the silver(I) and palladium(II) complexes formed discrete [1 + 1] or [2 + 2] metallomacrocyclic architectures.
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Affiliation(s)
- James A Findlay
- Department of Chemistry , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - C John McAdam
- Department of Chemistry , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Joshua J Sutton
- Department of Chemistry , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Dan Preston
- Department of Chemistry , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - Keith C Gordon
- Department of Chemistry , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
| | - James D Crowley
- Department of Chemistry , University of Otago , P.O. Box 56, Dunedin 9054 , New Zealand
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15
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Böserle J, Zhigulin G, Štěpnička P, Horký F, Erben M, Jambor R, Růžička A, Ketkov S, Dostál L. Facile activation of alkynes with a boraguanidinato-stabilized germylene: a combined experimental and theoretical study. Dalton Trans 2017; 46:12339-12353. [PMID: 28891560 DOI: 10.1039/c7dt01950e] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
A boraguanidinato-stabilized germylene, [(i-Pr)2NB(N-2,6-Me2C6H3)2]Ge, reacts with alkynes RC[triple bond, length as m-dash]CR selectively in a 2 : 1 molar ratio to afford 3,4-R,R'-1,2-digermacyclobut-3-enes 1a-e as the products of formal [2 + 2 + 2] cyclization [R/R' = Me/Me (1a), Ph/Ph (1b), Ph/H (1c), t-Bu/H (1d) and Cy/H (1e)]. Ferrocenyl-substituted alkynes react similarly, yielding the corresponding ferrocenylated 3,4-R,R'-1,2-digermacyclobut-3-enes 2a-d [where R/R' = Fc/H (2a), Fc/Me (2b), Fc/Ph (2c), and Fc/Fc (2d); Fc = ferrocenyl]. By contrast, only one of the triple bonds available in conjugated diynes RC[triple bond, length as m-dash]CC[triple bond, length as m-dash]CR is activated with the germylene, while the second one remains intact even in the presence of an excess of the germylene. The exclusive formation of 3,4-R,(C[triple bond, length as m-dash]CR)-1,2-digermacyclobut-3-enes 3a-c [R = Ph (3a), t-Bu(3b), and Fc (3c)] was ascribed to a steric repulsion around the second triple bond. On the other hand, the reaction of the germylene with more flexible dialkyne fc(C[triple bond, length as m-dash]CPh)2 (fc = ferrocene-1,1'-diyl) proceeded in the expected manner, producing compound 4, where both triple bonds are transformed into 1,2-digermacyclobut-3-ene rings by reaction with four equivalents of the germylene. All compounds were characterized by multinuclear NMR spectroscopy, Raman and IR spectroscopy, and in the case of 1a-c, 2a, 2c, 3a, 3b and 4, also by single-crystal X-ray diffraction analysis. The ferrocenyl substituted compounds were studied by cyclic voltammetry (CV). Finally, the plausible reaction pathway was studied for a model reaction of [(i-Pr)2NB(N-2,6-Me2C6H3)2]Ge with MeC[triple bond, length as m-dash]CMe using DFT computations.
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Affiliation(s)
- Jiří Böserle
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.
| | - Grigory Zhigulin
- G. A. Razuvaev Institute of Organometallic Chemistry RAS, 49 Tropinin St., 603950 Nizhny Novgorod, Russian Federation.
| | - Petr Štěpnička
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, CZ-12840 Prague, Czech Republic
| | - Filip Horký
- Department of Inorganic Chemistry, Faculty of Science, Charles University, Hlavova 2030, CZ-12840 Prague, Czech Republic
| | - Milan Erben
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.
| | - Roman Jambor
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.
| | - Sergey Ketkov
- G. A. Razuvaev Institute of Organometallic Chemistry RAS, 49 Tropinin St., 603950 Nizhny Novgorod, Russian Federation.
| | - Libor Dostál
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, CZ-532 10 Pardubice, Czech Republic.
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16
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Wilson LE, Hassenrück C, Winter RF, White AJP, Albrecht T, Long NJ. Ferrocene- and Biferrocene-Containing Macrocycles towards Single-Molecule Electronics. Angew Chem Int Ed Engl 2017; 56:6838-6842. [PMID: 28497507 PMCID: PMC5499722 DOI: 10.1002/anie.201702006] [Citation(s) in RCA: 36] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Indexed: 11/24/2022]
Abstract
Cyclic multiredox centered systems are currently of great interest, with new compounds being reported and developments made in understanding their behavior. Efficient, elegant, and high‐yielding (for macrocyclic species) synthetic routes to two novel alkynyl‐conjugated multiple ferrocene‐ and biferrocene‐containing cyclic compounds are presented. The electronic interactions between the individual ferrocene units have been investigated through electrochemistry, spectroelectrochemistry, density functional theory (DFT), and crystallography to understand the effect of cyclization on the electronic properties and structure.
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Affiliation(s)
- Lucy E Wilson
- Imperial College of Science, Dept. of Chemistry, South Kensington, London, SW7 2AZ, UK
| | - Christopher Hassenrück
- Universität Konstanz, Fachbereich Chemie, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Rainer F Winter
- Universität Konstanz, Fachbereich Chemie, Universitätsstraße 10, 78457, Konstanz, Germany
| | - Andrew J P White
- Imperial College of Science, Dept. of Chemistry, South Kensington, London, SW7 2AZ, UK
| | - Tim Albrecht
- Imperial College of Science, Dept. of Chemistry, South Kensington, London, SW7 2AZ, UK
| | - Nicholas J Long
- Imperial College of Science, Dept. of Chemistry, South Kensington, London, SW7 2AZ, UK
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17
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Wilson LE, Hassenrück C, Winter RF, White AJP, Albrecht T, Long NJ. Ferrocene- and Biferrocene-Containing Macrocycles towards Single-Molecule Electronics. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Lucy E. Wilson
- Imperial College of Science; Dept. of Chemistry; South Kensington London SW7 2AZ UK
| | | | - Rainer F. Winter
- Universität Konstanz; Fachbereich Chemie; Universitätsstraße 10 78457 Konstanz Germany
| | - Andrew J. P. White
- Imperial College of Science; Dept. of Chemistry; South Kensington London SW7 2AZ UK
| | - Tim Albrecht
- Imperial College of Science; Dept. of Chemistry; South Kensington London SW7 2AZ UK
| | - Nicholas J. Long
- Imperial College of Science; Dept. of Chemistry; South Kensington London SW7 2AZ UK
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18
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Hoffmann V, le Pleux L, Häussinger D, Unke OT, Prescimone A, Mayor M. Deltoid versus Rhomboid: Controlling the Shape of Bis-ferrocene Macrocycles by the Bulkiness of the Substituents. Organometallics 2017. [DOI: 10.1021/acs.organomet.6b00909] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Viktor Hoffmann
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Loïc le Pleux
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Daniel Häussinger
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Oliver T. Unke
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Alessandro Prescimone
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
| | - Marcel Mayor
- University of Basel, Department of Chemistry, St. Johanns-Ring 19, CH-4056 Basel, Switzerland
- Karlsruhe
Institute of Technology (KIT), Institute of Nanotechnology (INT), P.O. Box 3640, D-76021 Karlsruhe, Germany
- Lehn
Institute of Functional Materials (LIFM), Sun Yat-Sen University, Guangzhou 510275, China
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19
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Scottwell SØ, Barnsley JE, McAdam CJ, Gordon KC, Crowley JD. A ferrocene based switchable molecular folding ruler. Chem Commun (Camb) 2017. [DOI: 10.1039/c7cc03358c] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A bis(ferrocene) three tiered molecular folding ruler can be induced to undergo a large scale extension and contraction process using either chemical or better electrochemical methods.
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Affiliation(s)
| | - Jonathan E. Barnsley
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - C. John McAdam
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
| | - Keith C. Gordon
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
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20
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Iovine V, Cruciani F, Picini F, Varrone M, Rossi E, Bassetti M, D'Annibale A. Competitive Carbothiolation and Sonogashira Cross-Coupling in the Reaction of Trimethylsilylacetylene with Arylthioacetates. ChemistrySelect 2016. [DOI: 10.1002/slct.201601373] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Valentina Iovine
- Dipartimento di Chimica; Sapienza Università di Roma, P.le A. Moro 5; 00185 Roma Italy
| | - Federico Cruciani
- Dipartimento di Chimica; Sapienza Università di Roma, P.le A. Moro 5; 00185 Roma Italy
| | - Flavio Picini
- Dipartimento di Chimica; Sapienza Università di Roma, P.le A. Moro 5; 00185 Roma Italy
| | - Marta Varrone
- Istituto di Metodologie Chimiche del CNR - Sede di Roma, Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica; Sapienza Università di Roma, P.le A. Moro 5; 00185 Roma Italy
| | - Enrico Rossi
- Istituto di Metodologie Chimiche del CNR - Sede di Roma, Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica; Sapienza Università di Roma, P.le A. Moro 5; 00185 Roma Italy
| | - Mauro Bassetti
- Istituto di Metodologie Chimiche del CNR - Sede di Roma, Sezione Meccanismi di Reazione, c/o Dipartimento di Chimica; Sapienza Università di Roma, P.le A. Moro 5; 00185 Roma Italy
| | - Andrea D'Annibale
- Dipartimento di Chimica; Sapienza Università di Roma, P.le A. Moro 5; 00185 Roma Italy
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21
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Deb M, Kumar D, Singh J, Elias AJ. Unprecedented Formation of π-Copper Complexes during Sonogashira Coupling: Synthesis of a Unique, Recyclable, Ethynyl Ferrocene Derived Cu(I) Specific Ligand. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00069] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mayukh Deb
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Dheeraj Kumar
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Jatinder Singh
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
| | - Anil J. Elias
- Department of Chemistry, Indian Institute of Technology, Delhi, Hauz Khas, New Delhi 110016, India
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22
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Hoffmann V, Jenny N, Häussinger D, Neuburger M, Mayor M. Rotationally Restricted 1,1′-Bis(phenylethynyl)ferrocene Subunits in Macrocycles. European J Org Chem 2016. [DOI: 10.1002/ejoc.201600158] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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23
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Roemer M, Donnadieu B, Nijhuis CA. Functionalized 1′-Substituted Iodoferrocenes and Their Pd-Catalyzed Heck Cross-Coupling Reactions. Eur J Inorg Chem 2016. [DOI: 10.1002/ejic.201501451] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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24
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Mahmood Q, Yue E, Zhang W, Solan GA, Liang T, Sun WH. Bisimino-functionalized dibenzo[a,c]acridines as highly conjugated pincer frameworks for palladium(ii): synthesis, characterization and catalytic performance in Heck coupling. Org Chem Front 2016. [DOI: 10.1039/c6qo00469e] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The NNC-Pd pincer complexes, systematically derived from phenanthrene-9,10-dione, are able to efficiently mediate the coupling of haloarenes with vinyl-containing substrates (up to TON = 174 000) with a broad substrate scope.
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Affiliation(s)
- Qaiser Mahmood
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Erlin Yue
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wenjuan Zhang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Gregory A. Solan
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Tongling Liang
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
| | - Wen-Hua Sun
- Key Laboratory of Engineering Plastics and Beijing National Laboratory for Molecular Sciences
- Institute of Chemistry
- Chinese Academy of Sciences
- Beijing 100190
- China
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25
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26
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Roemer M, Nijhuis CA. Syntheses and purification of the versatile synthons iodoferrocene and 1,1'-diiodoferrocene. Dalton Trans 2015; 43:11815-8. [PMID: 24999911 DOI: 10.1039/c4dt01787k] [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]
Abstract
This paper describes the improved synthesis and purification of iodoferrocene (FcI) and 1,1'-diiodoferrocene (FcI2). FcI and FcI2 were prepared by mono- and dilithiation of ferrocene followed by conversion into iodoferrocenes by reaction with iodine. Purification was accomplished by a simple sublimation/distillation procedure, affording FcI and FcI2 in high yields (74 and 72%) and high purity (>99.9%). We determined the molecular structures of FcI and FcI2 by X-ray single crystal diffraction.
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Affiliation(s)
- Max Roemer
- Department of Chemistry, National University of Singapore, 3 Science Drive 3, Singapore 117543, Singapore.
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27
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Scottwell SØ, Elliott ABS, Shaffer KJ, Nafady A, McAdam CJ, Gordon KC, Crowley JD. Chemically and electrochemically induced expansion and contraction of a ferrocene rotor. Chem Commun (Camb) 2015; 51:8161-4. [DOI: 10.1039/c5cc01973g] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A 2,2′-bipyridine-appended ferrocene rotor can be switched, upon treatment with [Cu(CH3CN)4](PF6) and 6,6′-dimesityl-2,2′-bipyridine, from the stacked (syn) conformation to the unstacked (anti) conformation. The switching was completely reversible and could be triggered either chemically, or electrochemically.
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Affiliation(s)
| | - Anastasia B. S. Elliott
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
| | - Karl J. Shaffer
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
| | - Ayman Nafady
- Department of Chemistry
- College of Science
- King Saud University
- Riyadh 11451
- Saudi Arabia
| | - C. John McAdam
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
| | - Keith C. Gordon
- Department of Chemistry
- University of Otago
- Dunedin
- New Zealand
- MacDiarmid Institute for Advanced Materials and Nanotechnology
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28
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Inkpen MS, White AJP, Albrecht T, Long NJ. Avoiding problem reactions at the ferrocenyl-alkyne motif: a convenient synthesis of model, redox-active complexes for molecular electronics. Dalton Trans 2014; 43:15287-90. [DOI: 10.1039/c4dt02359e] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A much improved route to 1,1′-bis(arylethynyl)ferrocenes comprising accessible thiolates on the aryl ring is reported. Unanticipated reactions between AcCl, TBAF–BBr3 and ferrocenyl-alkynes are also discussed, offering a rationale for previous synthetic difficulties.
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Affiliation(s)
| | | | - Tim Albrecht
- Department of Chemistry
- Imperial College London
- London SW7 2AZ, UK
| | - Nicholas J. Long
- Department of Chemistry
- Imperial College London
- London SW7 2AZ, UK
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29
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Inkpen MS, Albrecht T, Long NJ. Branched Redox-Active Complexes for the Study of Novel Charge Transport Processes. Organometallics 2013. [DOI: 10.1021/om400595n] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Michael S. Inkpen
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Tim Albrecht
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
| | - Nicholas J. Long
- Department of Chemistry, Imperial College London, London SW7 2AZ, U.K
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