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Glöckler E, Kapp L, Wölper C, Schumacher M, Gröschel AH, Schulz S. Homoleptic and heteroleptic ketodiiminate zinc complexes for the ROP of cyclic l-lactide. RSC Adv 2023; 13:29879-29885. [PMID: 37842672 PMCID: PMC10568404 DOI: 10.1039/d3ra06529d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 10/04/2023] [Indexed: 10/17/2023] Open
Abstract
Homo- and heteroleptic ketodiiminate zinc complexes L12Zn2 (1, L1 = [Me2NC2H4NC(Me)CH]2CO), L2(ZnCp)2 (2, L2 = [Me2NC3H6NC(Me)CH]2CO, Cp = C5H5) and L2HZnCp* (3, Cp* = C5Me5) were synthesized and characterized by 1H and 13C NMR and IR spectroscopy as well as by elemental analysis and single crystal X-ray diffraction (sc-XRD, 2, 3). The catalytical activity of heteroleptic complexes 2 and 3 were tested in the ring-opening polymerization (ROP) of l-lactide. Homobimetallic complex 2 showed the highest activity and selectivity for the synthesis of cyclic polylactide (cPLLA; TOF = 17 460 h-1) at 100 °C in toluene solution, while linear polymers are formed with mononuclear complex 3.
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Affiliation(s)
- Eduard Glöckler
- Faculty of Chemistry, University of Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
| | - Leon Kapp
- Faculty of Chemistry, University of Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
| | - Christoph Wölper
- Faculty of Chemistry, University of Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
| | - Marcel Schumacher
- Faculty of Chemistry, University of Münster and Center for Soft Nanoscience (SoN) Busso-Peus-Strasse 10 48149 Münster Germany
| | - André H Gröschel
- Faculty of Chemistry, University of Münster and Center for Soft Nanoscience (SoN) Busso-Peus-Strasse 10 48149 Münster Germany
| | - Stephan Schulz
- Faculty of Chemistry, University of Duisburg-Essen Universitätsstraße 7 45141 Essen Germany
- Center for Nanointegration Duisburg-Essen (CENIDE) Carl-Benz-Straße 199 47057 Duisburg Germany
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2
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Glöckler E, Ghosh S, Wölper C, Coban D, Gröschel AH, Schulz S. Binuclear ketodiiminate magnesium complexes for the ROP of cyclic -Lactide and ε-Caprolactone. Polyhedron 2022. [DOI: 10.1016/j.poly.2022.115918] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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3
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Affiliation(s)
- Fabio Mazzotta
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
| | - Karl W. Törnroos
- Department of Chemistry, University of Bergen, Allégaten 41, 5007 Bergen, Norway
| | - Doris Kunz
- Institut für Anorganische Chemie, Eberhard Karls Universität Tübingen, Auf der Morgenstelle 18, 72076 Tübingen, Germany
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4
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Kuwabara T, Kurokawa N, Saito M. Reactions of Dilithium Dibenzopentalenides with Cr(CO) 3 (CH 3 CN) 3 : Unexpected Formation of a Cubic Tetramer of an Anionic Hydrodibenzopentalenyl Complex. Chempluschem 2017; 82:1039-1042. [PMID: 31961600 DOI: 10.1002/cplu.201700043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2017] [Revised: 03/02/2017] [Indexed: 11/06/2022]
Abstract
To explore the coordination chemistry of dibenzopentalene dianion, reactions of two dilithium dibenzopentalenides having different silyl substituents with Cr(CO)3 (CH3 CN)3 were investigated. The products were unexpected anionic complexes, [Li(Et2 O)]+ [Cr(η5 -9-hydrodibenzopentalenyl)(CO)3 ]- . The proton at the 9-position is derived from Cr(CO)3 (CH3 CN)3 , as evidenced by the use of Cr(CO)3 (CD3 CN)3 . The X-ray diffraction analysis revealed that the chromium is coordinated by an anionic five-membered ring of the pentalene skeleton, and the lithium atom is coordinated by oxygen atoms of the carbonyl groups. The complexes form a dimer or a cage-like tetramer via carbonyl-lithium interactions, depending on the bulk of the silyl groups. The cubic tetramer appears to retain its cage structure in nonpolar solvents such as benzene.
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Affiliation(s)
- Takuya Kuwabara
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama-city, Saitama, 338-8570, Japan
| | - Nobuaki Kurokawa
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama-city, Saitama, 338-8570, Japan
| | - Masaichi Saito
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, Shimo-okubo, Sakura-ku, Saitama-city, Saitama, 338-8570, Japan
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Mala’bi T, Cohen S, Pogodin S, Agranat I. Friedel–Crafts acyl rearrangements in the fluoranthene series. Struct Chem 2016. [DOI: 10.1007/s11224-016-0894-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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6
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Fetisov EO, Gloriozov IP, Kissounko DA, Nechaev MS, Kahlal S, Saillard JY, Oprunenko YF. DFT study of dihydrogen addition to molybdenum π-heteroaromatic complexes: a prerequisite step for the catalytic hydrodenitrogenation process. NEW J CHEM 2015. [DOI: 10.1039/c5nj01585e] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
The mechanism proceeds via consecutive steps of oxidative H2 addition, hydrogen metal-to-ligand transfer, accompanied by a change of metal–ligand hapticity.
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Affiliation(s)
- Evgenii O. Fetisov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- 119899 Moscow
- Russia
- Department of Chemistry and Chemical Theory Center
| | - Igor P. Gloriozov
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- 119899 Moscow
- Russia
| | | | - Mikhail S. Nechaev
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- 119899 Moscow
- Russia
- A.V. Topchiev Institute of Petrochemical Synthesis
| | - Samia Kahlal
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Universite de Rennes 1
- 35042 Rennes cedex
- France
| | - Jean-Yves Saillard
- Institut des Sciences Chimiques de Rennes
- UMR 6226 CNRS-Universite de Rennes 1
- 35042 Rennes cedex
- France
| | - Yuri F. Oprunenko
- Department of Chemistry
- M.V. Lomonosov Moscow State University
- 119899 Moscow
- Russia
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Campo-Cacharrón A, Cabaleiro-Lago EM, González-Veloso I, Rodríguez-Otero J. Interaction of Anions with Substituted Buckybowls. The Anion’s Nature and Solvent Effects. J Phys Chem A 2014; 118:6112-24. [DOI: 10.1021/jp5058463] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Alba Campo-Cacharrón
- Departamento
de Química Física, Facultade de Ciencias, Universidade de Santiago de Compostela, Campus de Lugo. Avda. Alfonso X
El Sabio s/n, 27002 Lugo, Spain
| | - Enrique M. Cabaleiro-Lago
- Departamento
de Química Física, Facultade de Ciencias, Universidade de Santiago de Compostela, Campus de Lugo. Avda. Alfonso X
El Sabio s/n, 27002 Lugo, Spain
| | - Iván González-Veloso
- Departamento
de Química Física, Centro de investigación en
Química Biolóxica e Materiais Moleculares, CIQUS, Universidade de Santiago de Compostela, Rúa Jenaro de la Fuente s/n, Santiago de Compostela 15782, Spain
| | - Jesús Rodríguez-Otero
- Departamento
de Química Física, Centro de investigación en
Química Biolóxica e Materiais Moleculares, CIQUS, Universidade de Santiago de Compostela, Rúa Jenaro de la Fuente s/n, Santiago de Compostela 15782, Spain
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8
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Campo-Cacharrón A, Cabaleiro-Lago EM, Rodríguez-Otero J. Interaction between ions and substituted buckybowls: A comprehensive computational study. J Comput Chem 2014; 35:1533-44. [DOI: 10.1002/jcc.23644] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Revised: 05/06/2014] [Accepted: 05/12/2014] [Indexed: 12/29/2022]
Affiliation(s)
- Alba Campo-Cacharrón
- Departamento de Química Física, Facultade de Ciencias; Universidade de Santiago de Compostela, Campus de Lugo; Avda. Alfonso X El Sabio s/n 27002 Lugo Galicia Spain
| | - Enrique M. Cabaleiro-Lago
- Departamento de Química Física, Facultade de Ciencias; Universidade de Santiago de Compostela, Campus de Lugo; Avda. Alfonso X El Sabio s/n 27002 Lugo Galicia Spain
| | - Jesús Rodríguez-Otero
- Departamento de Química Física, Centro Singular de Investigación en Química Biolóxica e Materiais Moleculares (CIQUS); Universidade de Santiago de Compostela, Rúa Jenaro de la Fuente, s/n; Santiago de Compostela 15782 Spain
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Kalinina I, Bekyarova E, Sarkar S, Wang F, Itkis ME, Tian X, Niyogi S, Jha N, Haddon RC. Hexahapto-Metal Complexes of Single-Walled Carbon Nanotubes. MACROMOL CHEM PHYS 2012. [DOI: 10.1002/macp.201100661] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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10
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Tsipis AC. Binding of cerium monoxide to annulenes and buckybowls. Phys Chem Chem Phys 2012; 14:14917-22. [DOI: 10.1039/c2cp41457k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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11
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Spisak SN, Zabula AV, Filatov AS, Rogachev AY, Petrukhina MA. Selective Endo and Exo Binding of Alkali Metals to Corannulene. Angew Chem Int Ed Engl 2011. [DOI: 10.1002/ange.201103028] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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12
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Selective Endo and Exo Binding of Alkali Metals to Corannulene. Angew Chem Int Ed Engl 2011; 50:8090-4. [DOI: 10.1002/anie.201103028] [Citation(s) in RCA: 86] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2011] [Indexed: 11/07/2022]
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13
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Edwards PG, Newman PD, Stasch A. Coordination chemistry of an asymmetric P,N,O tridentate ligand containing primary phosphine, amine and alcohol donors. J Organomet Chem 2011. [DOI: 10.1016/j.jorganchem.2011.01.031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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14
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Sato H, Kikumori C, Sakaki S. Solvation structure of coronene–transition metal complex: a RISM-SCF study. Phys Chem Chem Phys 2011; 13:309-13. [DOI: 10.1039/c0cp01464h] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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15
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Veronese AC, Durini E, Bertolasi V, Basato M, Tubaro C. Metal catalysed reactions of β,β′-tricarbonyl derivatives with isocyanates. Tetrahedron 2010. [DOI: 10.1016/j.tet.2010.07.070] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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16
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Filatov AS, Petrukhina MA. Probing the binding sites and coordination limits of buckybowls in a solvent-free environment: Experimental and theoretical assessment. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2010.05.004] [Citation(s) in RCA: 116] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
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17
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Tallis HA, Newman PD, Edwards PG, Ooi L, Stasch A. 1-trimethylsilylphosphirane as a ligand and as a stable masked reagent for phosphirane. Dalton Trans 2008:47-53. [PMID: 18399227 DOI: 10.1039/b715327a] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
1-Trimethylsilylphosphirane, C2H4PSiMe3, has been prepared on a multi gram scale from P(SiMe3)3 via CICH2CH2P(SiMe3)2. C2H4PSiMe3 is readily susceptible to protonolysis forming the thermally unstable parent phosphirane, C2H4PH, in good yields. Reaction of C2H4PSiMe3 with fac-M(CO)3(CH3CN)3 (M = Cr, Mo) or [Fe(eta5-C5H5)(eta6-C6H6)](PF6) give rise tofac-M(CO)3(C2H4PSiMe3)3 and [Fe(eta5-C5H5)(C2H4PSiMe3)3](PF6) respectively. Protonolysis of the free or coordinated 1-trimethylsilylphosphirane readily causes P-Si cleavage to give rise to the parent C2H4PH or the respective complexes,fac-M(CO)3(C2H4PH)3 andfac-[Fe(eta5-C5H5)(C2H4PH)3](PF6) in situ. All new complexes are characterised by analytical and spectroscopic methods and the X-ray crystal structures of fac-Cr(CO)3(C2H4PSiMe3)3 and fac-Mo(CO)3(C2H4PH)3 have also been determined.
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Affiliation(s)
- Huw A Tallis
- School of Chemistry, Cardiff University, Cardiff, UK
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18
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Jiménez-Halla JOC, Robles J, Solà M. Coordination and Haptotropic Migration of Cr(CO)3 in Polycyclic Aromatic Hydrocarbons: The Effect of the Size and the Curvature of the Substrate. J Phys Chem A 2008; 112:1202-13. [DOI: 10.1021/jp077553h] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- J. Oscar C. Jiménez-Halla
- Institut de Química Computacional and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain, and Facultad de Química, Universidad de Guanajuato, Noria Alta s/n 36050 Guanajuato, Gto. Mexico
| | - Juvencio Robles
- Institut de Química Computacional and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain, and Facultad de Química, Universidad de Guanajuato, Noria Alta s/n 36050 Guanajuato, Gto. Mexico
| | - Miquel Solà
- Institut de Química Computacional and Departament de Química, Universitat de Girona, Campus de Montilivi, 17071 Girona, Catalonia, Spain, and Facultad de Química, Universidad de Guanajuato, Noria Alta s/n 36050 Guanajuato, Gto. Mexico
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19
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Zhu B, Ellern A, Sygula A, Sygula R, Angelici RJ. η6-Coordination of the Curved Carbon Surface of Corannulene (C20H10) to (η6-arene)M2+ (M = Ru, Os). Organometallics 2007. [DOI: 10.1021/om0610795] [Citation(s) in RCA: 48] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Bolin Zhu
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Arkady Ellern
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Andrzej Sygula
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Renata Sygula
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Robert J. Angelici
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
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20
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Brownie JH, Baird MC, Schmider H. New Complexes of Methyldiphenylphosphonium Cyclopentadienylide, Representative of a Class of Ligands Heretofore Much Neglected. Organometallics 2007. [DOI: 10.1021/om070018j] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John H. Brownie
- Department of Chemistry, Queen's University, Kingston, Canada K7L 3N6
| | - Michael C. Baird
- Department of Chemistry, Queen's University, Kingston, Canada K7L 3N6
| | - Hartmut Schmider
- The High Performance Computing Virtual Laboratory, Queen's University, Kingston, Canada K7L 3N6
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21
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Sevenard D, Kazakova O, Chizhov D, Yachevskii D, Lork E, Poveleit J, Charushin V, Röschenthaler GV. Halogenation of Fluorinated 1,3,5-Triketones. Helv Chim Acta 2007. [DOI: 10.1002/hlca.200790043] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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22
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Wu YT, Siegel JS. Aromatic Molecular-Bowl Hydrocarbons: Synthetic Derivatives, Their Structures, and Physical Properties. Chem Rev 2006; 106:4843-67. [PMID: 17165677 DOI: 10.1021/cr050554q] [Citation(s) in RCA: 643] [Impact Index Per Article: 35.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Yao-Ting Wu
- Department of Chemistry, National Cheng-Kung University, No. 1 Ta-Hsueh Road, Tainan, Taiwan
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23
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Siegel JS, Baldridge KK, Linden A, Dorta R. d8Rhodium and Iridium Complexes of Corannulene. J Am Chem Soc 2006; 128:10644-5. [PMID: 16910635 DOI: 10.1021/ja062110x] [Citation(s) in RCA: 64] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
[(COE)2M]+ fragments (M = Rh, Ir; COE = cyclooctene) react with corannulene to give eta6-bound complexes [(COE)2Rh(eta6-C20H10)]PF6 and [(COE)2Ir(eta6-C20H10)]PF6. Both compounds were characterized by X-ray diffraction studies, and binding in the solid state is compared with that of their aromatic analogues [(COE)2M(eta6-arene)]PF6 (aryl = benzene and phenanthrene). Solution NMR studies show that the [(COE)2Rh]+ fragment walks over the curved aromatic surface of corannulene, whereas the Ir analogue is not fluxional. Experimental as well as computational studies suggest that inter-ring movement of the Rh complex follows a hub migration mechanism. Initial reactivity studies indicate that the [(COE)2M]+ fragments can undergo chemical transformations, such as transfer dehydrogenation and substitution reactions, while still bound to corannulene.
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Affiliation(s)
- Jay S Siegel
- Institute of Organic Chemistry, University of Zurich, Winterthurerstrasse 190, CH-8057 Zurich, Switzerland.
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24
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Sevenard DV, Kazakova O, Chizhov DL, Röschenthaler GV. Synthesis of 1,1,1,7,7,7-hexafluoroheptane-2,4,6-trione, the simplest fluorinated 1,3,5-triketone. J Fluor Chem 2006. [DOI: 10.1016/j.jfluchem.2006.03.018] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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25
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26
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Kim D, Petersen JL, Wang KK. Synthesis of Bowl-Shaped Polycyclic Aromatic Hydrocarbons via Palladium-Catalyzed Intramolecular Arylation Reactions. Org Lett 2006; 8:2313-6. [PMID: 16706514 DOI: 10.1021/ol0605676] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
[reaction: see text] Treatment of the benzannulated enediyne 11 with potassium tert-butoxide in refluxing toluene for 12 h produced 15 via a cascade sequence of cyclization reactions. Two subsequent palladium-catalyzed intramolecular arylation reactions then afforded the bowl-shaped polycyclic aromatic hydrocarbon 16. The X-ray structures of 16 and two closely related molecules show the presence of significant curvatures.
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Affiliation(s)
- Daehwan Kim
- C. Eugene Bennett Department of Chemistry, West Virginia University, Morgantown, 26506-6045, USA
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27
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Talyzin AV, Tsybin YO, Purcell JM, Schaub TM, Shulga YM, Noréus D, Sato T, Dzwilewski A, Sundqvist B, Marshall AG. Reaction of Hydrogen Gas with C60 at Elevated Pressure and Temperature: Hydrogenation and Cage Fragmentation. J Phys Chem A 2006; 110:8528-34. [PMID: 16821837 DOI: 10.1021/jp0557971] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Products of the reaction of C(60) with H(2) gas have been monitored by high-resolution atmospheric pressure photoionization Fourier transform ion cyclotron resonance mass spectrometry (APPI FT-ICR MS), X-ray diffraction, and IR spectroscopy as a function of hydrogenation period. Samples were synthesized at 673 K and 120 bar hydrogen pressure for hydrogenation periods between 300 and 5000 min, resulting in the formation of hydrofullerene mixtures with hydrogen content ranging from 1.6 to 5.3 wt %. Highly reduced C(60)H(x) (x > 36-40) and products of their fragmentation were identified in these samples by APPI FT-ICR MS. A sharp change in structure was observed for samples with at least 5.0 wt % of hydrogen. Low-mass (300-500 Da) hydrogenation products not observed by prior field desorption (FD) FT-ICR MS were detected by APPI FT-ICR MS and their elemental compositions obtained for the first time. Synthetic and analytical fragmentation pathways are discussed.
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28
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Vecchi PA, Alvarez CM, Ellern A, Angelici RJ, Sygula A, Sygula R, Rabideau PW. Flattening of a Curved-Surface Buckybowl (Corannulene) by η6 Coordination to {Cp*Ru}+. Organometallics 2005. [DOI: 10.1021/om0505458] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Paul A. Vecchi
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Celedonio M. Alvarez
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Arkady Ellern
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Robert J. Angelici
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Andrzej Sygula
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Renata Sygula
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
| | - Peter W. Rabideau
- Ames Laboratory and Department of Chemistry, Iowa State University, Ames, Iowa 50011-3111, and Department of Chemistry, Mississippi State University, Mississippi State, Mississippi 39762
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