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Carrillo-Hermosilla F, Fernández-Galán R, Ramos A, Elorriaga D. Guanidinates as Alternative Ligands for Organometallic Complexes. Molecules 2022; 27:5962. [PMID: 36144698 PMCID: PMC9501388 DOI: 10.3390/molecules27185962] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 11/30/2022] Open
Abstract
For decades, ligands such as phosphanes or cyclopentadienyl ring derivatives have dominated Coordination and Organometallic Chemistry. At the same time, alternative compounds have emerged that could compete either for a more practical and accessible synthesis or for greater control of steric and electronic properties. Guanidines, nitrogen-rich compounds, appear as one such potential alternatives as ligands or proligands. In addition to occurring in a plethora of natural compounds, and thus in compounds of pharmacological use, guanidines allow a wide variety of coordination modes to different metal centers along the periodic table, with their monoanionic chelate derivatives being the most common. In this review, we focused on the organometallic chemistry of guanidinato compounds, discussing selected examples of coordination modes, reactivity and uses in catalysis or materials science. We believe that these amazing ligands offer a new promise in Organometallic Chemistry.
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Affiliation(s)
- Fernando Carrillo-Hermosilla
- Departamento de Química Inorgánica, Orgánica y Bioquímica—Centro de Innovación en Química Avanzada (ORFEO−CINQA), Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain
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3
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Al-Harbi A, Hammond MJ, Parkin G. Organometallic Zirconium Compounds in an Oxygen-Rich Coordination Environment: Synthesis and Structural Characterization of Tris(oxoimidazolyl)hydroboratozirconium Compounds. Inorg Chem 2018; 57:1426-1437. [PMID: 29314851 DOI: 10.1021/acs.inorgchem.7b02832] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A series of tris(oxoimidazolyl)hydroborato ligands, which serve as L2X [O3] donors, have been employed to obtain organometallic zirconium compounds in an uncommon oxygen-rich coordination environment. For example, Cp[ToMeBenz]ZrCl2 has been synthesized via the reaction of [ToMeBenz]Na with CpZrCl3 and bears a structural resemblance to the bent metallocene dichloride derivative Cp2ZrCl2. In addition, the half-sandwich counterparts [ToMeBenz]ZrCl3 and [ToBut]ZrCl3 have been obtained by metathesis of ZrCl4 with [ToMeBenz]Na and [ToBut]Na, respectively. The structurally related zirconium benzyl compounds [ToRBenz]Zr(CH2Ph)3 (R = Me, But, 1-Ad) have also been synthesized via the reactions of [ToRBenz]Tl with Zr(CH2Ph)4, and X-ray diffraction studies demonstrate that the benzyl ligands in these compounds are conformationally flexible and exhibit a large range of Zr-CH2-Ph bond angles (94.7-131.7°). Protolytic cleavage of one of the benzyl ligands of [ToRBenz]Zr(CH2Ph)3 (R = But, 1-Ad) may be achieved by treatment with [PhNHMe2][B(C6F5)4] to generate {[ToRBenz]Zr(CH2Ph)2}[B(C6F5)4], which are catalysts for the polymerization of ethylene. The molecular structure of the ether adduct, {[ToButBenz]Zr(CH2Ph)2(OEt2)}[B(C6F5)4], has been determined by X-ray diffraction. In addition to the use of tris(oxoimidazolyl)hydroborato ligands, bis(oxoimidazolyl)hydroborato ligands have also been used to obtain zirconium benzyl compounds in oxygen-rich environments, namely, [BoMeBenz]2Zr(CH2Ph)2 and [BoAdBenz]2Zr(CH2Ph)2.
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Affiliation(s)
- Ahmed Al-Harbi
- Department of Chemistry, Columbia University , New York, New York 10027, United States
| | - Matthew J Hammond
- Department of Chemistry, Columbia University , New York, New York 10027, United States
| | - Gerard Parkin
- Department of Chemistry, Columbia University , New York, New York 10027, United States
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4
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Straub MD, Hohloch S, Minasian SG, Arnold J. Homoleptic U(iii) and U(iv) amidate complexes. Dalton Trans 2018; 47:1772-1776. [DOI: 10.1039/c7dt04813k] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Homoleptic U(iv) and U(iii) amidate complexes have been isolated and characterized; these species undergo an unusual and reversible change in coordination number upon reduction/oxidation.
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Affiliation(s)
- M. D. Straub
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - S. Hohloch
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
| | - S. G. Minasian
- Chemical Sciences Division
- Lawrence Berkeley National Laboratory
- Berkeley
- USA
| | - J. Arnold
- Department of Chemistry
- University of California
- Berkeley
- USA
- Chemical Sciences Division
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Settineri NS, Garner ME, Arnold J. A Thorium Chalcogenolate Series Generated by Atom Insertion into Thorium–Carbon Bonds. J Am Chem Soc 2017; 139:6261-6269. [DOI: 10.1021/jacs.7b02356] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Nicholas S. Settineri
- Chemical Science Division,
Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - Mary E. Garner
- Chemical Science Division,
Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
| | - John Arnold
- Chemical Science Division,
Lawrence Berkeley National Laboratory and Department of Chemistry, University of California, Berkeley, California 94720, United States
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Klet RC, Theriault CN, Klosin J, Labinger JA, Bercaw JE. Investigations into Asymmetric Post-Metallocene Group 4 Complexes for the Synthesis of Highly Regioirregular Polypropylene. Macromolecules 2014. [DOI: 10.1021/ma500453t] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rachel C. Klet
- Arnold
and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - Curt N. Theriault
- Corporate R&D, The Dow Chemical Company, 1776 Building, Midland, Michigan 48674, United States
| | - Jerzy Klosin
- Corporate R&D, The Dow Chemical Company, 1776 Building, Midland, Michigan 48674, United States
| | - Jay A. Labinger
- Arnold
and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, United States
| | - John E. Bercaw
- Arnold
and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125, United States
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Trost BM, Czabaniuk LC. Struktur und Reaktivität später Übergangsmetall- η3-Benzylkomplexe. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201305972] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Trost BM, Czabaniuk LC. Structure and Reactivity of Late Transition Metal η3-Benzyl Complexes. Angew Chem Int Ed Engl 2014; 53:2826-51. [DOI: 10.1002/anie.201305972] [Citation(s) in RCA: 109] [Impact Index Per Article: 10.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2013] [Revised: 09/17/2013] [Indexed: 01/02/2023]
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Sharma B, Callaway TM, Lamb AC, Steren CA, Chen SJ, Xue ZL. Reactions of Group 4 Amide Guanidinates with Dioxygen or Water. Studies of the Formation of Oxo Products. Inorg Chem 2013; 52:11409-21. [DOI: 10.1021/ic4016965] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Affiliation(s)
- Bhavna Sharma
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Tabitha M. Callaway
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Adam C. Lamb
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Carlos A. Steren
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Shu-Jian Chen
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Zi-Ling Xue
- Department
of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
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Dagorne S, Bellemin-Laponnaz S, Romain C. Neutral and Cationic N-Heterocyclic Carbene Zirconium and Hafnium Benzyl Complexes: Highly Regioselective Oligomerization of 1-Hexene with a Preference for Trimer Formation. Organometallics 2013. [DOI: 10.1021/om400182d] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Samuel Dagorne
- Institut de Chimie de Strasbourg, CNRS UMR 7177, Université de Strasbourg, 1 rue Blaise Pascal,
67000 Strasbourg, France
| | - Stéphane Bellemin-Laponnaz
- Institut de Physique et Chimie
des Matériaux de Strasbourg, CNRS UMR 7504, Université de Strasbourg, 23 rue du Loess, BP
43, F-67034 Strasbourg Cedex 2, France
| | - Charles Romain
- Institut de Chimie de Strasbourg, CNRS UMR 7177, Université de Strasbourg, 1 rue Blaise Pascal,
67000 Strasbourg, France
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Danopoulos AA, Monakhov KY, Robert V, Braunstein P, Pattacini R, Conde-Guadaño S, Hanton M, Tooze RP. Angular Distortions at Benzylic Carbons Due to Intramolecular Polarization-Induced Metal–Arene Interactions: A Case Study with Open-Shell Chromium(II) NHC Complexes. Organometallics 2013. [DOI: 10.1021/om3012568] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Andreas A. Danopoulos
- Laboratoire
de Chimie de Coordination,
Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, 67081 Strasbourg,
France
| | - Kirill Yu. Monakhov
- Laboratoire
de Chimie de Coordination,
Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, 67081 Strasbourg,
France
| | - Vincent Robert
- Laboratoire de Chimie
Quantique,
Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 1 Rue Blaise Pascal, 67008 Strasbourg,
France
| | - Pierre Braunstein
- Laboratoire
de Chimie de Coordination,
Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, 67081 Strasbourg,
France
| | - Roberto Pattacini
- Laboratoire
de Chimie de Coordination,
Institut de Chimie (UMR 7177 CNRS), Université de Strasbourg, 4 Rue Blaise Pascal, 67081 Strasbourg,
France
| | - Susana Conde-Guadaño
- Sasol Technology UK Ltd, Purdie Building, North Haugh, St Andrews, Fife,
U.K. KY16 9ST
| | - Martin Hanton
- Sasol Technology UK Ltd, Purdie Building, North Haugh, St Andrews, Fife,
U.K. KY16 9ST
| | - Robert P. Tooze
- Sasol Technology UK Ltd, Purdie Building, North Haugh, St Andrews, Fife,
U.K. KY16 9ST
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Elorriaga D, Carrillo-Hermosilla F, Antiñolo A, Suárez FJ, López-Solera I, Fernández-Galán R, Villaseñor E. Asymmetric niobium guanidinates as intermediates in the catalytic guanylation of amines. Dalton Trans 2013; 42:8223-30. [DOI: 10.1039/c3dt50477h] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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13
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Fernández-Galán R, Antiñolo A, Carrillo-Hermosilla F, López-Solera I, Otero A, Serrano-Laguna A, Villaseñor E. Migratory Insertion Reactions in Asymmetrical Guanidinate-Supported Zirconium Complexes. Organometallics 2012. [DOI: 10.1021/om300942p] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Rafael Fernández-Galán
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias y Tecnologías Quı́micas, Universidad de Castilla-La Mancha, Campus Universitario
de Ciudad Real, 13071-Ciudad Real, Spain
| | - Antonio Antiñolo
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias y Tecnologías Quı́micas, Universidad de Castilla-La Mancha, Campus Universitario
de Ciudad Real, 13071-Ciudad Real, Spain
| | - Fernando Carrillo-Hermosilla
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias y Tecnologías Quı́micas, Universidad de Castilla-La Mancha, Campus Universitario
de Ciudad Real, 13071-Ciudad Real, Spain
| | - Isabel López-Solera
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias y Tecnologías Quı́micas, Universidad de Castilla-La Mancha, Campus Universitario
de Ciudad Real, 13071-Ciudad Real, Spain
| | - Antonio Otero
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias y Tecnologías Quı́micas, Universidad de Castilla-La Mancha, Campus Universitario
de Ciudad Real, 13071-Ciudad Real, Spain
| | - Amparo Serrano-Laguna
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias y Tecnologías Quı́micas, Universidad de Castilla-La Mancha, Campus Universitario
de Ciudad Real, 13071-Ciudad Real, Spain
| | - Elena Villaseñor
- Departamento de Quı́mica
Inorgánica, Orgánica y Bioquı́mica, Facultad de Ciencias y Tecnologías Quı́micas, Universidad de Castilla-La Mancha, Campus Universitario
de Ciudad Real, 13071-Ciudad Real, Spain
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Rong Y, Al-Harbi A, Parkin G. Highly Variable Zr–CH2–Ph Bond Angles in Tetrabenzylzirconium: Analysis of Benzyl Ligand Coordination Modes. Organometallics 2012. [DOI: 10.1021/om300820b] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Yi Rong
- Department
of Chemistry, Columbia University, New
York, New York 10027, United States
| | - Ahmed Al-Harbi
- Department
of Chemistry, Columbia University, New
York, New York 10027, United States
| | - Gerard Parkin
- Department
of Chemistry, Columbia University, New
York, New York 10027, United States
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15
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Chen SJ, Dougan BA, Chen XT, Xue ZL. Preparation of Zirconium Guanidinate Complexes from the Direct Insertion of a Carbodiimine and Aminolysis Using a Guanidine. Comparison of the Reactions. Organometallics 2012. [DOI: 10.1021/om300097a] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Shu-Jian Chen
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Brenda A. Dougan
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Xue-Tai Chen
- State Key Laboratory of Coordination
Chemistry, School of Chemistry
and Chemical Engineering, Nanjing University, Nanjing 210093, People's Republic of China
| | - Zi-Ling Xue
- Department of Chemistry, The University of Tennessee, Knoxville, Tennessee 37996, United States
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16
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Elorriaga D, Carrillo-Hermosilla F, Antiñolo A, López-Solera I, Menot B, Fernández-Galán R, Villaseñor E, Otero A. New Alkylimido Niobium Complexes Supported by Guanidinate Ligands: Synthesis, Characterization, and Migratory Insertion Reactions. Organometallics 2012. [DOI: 10.1021/om201192w] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- David Elorriaga
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
| | - Fernando Carrillo-Hermosilla
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
| | - Antonio Antiñolo
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
| | - Isabel López-Solera
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
| | - Bérengère Menot
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
| | - Rafael Fernández-Galán
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
| | - Elena Villaseñor
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
| | - Antonio Otero
- Departamento de
Química Inorgánica, Orgánica y Bioquímica, Facultad de Ciencias Químicas, Universidad de Castilla-La Mancha, Campus Universitario de Ciudad
Real, 13071-Ciudad Real, Spain
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Hafeez M, Kretschmer WP, Kempe R. Hafnium Trialkyls Stabilized by Bulky, Electron-Rich Aminopyridinates. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201100475] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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18
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Minasian SG, Krinsky JL, Arnold J. Evaluating f-Element Bonding from Structure and Thermodynamics. Chemistry 2011; 17:12234-45. [DOI: 10.1002/chem.201101447] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Leitch DC, Schafer LL. Zirconium Alkyl Complexes Supported by Ureate Ligands: Synthesis, Characterization, and Precursors to Metal−Element Multiple Bonds. Organometallics 2010. [DOI: 10.1021/om100381d] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- David C. Leitch
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada, V6T 1Z1
| | - Laurel L. Schafer
- Department of Chemistry, University of British Columbia, 2036 Main Mall, Vancouver, BC, Canada, V6T 1Z1
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20
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Leitch DC, Beard JD, Thomson RK, Wright VA, Patrick BO, Schafer LL. N,O-Chelates of Group 4 Metals: Contrasting the Use of Amidates and Ureates in the Synthesis of Metal Dichlorides. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900254] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Qian C, Zhang X, Li J, Xu F, Zhang Y, Shen Q. Trisguanidinate Lanthanide Complexes: Syntheses, Structures, and Catalytic Activity for Mild Amidation of Aldehydes with Amines. Organometallics 2009. [DOI: 10.1021/om900120v] [Citation(s) in RCA: 68] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Cunwei Qian
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China
| | - Xingmin Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China
| | - Junmei Li
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China
| | - Fan Xu
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China
| | - Yong Zhang
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China
| | - Qi Shen
- Key Laboratory of Organic Synthesis of Jiangsu Province, Department of Chemistry and Chemical Engineering, Dushu Lake Campus, Suzhou University, Suzhou 215123, People’s Republic of China
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, Shanghai 200032, People’s Republic of China
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22
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Zhang J, Ma L, Han Y, Zhang FHZ, Cai R, Chen Z, Zhou X. Facile construction of the guanidine substituent or guanidinate anionic ligand through addition of the adjacent amino group to carbodiimide. Dalton Trans 2009:3298-305. [DOI: 10.1039/b813711k] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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23
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Noor A, Kretschmer WP, Glatz G, Meetsma A, Kempe R. Synthesis and Structure of Zirconium and Hafnium Polymerisation Catalysts Stabilised by Very Bulky Aminopyridinato Ligands. Eur J Inorg Chem 2008. [DOI: 10.1002/ejic.200800580] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Meppelder GJM, Beckerle K, Manivannan R, Lian B, Raabe G, Spaniol TP, Okuda J. Enantiomerically Pure Titanium Complexes Containing an [OSSO]-Type Bis(phenolate) Ligand: Synthesis, Structure, and Formation of Optically Active Oligostyrenes. Chem Asian J 2008; 3:1312-23. [DOI: 10.1002/asia.200800064] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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25
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Edelmann FT. Advances in the Coordination Chemistry of Amidinate and Guanidinate Ligands. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2008. [DOI: 10.1016/s0065-3055(08)00003-8] [Citation(s) in RCA: 364] [Impact Index Per Article: 22.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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26
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Zhang J, Cai R, Weng L, Zhou X. Synthesis and structural characterizations of organolanthanide complexes with amino-tethered guanidinate ligand (C5H5)2Ln[H2N(CH2)3NC(NHiPr) NiPr)] (Ln=Yb, Y, Er, Dy). INORG CHEM COMMUN 2007. [DOI: 10.1016/j.inoche.2007.07.013] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chomitz WA, Minasian SG, Sutton AD, Arnold J. Synthesis and Reactivity of Metal Complexes Supported by the Tetradentate Monoanionic Ligand Bis(2-picolyl)(2-hydroxy-3,5-di-tert-butylbenzyl)amide (BPPA). Inorg Chem 2007; 46:7199-209. [PMID: 17655225 DOI: 10.1021/ic700775k] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Metal-halide complexes of Ti, V, Y, Zr, Al, Ga, and U supported by the tetradentate monoanionic (TDMA) ligand bis(2-picolyl)(2-hydroxy-3,5-di-tert-butylbenzyl)amine, H(BPPA), were synthesized and spectroscopically characterized. In addition, the complexes (BPPA)TiCl2, (BPPA)VBr2, [(BPPA)YCl2]2, (BPPA)AlCl2, (BPPA)GaCl2, and (BPPA)UI3 were characterized by single-crystal X-ray crystallography. In all cases the ligand is bound kappa4 to the metal center. All structurally characterized compounds are monomeric in the solid-state with the exception of [(BPPA)YCl2]2, which exists as a dimer in the solid-state. The metal-alkyl complexes (BPPA)AlMe2 and (BPPA)Zr(CH2Ph)3 were also synthesized and characterized, and an X-ray structure of (BPPA)Zr(CH2Ph)3 was obtained. The transformation of BPPA from a monoanionic to a dianionic ligand via proton abstraction was observed and monitored by NMR spectroscopy.
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Affiliation(s)
- Wayne A Chomitz
- Department of Chemistry, University of California, Berkeley, CA 94720-1460, USA
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28
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Gott AL, Clarke AJ, Clarkson GJ, Scott P. Structure−Activity Relationships for Group 4 Biaryl Amidate Complexes in Catalytic Hydroamination/Cyclization of Aminoalkenes. Organometallics 2007. [DOI: 10.1021/om061087l] [Citation(s) in RCA: 117] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew L. Gott
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Adam J. Clarke
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Guy J. Clarkson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Peter Scott
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
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Gott AL, Coles SR, Clarke AJ, Clarkson GJ, Scott P. Chiral Alkoxide-Functionalized Guanidinates from Ring-Opening Rearrangement of Aminooxazolinate Complexes. Organometallics 2006. [DOI: 10.1021/om0607649] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew L. Gott
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Stuart R. Coles
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Adam J. Clarke
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Guy J. Clarkson
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
| | - Peter Scott
- Department of Chemistry, University of Warwick, Gibbet Hill Road, Coventry CV4 7AL, U.K
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31
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Pang XA, Yao YM, Wang JF, Sheng HT, Zhang Y, Shen Q. Synthesis and Characterization of Bis(guanidinate) Zirconium Complexes. CHINESE J CHEM 2005. [DOI: 10.1002/cjoc.200591193] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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32
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Zhang J, Zhou X, Cai R, Weng L. Reactivity of Organolanthanide and Organolithium Complexes Containing the Guanidinate Ligands toward Isocyanate or Carbodiimide: Synthesis and Crystal Structures. Inorg Chem 2005; 44:716-22. [PMID: 15679407 DOI: 10.1021/ic048683x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
The direct reactions of (C5H5)2LnCl with LiN=C(NMe2)2 proceeded at room temperature in THF under pure nitrogen to yield the lanthanocene guanidinate complexes [(C5H5)2Ln(mu-eta1:eta2-N=C(NMe2)2)]2 (Ln = Gd (1), Er (2)). Treatment of phenyl isocyanate with complexes 1 and 2 results in monoinsertion of phenyl isocyanate into the Ln-N(mu-Gua) bond to yield the corresponding insertion products [(C5H5)2Ln(mu-eta1:eta2-OC(N=C(NMe2)2)NPh)]2 (Ln = Gd (3), Er (4)), presenting the first example of unsaturated organic small molecule insertion into the metal-guanidinate ligand bond. Further investigations indicate that N,N'-diisopropylcarbodiimide does not react with complexes 1 and 2 under the same conditions; however, it readily inserts into the lithium-guanidinate ligand bond of LiN=C(NMe2)2. As a synthon of the insertion product Li[(iPrN)2C(N=C(NMe2)2)], its reaction with (C5H5)2LnCl gives the novel organolanthanide complexes containing the guanidinoacetamidinate ligand, (C5H5)2Ln[(iPrN)2C(N=C(NMe2)2)] (Ln = Yb (5), Er (6), Dy (7)). All complexes were characterized by elemental analysis and spectroscopic properties. The structures of complexes 1, 3, 5 and 7 were determined through X-ray single-crystal diffraction analysis.
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Affiliation(s)
- Jie Zhang
- Department of Chemistry, Fudan University, Shanghai 200433, People's Republic of China.
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33
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Coles M, Hitchcock P. Zinc Guanidinate Complexes and Their Application in Ring-Opening Polymerisation Catalysis. Eur J Inorg Chem 2004. [DOI: 10.1002/ejic.200400031] [Citation(s) in RCA: 123] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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34
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Liang LC, Lee WY, Yin CC. Nickel(II) Complexes Containing Bidentate Diarylamido Phosphine Ligands. Organometallics 2004. [DOI: 10.1021/om0498145] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Lan-Chang Liang
- Department of Chemistry and Center for Nanoscience & Nanotechnology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Wei-Ying Lee
- Department of Chemistry and Center for Nanoscience & Nanotechnology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Chi-Chun Yin
- Department of Chemistry and Center for Nanoscience & Nanotechnology, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
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Zhang J, Cai R, Weng L, Zhou X. Insertion of a Carbodiimide into the Ln−N σ-Bond of Organolanthanide Complexes. Isomerization and Rearrangement of Organolanthanides Containing Guanidinate Ligands. Organometallics 2004. [DOI: 10.1021/om049866u] [Citation(s) in RCA: 84] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jie Zhang
- Department of Chemistry, Molecular Catalysis and Innovative Material Laboratory, Fudan University, Shanghai 200433, People's Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People's Republic of China
| | - Ruifang Cai
- Department of Chemistry, Molecular Catalysis and Innovative Material Laboratory, Fudan University, Shanghai 200433, People's Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People's Republic of China
| | - Linhong Weng
- Department of Chemistry, Molecular Catalysis and Innovative Material Laboratory, Fudan University, Shanghai 200433, People's Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People's Republic of China
| | - Xigeng Zhou
- Department of Chemistry, Molecular Catalysis and Innovative Material Laboratory, Fudan University, Shanghai 200433, People's Republic of China, and State Key Laboratory of Organometallic Chemistry, Shanghai 200032, People's Republic of China
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36
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Hollink E, Wei P, Stephan DW. The Effects of Activators on Zirconium Phosphinimide Ethylene Polymerization Catalysts. Organometallics 2004. [DOI: 10.1021/om030631c] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Emily Hollink
- Department of Chemistry & Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Pingrong Wei
- Department of Chemistry & Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
| | - Douglas W. Stephan
- Department of Chemistry & Biochemistry, University of Windsor, Windsor, Ontario, Canada N9B 3P4
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37
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Ozarowski A, Lee HM, Balch AL. Crystal environments probed by EPR spectroscopy. Variations in the EPR spectra of Co(II)(octaethylporphyrin) doped in crystalline diamagnetic hosts and a reassessment of the electronic structure of four-coordinate cobalt(II). J Am Chem Soc 2003; 125:12606-14. [PMID: 14531705 DOI: 10.1021/ja030221f] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The powder and single-crystal EPR spectra of Co(II)(OEP) (OEP is the dianion of octaethylporphyrin) doped into a range of diamagnetic crystals including simple four-coordinate hosts, H(2)(OEP), the triclinic B form of Ni(II)(OEP), the tetragonal form of Ni(II)(OEP) and Zn(II)(OEP); five-coordinate hosts, micro-dioxane)[Zn(II)(OEP)](2) and (py)Zn(II)(OEP); six-coordinate hosts, (py)(2)Zn(II)(OEP) and (py)(2)Mg(II)(OEP); and hosts containing fullerenes, C(60).2Zn(II)(OEP).CHCl(3), C(70).Ni(II)(OEP).C(6)H(6).CHCl(3), and C(60).Ni(II)(OEP).2C(6)H(6) have been obtained and analyzed. Spectra were simulated using a program that employed the exact diagonalization of the 16 x 16 complex spin Hamiltonian matrix. The EPR spectra of these doped samples are very sensitive to the environment within each crystal with the crystallographic site symmetry determining whether axial or rhombic resonance patterns are observed. For Co(II)(OEP) doped into tetragonal Ni(II)(OEP) (which displays a very large g( perpendicular ) of 3.405 and a very small g( parallel ) of 1.544) and several other crystals containing four-coordinate metal sites, the g components could not be fit using existing theory with the assumption of the usual z(2) ground state. However, reasonable agreement of the observed EPR parameters could be obtained by assuming that the unpaired electron resides in an xy orbital in the four-coordinate complexes.
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Affiliation(s)
- Andrew Ozarowski
- Department of Chemistry, University of California, Davis, California 95616, USA
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38
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Buitrago O, Jiménez G, Cuenca T. Titanium and zirconium chloro, oxo and alkyl derivatives containing silyl-cyclopentadienyl ligands. Synthesis and characterisation. J Organomet Chem 2003. [DOI: 10.1016/s0022-328x(03)00430-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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39
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Bazinet P, Wood D, Yap GPA, Richeson DS. Synthesis and Structural Investigation of N,N‘,N‘ ‘-Trialkylguanidinato-Supported Zirconium(IV) Complexes. Inorg Chem 2003; 42:6225-9. [PMID: 14514297 DOI: 10.1021/ic034445a] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The addition of 2 equiv of N,N',N' '-triisopropylguanidine (guanH(2)) to Zr(CH(2)Ph)(4) produced the bis(guanidinato)bis(benzyl)zirconium complex [((i)PrNH)C(N(i)Pr)(2)](2)Zr(CH(2)Ph)(2) (1). The mono(guanidinato) complex [((i)PrN)(2)C(NH(i)Pr)]ZrCl(3) (2) was accessible by the reaction of 2 equiv of guanH(2) with ZrCl(4). Guanidinium hydrochloride, [C(NH(i)Pr)(3)]Cl, is a byproduct of this reaction. When crystallized from THF, complex 2 was isolated as the THF adduct [((i)PrNH)C(N(i)Pr)(2)]ZrCl(3)(THF) (2-THF). The mixed cyclopentadienyl guanidinato complex [eta(5)-1,3-(Me(3)Si)(2)C(5)H(3)][((i)PrNH)C(N(i)Pr)(2)]ZrCl(2) (3) was prepared by treatment of [1,3-(Me(3)Si)(2)C(5)H(3)]ZrCl(3) with the in situ generated lithium triisopropylguanidinate salt. The reaction of guanH(2) with [1,3-(Me(3)Si)(2)C(5)H(3)]ZrMe(3) affords the dimethyl derivative [eta(5)-1,3-(Me(3)Si)(2)C(5)H(3)][((i)PrNH)C(N(i)Pr)(2)]ZrMe(2) (4). Definitive evidence for the molecular structures of these products is provided through single-crystal X-ray characterization of 1, 2-THF, and 3, which are presented. The extent of pi delocalization within the guanidinato ligand is discussed in the context of the metrical parameters obtained from these structural studies.
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Affiliation(s)
- Patrick Bazinet
- Department of Chemistry, University of Ottawa, Ottawa, Ontario, Canada K1N 6N5
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40
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Zhang J, Cai R, Weng L, Zhou X. Insertion of carbodiimide into the LnN σ-bond of organolanthanide complexes. Synthesis and characterization of organolanthanide guanidinates (C5H5)2Ln[iPrNC(NiPr2)∴NiPr] (Ln=Yb, Dy, Gd). J Organomet Chem 2003. [DOI: 10.1016/s0022-328x(03)00147-5] [Citation(s) in RCA: 63] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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41
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Arnold J, Knapp V, Schmidt JAR, Shafir A. Reactions of N,N′,N″-trimethyl-1,4,7-triazacyclononane with butyllithium reagents. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b205792c] [Citation(s) in RCA: 60] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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43
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Thorn MG, Lee J, Fanwick PE, Rothwell IP. Synthesis, structure and molecular dynamics of η2-iminoacyl compounds [Cp(ArO)Zr(η2-ButNCCH2Ph)(CH2Ph)] and [Cp(ArO)Zr(η2-ButNCCH2Ph)2]. ACTA ACUST UNITED AC 2002. [DOI: 10.1039/b202244n] [Citation(s) in RCA: 20] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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44
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Duncan AP, Mullins SM, Arnold J, Bergman RG. Synthesis, Structural Investigation, and Reactivity of Neutral and Cationic Bis(guanidinato)zirconium(IV) Complexes. Organometallics 2001. [DOI: 10.1021/om000995u] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Andrew P. Duncan
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNDOS), University of California, and Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| | - Sarah M. Mullins
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNDOS), University of California, and Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| | - John Arnold
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNDOS), University of California, and Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
| | - Robert G. Bergman
- Department of Chemistry and Center for New Directions in Organic Synthesis (CNDOS), University of California, and Division of Chemical Sciences, Lawrence Berkeley National Laboratory, Berkeley, California 94720-1460
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