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Frerichs N, Lukas L, Schmidtmann M, Beckhaus R. Tris(dicyclohexylamido) Group 4 Metal Allyl and Phenylacetylide Complexes – Synthesis and Characterization. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Nils Frerichs
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Lenard Lukas
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Marc Schmidtmann
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
| | - Rüdiger Beckhaus
- Institut für Chemie Fakultät für Mathematik und Naturwissenschaften Carl von Ossietzky Universität Oldenburg Postfach 2503 26111 Oldenburg Germany
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2
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Grant LN, Mindiola DJ. The Rise of Phosphaethynolate Chemistry in Early Transition Metals, Actinides, and Rare‐Earth Complexes. Chemistry 2019; 25:16171-16178. [DOI: 10.1002/chem.201902871] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Lauren N. Grant
- Department of Chemistry University of Pennsylvania Philadelphia PA 19104 USA
| | - Daniel J. Mindiola
- Department of Chemistry University of Pennsylvania Philadelphia PA 19104 USA
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3
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Ji P, Feng X, Oliveres P, Li Z, Murakami A, Wang C, Lin W. Strongly Lewis Acidic Metal–Organic Frameworks for Continuous Flow Catalysis. J Am Chem Soc 2019; 141:14878-14888. [DOI: 10.1021/jacs.9b07891] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- Pengfei Ji
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Xuanyu Feng
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Pau Oliveres
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Zhe Li
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, China
| | - Akiko Murakami
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
| | - Cheng Wang
- College of Chemistry and Chemical Engineering, iCHEM, State Key Laboratory of Physical Chemistry of Solid Surface, Xiamen University, Xiamen 361005, China
| | - Wenbin Lin
- Department of Chemistry, The University of Chicago, 929 East 57th Street, Chicago, Illinois 60637, United States
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4
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Sietzen M, Batke S, Antoni PW, Wadepohl H, Ballmann J. Benzylene-linked [PNP] scaffolds and their cyclometalated zirconium and hafnium complexes. Dalton Trans 2017; 46:5816-5834. [PMID: 28401977 DOI: 10.1039/c7dt00413c] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The benzylene-linked [PNP] scaffolds HN(CH2-o-C6H4PPh2)2 ([A]H) and HN(C6H4-o-CH2PPh2)2 ([B]H) have been used for the synthesis of zirconium and hafnium complexes. For both ligands, the dimethylamides [A]M(NMe2)3 ([A]1-M) and [B]M(NMe2)3 ([B]1-M) were prepared and converted to the iodides [A]MI3 ([A]2-M) and [B]MI3 ([B]2-M) (M = Zr, Hf). Starting from these iodides, the corresponding benzyl derivatives [A]MBn3 ([A]3-M) and [B]MBn3 ([B]3-M) (M = Zr, Hf) were obtained via reaction with Bn2Mg(OEt2)2. For zirconium, the benzylic ligand positions in [A]3-Zr and [B]3-Zr were found to cyclometalate readily, which led to the corresponding κ4-[PCNP]ZrBn2 complexes [A]4-Zr and [B]4-Zr. As these complexes failed to hydrogenate cleanly, cyclometalated derivatives with only one alkyl substituent were targeted and the mixed benzyl chlorides κ4-[PCNP]MBnCl ([B]5-M, M = Zr, Hf) were obtained in the case of ligand [B]. Upon hydrogenation of [B]5-Zr, the η6-tolyl complex [B]Zr(η6-C7H8)Cl ([B]6-Zr) was generated cleanly, but the corresponding hafnium complex [B]5-Hf was found to decompose unselectively in the presence of H2. Using a closely related carbazole-based [PNP] ligand, Gade and co-workers have shown recently that zirconium η6-arene complexes similar to [B]6-Zr may serve as zirconium(ii) synthons, namely when reacted with 2,6-Dipp-NC (L) or pyridine (py). Both these substrates were shown to react cleanly with [B]6-Zr, which led to the formation of the bis-isocyanide complex [B]ZrCl(L)2 ([B]7-Zr) and the 2,2'-bipyridine derivative [B]ZrCl(bipy) ([B]8-Zr), respectively. Upon reaction of [B]Zr(η6-C7H8)Cl ([B]6-Zr) with NaBEt3H, the cyclometalated derivative κ4-[PCNP]Zr(η6-C7H8) ([B]9-Zr) was isolated. In an attempt to synthesise terminal hydrides, complexes [A]MI3 ([A]2-M) were treated with KBEt3H, which led to the isolation of the cyclometalated hydrido complexes κ4-[PCNP]M(H)(κ3-Et3BH) ([A]10-M; M = Zr, Hf) featuring a κ3-bound triethyl borohydride moiety.
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Affiliation(s)
- Malte Sietzen
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
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Batke S, Kothe T, Haas M, Wadepohl H, Ballmann J. Diamidophosphines with six-membered chelates and their coordination chemistry with group 4 metals: development of a trimethylene-methane-tethered [PN2]-type "molecular claw". Dalton Trans 2016; 45:3528-40. [PMID: 26804587 DOI: 10.1039/c5dt04911c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The coordination chemistry of the phosphine-tethered diamidophosphine ligands PhP(CH2CH2CH2NHPh)2 (pr[NPN]H2) and PhP(1,2-CH2-C6H4-NHSiMe3)2 (bn[NPN]H2) featuring six-membered N–C3–P chelates was explored with group 4 metals, which allowed for the consecutive development of a new trimethylene-methane-tethered [PN2] scaffold. In the case of the propylene-linked system pr[NPN]H2, access to the sparingly soluble dibenzyl derivative pr[NPN]ZrBn2 (3-Zr) was gained, while thermally sensitive zirconium and hafnium diiodo complexes bn[NPN]MI2 (5-M, M = Zr, Hf) were isolated in the case of the benzylene-linked derivative bn[NPN]H2. Despite the related phosphine-tethered backbone architectures of both of these ligands, their group 4 complexes were found to exhibit either C1-symmetric (bn[NPN]MX2) or averaged CS-symmetric (pr[NPN]MX2) structures in solution. To restrain the overall flexibility of these systems and thereby control the properties of the resulting complexes without disrupting the six-membered chelates, the new trimethylene-methane-tethered N,N′-di-(tert-butyl)-substituted [PN2]H2 protioligand was designed. This tripodal ligand system was prepared on a gram scale and its CS-symmetric dichloro complexes [PN2]MCl2 (6-M, M = Ti, Zr, Hf) were isolated subsequently. The benzene-soluble dibenzyl derivative [PN2]ZrBn2 (7-Zr) was synthesised as well and characterised by X-ray diffraction. These results are discussed not only in conjunction with the known [NPN]-coordinated group 4 complexes incorporating five-membered chelates, but also in the context of “molecular claws” that are related to the new [PN2] tripod.
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Affiliation(s)
- S Batke
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - T Kothe
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - M Haas
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - H Wadepohl
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
| | - J Ballmann
- Anorganisch-Chemisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 276, 69120 Heidelberg, Germany.
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6
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Gehrmann T, Wadepohl H, Gade LH. Synthesis and Structural Characterization of a Lithium Alkynyl(hydrazinediido)zirconate and its Protonolysis to an Alkynylhydrazido(1-)zirconium Complex. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400060] [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]
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Groom LR, Russell AF, Schwarz AD, Mountford P. Reactions of a Cyclopentadienyl–Amidinate Titanium Benzimidamido Complex. Organometallics 2014. [DOI: 10.1021/om4011752] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Laura R. Groom
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Adam F. Russell
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Andrew D. Schwarz
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Philip Mountford
- Chemistry
Research Laboratory, Department of Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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8
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Groom LR, Schwarz AD, Nova A, Clot E, Mountford P. Synthesis and Reactions of a Cyclopentadienyl-Amidinate Titanium tert-Butoxyimido Compound. Organometallics 2013. [DOI: 10.1021/om401008a] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Laura R. Groom
- Chemistry Research
Laboratory, Department of
Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Andrew D. Schwarz
- Chemistry Research
Laboratory, Department of
Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
| | - Ainara Nova
- Institut
Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Eric Clot
- Institut
Charles Gerhardt, Université Montpellier 2, CNRS 5253, cc 1501, Place Eugène Bataillon, 34095 Montpellier Cedex 5, France
| | - Philip Mountford
- Chemistry Research
Laboratory, Department of
Chemistry, University of Oxford, Mansfield Road, Oxford OX1 3TA, U.K
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Gehrmann T, Lloret-Fillol J, Herrmann H, Wadepohl H, Gade LH. Zirconium Hydrazides as Metallanitrene Synthons: Release of Molecular N2 from a Hydrazinediido Complex Induced by Oxidative N–N Bond Cleavage. Organometallics 2013. [DOI: 10.1021/om400337g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Thorsten Gehrmann
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Julio Lloret-Fillol
- Departament de Quimica, QBIS, Universitat de Girona, Campus de Montilivi, 17071 Girona, Spain
| | - Heike Herrmann
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg,
Germany
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Keane AJ, Zavalij PY, Sita LR. N–N Bond Cleavage of Mid-Valent Ta(IV) Hydrazido and Hydrazidium Complexes Relevant to the Schrock Cycle for Dinitrogen Fixation. J Am Chem Soc 2013; 135:9580-3. [DOI: 10.1021/ja402804k] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Andrew J. Keane
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742,
United States
| | - Peter Y. Zavalij
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742,
United States
| | - Lawrence R. Sita
- Department of Chemistry and Biochemistry, University of Maryland, College Park, Maryland 20742,
United States
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11
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Unruangsri J, Morgan H, Schwarz AD, Schofield AD, Mountford P. Synthesis and Reactivity of Titanium Hydrazido Complexes Supported by Diamido-Ether Ligands. Organometallics 2013. [DOI: 10.1021/om400311w] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Junjuda Unruangsri
- Chemistry Research Laboratory, Department
of Chemistry, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Hannah Morgan
- Chemistry Research Laboratory, Department
of Chemistry, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Andrew D. Schwarz
- Chemistry Research Laboratory, Department
of Chemistry, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - A. Daniel Schofield
- Chemistry Research Laboratory, Department
of Chemistry, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
| | - Philip Mountford
- Chemistry Research Laboratory, Department
of Chemistry, University of Oxford, Mansfield
Road, Oxford OX1 3TA, U.K
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Tonks IA, Durrell AC, Gray HB, Bercaw JE. Groups 5 and 6 Terminal Hydrazido(2−) Complexes: Nβ Substituent Effects on Ligand-to-Metal Charge-Transfer Energies and Oxidation States. J Am Chem Soc 2012; 134:7301-4. [DOI: 10.1021/ja302275j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ian A. Tonks
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California
91125, United States
| | - Alec C. Durrell
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California
91125, United States
| | - Harry B. Gray
- 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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13
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Organometallic Complexes of Aminopyridines. ADVANCES IN HETEROCYCLIC CHEMISTRY 2011. [DOI: 10.1016/b978-0-12-385464-3.00003-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register]
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14
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Tonks IA, Bercaw JE. (dme)MCl3(NNPh2) (dme = dimethoxyethane; M = Nb, Ta): A Versatile Synthon for [Ta═NNPh2] Hydrazido(2-) Complexes. Inorg Chem 2010; 49:4648-56. [DOI: 10.1021/ic1004193] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Ian A. Tonks
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125
| | - John E. Bercaw
- Arnold and Mabel Beckman Laboratories of Chemical Synthesis, California Institute of Technology, Pasadena, California 91125
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Gehrmann T, Lloret Fillol J, Wadepohl H, Gade LH. Bridging N-Aminoisocyanate Ligands in Heterobimetallic Complexes: Coupling of Zirconium Hydrazinediides and Transition-Metal Carbonyls. Organometallics 2009. [DOI: 10.1021/om900877c] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Thorsten Gehrmann
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Julio Lloret Fillol
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Hubert Wadepohl
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
| | - Lutz H. Gade
- Anorganisch-Chemisches Institut, Universität Heidelberg, Im Neuenheimer Feld 270, 69120 Heidelberg, Germany
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