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Braese J, Lehnfeld F, Annibale VT, Oswald T, Beckhaus R, Manners I, Scheer M. Titanium-Catalyzed Polymerization of a Lewis Base-Stabilized Phosphinoborane. Chemistry 2023; 29:e202301741. [PMID: 37498679 DOI: 10.1002/chem.202301741] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/21/2023] [Accepted: 07/27/2023] [Indexed: 07/29/2023]
Abstract
The reaction of the Lewis base-stabilized phosphinoborane monomer tBuHPBH2 NMe3 (2 a) with catalytic amounts of bis(η5 :η1 -adamantylidenepentafulvene)titanium (1) provides a convenient new route to the polyphosphinoborane [tBuPH-BH2 ]n (3 a). This method offers access to high molar mass materials under mild conditions and with short reaction times (20 °C, 1 h in toluene). It represents an unprecedented example of a transition metal-mediated polymerization of a Lewis base-stabilized Group 13/15 compound. Preliminary studies of the substrate scope and a potential mechanism are reported.
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Affiliation(s)
- Jens Braese
- Universität Regensburg, Institut für Anorganische Chemie, 94053, Regensburg, Germany
| | - Felix Lehnfeld
- Universität Regensburg, Institut für Anorganische Chemie, 94053, Regensburg, Germany
| | - Vincent T Annibale
- University of Victoria, Department of Chemistry, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Tim Oswald
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie Carl-von-Ossietzky, Straße 9-11, 26129, Oldenburg, Germany
| | - Rüdiger Beckhaus
- Carl von Ossietzky Universität Oldenburg, Institut für Chemie Carl-von-Ossietzky, Straße 9-11, 26129, Oldenburg, Germany
| | - Ian Manners
- University of Victoria, Department of Chemistry, 3800 Finnerty Road, Victoria, BC V8P 5C2, Canada
| | - Manfred Scheer
- Universität Regensburg, Institut für Anorganische Chemie, 94053, Regensburg, Germany
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2
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Beh DW, Cuellar De Lucio AJ, del Rosal I, Maron L, Spasyuk D, Gelfand BS, Li JB, Piers WE. Organotitanium Complexes Supported by a Dianionic Pentadentate Ligand. Organometallics 2023. [DOI: 10.1021/acs.organomet.2c00609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Affiliation(s)
- Daniel W. Beh
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | | | - Iker del Rosal
- LPCNO, Université de Toulouse, INSA, UPS, LPCNO, 135 avenue de Rangueil, F-31077 Toulouse, France
- CNRS, LPCNO, F-31077 Toulouse, France
| | - Laurent Maron
- LPCNO, Université de Toulouse, INSA, UPS, LPCNO, 135 avenue de Rangueil, F-31077 Toulouse, France
- CNRS, LPCNO, F-31077 Toulouse, France
| | - Denis Spasyuk
- Canadian Light Source Inc., 44 Innovation Boulevard, Saskatoon, Saskatchewan S7N 2V3, Canada
| | - Benjamin S. Gelfand
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Jian-Bin Li
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
| | - Warren E. Piers
- Department of Chemistry, University of Calgary, 2500 University Drive NW, Calgary, Alberta T2N 1N4, Canada
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3
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de Graaff S, Chandi A, Schmidtmann M, Beckhaus R. Cooperative Reactions of Pentafulvene Niobium Complexes: Formation of Alkylidene, Imido, Hydrazido, and Niobaaziridine Complexes. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00404] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Simon de Graaff
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Amrit Chandi
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
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Pinkas J, Kubišta J, Gyepes R, Mach K, Horáček M. Molecular Hydrogen‐Induced Carbon Chain Rearrangement in Cyclopentadienyl‐Tethered Titanium(III) Permethyltitanocene Complexes. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201901148] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Jiří Pinkas
- J. Heyrovský Institute of Physical Chemistry Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
| | - Jiří Kubišta
- J. Heyrovský Institute of Physical Chemistry Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
| | - Róbert Gyepes
- J. Heyrovský Institute of Physical Chemistry Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
- Department of Inorganic Chemistry Charles University Hlavova 2030 128 40 Prague 2 Czech Republic
| | - Karel Mach
- J. Heyrovský Institute of Physical Chemistry Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
| | - Michal Horáček
- J. Heyrovský Institute of Physical Chemistry Czech Academy of Sciences Dolejškova 3 182 23 Prague 8 Czech Republic
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5
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Fischer M, Fitschen K, Schmidtmann M, Beckhaus R. Reactivity Studies of a Bis(π-η5:σ-η1-benzofulvene)titanium Complex Including Simultaneous N–H and C(sp2)–H Activation of Dibenzylamine. Organometallics 2019. [DOI: 10.1021/acs.organomet.9b00487] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Malte Fischer
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Kerstin Fitschen
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
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6
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Oswald T, Fischer M, Struckmann N, Schmidtmann M, Beckhaus R. Reaction of Pentafulvene Titanium and Zirconium Complexes with Phosphorus Ylides: Stoichiometric Reactions and Catalytic Intramolecular Proton Shuttles. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00831] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Tim Oswald
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Malte Fischer
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Niclas Struckmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
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7
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Nandanwar SK, Kim HJ. Anticancer and Antibacterial Activity of Transition Metal Complexes. ChemistrySelect 2019. [DOI: 10.1002/slct.201803073] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Affiliation(s)
- Sondavid K. Nandanwar
- Department of Marine Convergence ProgramPukyong National University Busan 48513 Republic of Korea
| | - Hak Jun Kim
- Department of ChemistryPukyong National University Busan 48513 Republic of Korea
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8
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Pinkas J, Gyepes R, Císařová I, Kubišta J, Horáček M, Žilková N, Mach K. Hydrogenation of titanocene and zirconocene bis(trimethylsilyl)acetylene complexes. Dalton Trans 2018; 47:8921-8932. [PMID: 29916518 DOI: 10.1039/c8dt01909f] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions following the addition of dihydrogen under maximum atmospheric pressure to bis(trimethylsilyl)acetylene (BTMSA) complexes of titanocenes, [(η5-C5H5-nMen)2Ti(η2-BTMSA)] (n = 0, 1, 3, and 4) (1A-1D), and zirconocenes, [(η5-C5H5-nMen)2Zr(η2-BTMSA)] (n = 2-5) (4A-4D), proceeded in diverse ways and, depending on the metal, afforded different products. The former complexes lost, in all cases, their BTMSA ligand via its hydrogenation to bis-1,2-(trimethylsilyl)ethane when reacted at 80 °C for a prolonged reaction time. For n = 0, 1, and 3, the titanocene species formed in situ dimerised via the formation of fulvalene ligands and two bridging hydride ligands, giving known green dimeric titanocenes (2A-2C). For n = 4, a titanocene hydride [(η5-C5HMe4)2TiH] (2D) was formed, similarly to the known [(η5-C5Me5)2TiH] (2E) for n = 5; however, in contrast to this example, 2D in the absence of dihydrogen spontaneously dehydrogenated to the known Ti(iii)-Ti(iii) dehydro-dimer [{Ti(η5-C5HMe4)(μ-η1:η5-C5Me4)}2] (3B). This complex has now been fully characterised via spectroscopic methods, and was shown through EPR spectroscopy to attain an intramolecular electronic triplet state. The zirconocene-BTMSA complexes 4A-4D reacted uniformly with one hydrogen molecule to give Zr(iv) zirconocene hydride alkenyls, [(η5-C5H5-nMen)2ZrH{C(SiMe3)[double bond, length as m-dash]CH(SiMe3)}] (n = 2-5) (5A-5D). These were identified through their 1H and 13C NMR spectra, which show features typical of an agostically bonded proton, [double bond, length as m-dash]CH(SiMe3). Compounds 5A-5D formed equilibria with the BTMSA complexes 4A-4D depending on hydrogen pressure and temperature.
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Affiliation(s)
- Jiří Pinkas
- J. Heyrovský Institute of Physical Chemistry, Czech Academy of Sciences, v.v.i., Dolejškova 3, 182 23 Prague 8, Czech Republic.
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Dong Z, Janka O, Kösters J, Schmidtmann M, Müller T. A Dimeric η 1 ,η 5 -Germole Dianion Bridged Titanium(III) Complex with a Multicenter Ti-Ge-Ge-Ti Bond. Angew Chem Int Ed Engl 2018; 57:8634-8638. [PMID: 29733486 DOI: 10.1002/anie.201804447] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Indexed: 11/07/2022]
Abstract
Dimeric germole dianion bridged TiIII and ZrIV complexes have been synthesized. In these complexes, the germole dianion adopts a formal η1 ,η5 coordination to the two metal centers. The bonding situation in these bridged dimers is dominated by a covalent Ge-Ge interaction that results, for example, in a strong antiferromagnetic coupling of the d1 Ti centers.
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Affiliation(s)
- Zhaowen Dong
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Str. 9-11, 26129, Oldenburg, Germany
| | - Oliver Janka
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Str. 9-11, 26129, Oldenburg, Germany
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Jutta Kösters
- Institut für Anorganische und Analytische Chemie, Westfälische Wilhelms-Universität Münster, Corrensstraße 30, 48149, Münster, Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Str. 9-11, 26129, Oldenburg, Germany
| | - Thomas Müller
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, Carl von Ossietzky-Str. 9-11, 26129, Oldenburg, Germany
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10
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Dong Z, Janka O, Kösters J, Schmidtmann M, Müller T. A Dimeric η
1
,η
5
‐Germole Dianion Bridged Titanium(III) Complex with a Multicenter Ti−Ge−Ge−Ti Bond. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201804447] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Zhaowen Dong
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl von Ossietzky-Str. 9–11 26129 Oldenburg Germany
| | - Oliver Janka
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl von Ossietzky-Str. 9–11 26129 Oldenburg Germany
- Institut für Anorganische und Analytische Chemie Westfälische Wilhelms-Universität Münster Corrensstraße 30 48149 Münster Germany
| | - Jutta Kösters
- Institut für Anorganische und Analytische Chemie Westfälische Wilhelms-Universität Münster Corrensstraße 30 48149 Münster Germany
| | - Marc Schmidtmann
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl von Ossietzky-Str. 9–11 26129 Oldenburg Germany
| | - Thomas Müller
- Institut für Chemie Carl von Ossietzky Universität Oldenburg Carl von Ossietzky-Str. 9–11 26129 Oldenburg Germany
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11
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Fischer M, Schaper R, Jaugstetter M, Schmidtmann M, Beckhaus R. Electrophilic d0 Cations of Group 4 Metals (M = Ti, Zr, Hf) Derived from Monopentafulvene Complexes: Direct Formation of Tridentate Cp,O,P-Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00088] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Malte Fischer
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Raoul Schaper
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Maximilian Jaugstetter
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Federal Republic of Germany
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12
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Fischer M, Oswald T, Ebert H, Schmidtmann M, Beckhaus R. Expanding the Scope: Monopentafulvene and -Benzofulvene Complexes of Zirconium and Hafnium. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00832] [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]
Affiliation(s)
- Malte Fischer
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Germany
| | - Tim Oswald
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Germany
| | - Hanna Ebert
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Germany
| | - Marc Schmidtmann
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Germany
| | - Rüdiger Beckhaus
- Institut für Chemie, Carl von Ossietzky Universität Oldenburg, D-26111 Oldenburg, Germany
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13
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Oswald T, Gelert T, Lasar C, Schmidtmann M, Klüner T, Beckhaus R. Formation of Binuclear Zigzag Hexapentaene Titanium Complexes via a Titanacumulene [Ti=C=C=CH2
] Intermediate. Angew Chem Int Ed Engl 2017; 56:12297-12301. [DOI: 10.1002/anie.201706674] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Revised: 07/26/2017] [Indexed: 11/10/2022]
Affiliation(s)
- Tim Oswald
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften, Carl von Ossietzky-Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Tina Gelert
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften, Carl von Ossietzky-Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Christian Lasar
- 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
| | - Thorsten Klüner
- 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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Oswald T, Gelert T, Lasar C, Schmidtmann M, Klüner T, Beckhaus R. Formation of Binuclear Zigzag Hexapentaene Titanium Complexes via a Titanacumulene [Ti=C=C=CH2
] Intermediate. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201706674] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Tim Oswald
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften, Carl von Ossietzky-Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Tina Gelert
- Institut für Chemie; Fakultät für Mathematik und Naturwissenschaften, Carl von Ossietzky-Universität Oldenburg; Postfach 2503 26111 Oldenburg Germany
| | - Christian Lasar
- 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
| | - Thorsten Klüner
- 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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