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Hüttenschmidt M, Lange H, Cordero MAA, Villinger A, Lochbrunner S, Seidel WW. Development and application of redox-active cyclometallating ligands based on W(II) alkyne complexes. Dalton Trans 2022; 51:852-856. [PMID: 35006216 DOI: 10.1039/d1dt02393d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The assembly of dinuclear complexes with the ultimate smallest ditopic ligands based on side-on complexes of methyl substituted alkynes is presented. In fact, the coordination of Ru(II) and Ir(III) by a W alkyne complex based cyclometallating metalla-ligand causes close intermetallic electronic cooperation, which substantially changes the electrochemical and photophysical properties of the single isolated moieties.
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Affiliation(s)
| | - Helge Lange
- Institut für Chemie, Universität Rostock, 18055 Rostock, Germany.
| | | | | | - Stefan Lochbrunner
- Institute for Physics and Department of Life, Light and Matter, Universität Rostock, 18051 Rostock, Germany
| | - Wolfram W Seidel
- Institut für Chemie, Universität Rostock, 18055 Rostock, Germany. .,Leibniz-Institut für Katalyse e.V., 18059 Rostock, Germany
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Suzuki N, Ban S, Mochizuki A, Ito S. Reactions of five-membered zirconacycloalkynes and zirconacycloallenes with Cp 2Zr(H)Cl; formal hydrogenation by metal hydrides. Dalton Trans 2021; 50:16265-16272. [PMID: 34730157 DOI: 10.1039/d1dt03313a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reactions of five-membered zirconacycloalkynes and zirconacyloallenes (1-zirconacyclopent-3-ynes and 1-zirconacyclopenta-2,3-dienes) with an excess of Cp2Zr(H)Cl, known as the Schwartz reagent, were studied. Both reactions gave five-membered zirconacycloalkenes, 1-zirconacyclopent-3-enes without subsequent work-up such as protonolysis and hydrogenolysis. The product was identical to the zirconocene-diene complex that was prepared from Cp2Zr(n-Bu)2 (Negishi reagent) and the corresponding 1,4-disubstituted 1,3-dienes. These results indicate that formal hydrogenation by metal hydride took place. The use of diisobutylaluminum hydride or 9-borabicyclo[3.3.1]nonane also gave the same product, albeit in lower yields. The reactions starting from deuterated compounds suggested that double hydrozirconation followed by elimination of a dinuclear zirconium complex resulted in the hydrogenated products.
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Affiliation(s)
- Noriyuki Suzuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Sayaka Ban
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Ayari Mochizuki
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
| | - Saki Ito
- Department of Materials and Life Sciences, Faculty of Science and Technology, Sophia University, 7-1 Kioi-cho, Chiyoda-ku, Tokyo 102-8554, Japan.
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Abstract
Due to the linear property around an acetylenic carbon, the introduction of such an atom to a small cycle would result in high ring strain. Currently, the smallest isolated rings are five-membered, including metallacycloalkynes and metallapentalynes. Both types contain at least one unusual small bond angle around the acetylenic carbon, thus exhibiting abnormal reactivities. This feature article gives a comprehensive overview on these two kind complexes. The synthesis and reactivities are extensively described, the source of stability is presented, and the future prospect is discussed. The article aims to provide a better development for the chemical diversity of five-membered metallacycloalkynes and metallapentalynes.
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Ghorai S, Jemmis ED. A DFT Study on the Stabilization of the B≡B Triple Bond in a Metallaborocycle: Contrasting Electronic Structures of Boron and Carbon Analogues. Chemistry 2017; 23:9746-9751. [DOI: 10.1002/chem.201702422] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2017] [Indexed: 11/08/2022]
Affiliation(s)
- Sagar Ghorai
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore 560012 Karnataka India
| | - Eluvathingal D. Jemmis
- Inorganic and Physical Chemistry Department; Indian Institute of Science; Bangalore 560012 Karnataka India
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Braunschweig H, Dellermann T, Dewhurst RD, Hupp B, Kramer T, Mattock JD, Mies J, Phukan AK, Steffen A, Vargas A. Strongly Phosphorescent Transition Metal π-Complexes of Boron–Boron Triple Bonds. J Am Chem Soc 2017; 139:4887-4893. [DOI: 10.1021/jacs.7b00766] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Holger Braunschweig
- Institute
for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Theresa Dellermann
- Institute
for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Rian D. Dewhurst
- Institute
for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
- Institute for Sustainable Chemistry & Catalysis with Boron, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Benjamin Hupp
- Institute
for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Thomas Kramer
- Institute
for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - James D. Mattock
- Department
of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, Sussex, United Kingdom
| | - Jan Mies
- Institute
for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Ashwini K. Phukan
- Department
of Chemical Sciences, Tezpur University Napaam, 784028 Assam, India
| | - Andreas Steffen
- Institute
for Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Alfredo Vargas
- Department
of Chemistry, School of Life Sciences, University of Sussex, Brighton BN1 9QJ, Sussex, United Kingdom
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Seidel WW, Dachtler W, Semmler J, Tänzler M, Folk M, Villinger A. Acetylene dithiolate linking up the [Tp'W(CO)(CN)] moiety with Ru(II) or Pd(II.). Chemistry 2013; 19:14702-11. [PMID: 24026953 DOI: 10.1002/chem.201301192] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 07/09/2013] [Indexed: 11/06/2022]
Abstract
A series of heterodinuclear complexes with acetylene dithiolate (acdt(2-) ) as the bridging moiety were synthesised by a facile one-pot procedure that avoided use of the highly elusive acetylene dithiol. Generation of the W-Ru complex [Tp'W(CN)(CO)(C2 S2 )Ru(η(5) -C5 H5 )(PPh3 )] (Tp'=hydrotris(3,5-dimethylpyrazolyl)borate) and the W-Pd complexes [Tp'W(CN)(CO)(C2 S2 )Pd(dppe)] and [Tp'W(CO)2 (C2 S2 )Pd(dppe)][PF6 ] (dppe=1,2-bis(diphenylphoshino)ethane), which exhibit a [W(η(2) -κ(2) -C2 S2 )M] core (M=Ru, Pd), was accomplished by using a transition-metal-assisted solvolytical removal of the Me3 Si-ethyl thiol protecting groups. All intermediate species of the reaction have been fully characterised. The highly coloured W-Ru complex [Tp'W(CN)(CO)(C2 S2 )Ru(η(5) -C5 H5 )(PPh3 )] shows reversible redox chemistry, as does the prototype complex [Tp'W(CO)2 (C2 S2 )Ru(η(5) -C5 H5 )(PPh3 )][PF6 ]. Single crystal X-ray diffraction and IR, EPR and UV/Vis spectroscopic studies in conjunction with DFT calculations prove the high electronic delocalisation of states over the acdt(2-) linker. Comparative studies revealed a higher donor strength and more pronounced dithiolate character of acdt(2-) in [Tp'W(CN)(CO)(C2 S2 )Ru(η(5) -C5 H5 )(PPh3 )] relative to [Tp'W(CO)2 (C2 S2 )Ru(η(5) -C5 H5 )(PPh3 )](+) . In addition, the influence of the overall complex charge on the metric parameters was investigated by single-crystal X-ray diffraction studies with the W-Pd complexes [Tp'WL2 (C2 S2 )Pd(dppe)] (L=(CN(-) )(CO) or (CO)2 ). The central [W(C2 S2 )Pd] units exhibit high structural similarity, which indicates the extensive delocalisation of charge over both metals.
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Affiliation(s)
- Wolfram W Seidel
- Institut für Chemie, Universität Rostock, Albert-Einstein-Straße 3a (Germany), Fax: (+49) 381-4986380.
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Kaleta K, Ruhmann M, Theilmann O, Beweries T, Roy S, Arndt P, Villinger A, Jemmis ED, Schulz A, Rosenthal U. Reactions of Group 4 Metallocene Alkyne Complexes with Carbodiimides: Experimental and Theoretical Studies of the Structure and Bonding of Five-Membered Hetero-Metallacycloallenes. J Am Chem Soc 2011; 133:5463-73. [DOI: 10.1021/ja111479j] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Katharina Kaleta
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
| | - Martin Ruhmann
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
- Abteilung Anorganische Chemie, Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, D-18059 Rostock, Germany
| | - Oliver Theilmann
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
- Abteilung Anorganische Chemie, Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, D-18059 Rostock, Germany
| | - Torsten Beweries
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
| | - Subhendu Roy
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
| | - Perdita Arndt
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
| | - Alexander Villinger
- Abteilung Anorganische Chemie, Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, D-18059 Rostock, Germany
| | - Eluvathingal D. Jemmis
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore 560012, India
- Indian Institute of Science Education and Research Thiruvananthapuram, CET campus, Thiruvananthapuram 695016, India
| | - Axel Schulz
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
- Abteilung Anorganische Chemie, Institut für Chemie, Universität Rostock, Albert-Einstein-Str. 3a, D-18059 Rostock, Germany
| | - Uwe Rosenthal
- Leibniz-Institut für Katalyse e.V. an der Universität Rostock, Albert-Einstein-Str. 29a, D-18059 Rostock, Germany
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Suzuki N, Hashizume D. Five-membered metallacycloalkynes formed from group 4 metals and [n]cumulene (n=3,5) ligands. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2009.12.016] [Citation(s) in RCA: 81] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Beweries T, Fischer C, Peitz S, Burlakov VV, Arndt P, Baumann W, Spannenberg A, Heller D, Rosenthal U. Combination of spectroscopic methods: in situ NMR and UV/Vis measurements to understand the formation of group 4 metallacyclopentanes from the corresponding metallacyclopropenes. J Am Chem Soc 2009; 131:4463-9. [PMID: 19275148 DOI: 10.1021/ja809368s] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
By reaction of the dichloride rac-(ebthi)HfCl(2) [ebthi = 1,2-ethylene-1,1'-bis(eta(5)-tetrahydroindenyl)] with lithium in the presence of bis(trimethylsilyl)acetylene, the hafnacyclopropene rac-(ebthi)Hf(eta(2)-Me(3)SiC(2)SiMe(3)) (1-Hf) was obtained. The reaction of the blue-green complex 1-Hf with an excess of ethylene at room temperature leads by insertion of the olefin to the yellow-green hafnacyclopentene 2-Hf which is only stable in solution and eliminates the alkyne at 100 degrees C under ethylene to form the corresponding yellow hafnacyclopentane 3-Hf, which was characterized by X-ray crystal structure analysis. The reaction of 1-Hf to give stepwise via 2-Hf the complex 3-Hf was investigated in detail and compared to the formation and stability of the corresponding zirconacyclopropene 1-Zr, zirconacyclopentene 2-Zr, and zirconacyclopentane 3-Zr. Moreover, the reaction of the titanocene alkyne complex 1-Ti with ethylene was studied. For investigating the reaction behavior of the alkyne complexes 1-M, NMR spectroscopy was used and the results were compared with UV/vis spectroscopy, suggesting the existence of a bis-pi-complex prior to the formation of the hafnacyclopentene 2-Hf.
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Affiliation(s)
- Torsten Beweries
- Leibniz-Institut fur Katalyse e. V. an der Universitat Rostock, Albert-Einstein-Strasse 29a, D-18059 Rostock, Germany
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Beweries T, Burlakov VV, Arndt P, Baumann W, Spannenberg A, Rosenthal U. Synthesis of Hafnacyclopentanes from Hafnocene Alkyne Complexes: Influence of Styrene Substituents on the C–C Coupling Regioselectivity. Eur J Inorg Chem 2009. [DOI: 10.1002/ejic.200900117] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Torsten Beweries
- Leibniz‐Institut für Katalyse e. V. an der Universität Rostock, Albert‐Einstein‐Str. 29a, 18059 Rostock, Germany, Fax: +49‐381‐1281‐51‐176
| | - Vladimir V. Burlakov
- A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, Vavilov St. 28, 117813 Moscow, Russia
| | - Perdita Arndt
- Leibniz‐Institut für Katalyse e. V. an der Universität Rostock, Albert‐Einstein‐Str. 29a, 18059 Rostock, Germany, Fax: +49‐381‐1281‐51‐176
| | - Wolfgang Baumann
- Leibniz‐Institut für Katalyse e. V. an der Universität Rostock, Albert‐Einstein‐Str. 29a, 18059 Rostock, Germany, Fax: +49‐381‐1281‐51‐176
| | - Anke Spannenberg
- Leibniz‐Institut für Katalyse e. V. an der Universität Rostock, Albert‐Einstein‐Str. 29a, 18059 Rostock, Germany, Fax: +49‐381‐1281‐51‐176
| | - Uwe Rosenthal
- Leibniz‐Institut für Katalyse e. V. an der Universität Rostock, Albert‐Einstein‐Str. 29a, 18059 Rostock, Germany, Fax: +49‐381‐1281‐51‐176
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Ugolotti J, Kehr G, Fröhlich R, Grimme S, Erker G. Five-Membered Zirconacycloallenoids: Synthesis and Characterization of Members of a Unique Class of Internally Metal-Stabilized Bent Allenoid Compounds. J Am Chem Soc 2009; 131:1996-2007. [DOI: 10.1021/ja8084302] [Citation(s) in RCA: 82] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Juri Ugolotti
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Gerald Kehr
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Roland Fröhlich
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Stefan Grimme
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
| | - Gerhard Erker
- Organisch-Chemisches Institut der Universität Münster, Corrensstrasse 40, 48149 Münster, Germany
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Suzuki N, Hashizume D, Koshino H, Chihara T. Transformation of a 1‐Zirconacyclopent‐3‐yne, a Five‐Membered Cycloalkyne, into a 1‐Zirconacyclopent‐3‐ene and Formal “1‐Zirconacyclopenta‐2,3‐dienes”. Angew Chem Int Ed Engl 2008; 47:5198-202. [DOI: 10.1002/anie.200800739] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Suzuki N, Hashizume D, Koshino H, Chihara T. Transformation of a 1‐Zirconacyclopent‐3‐yne, a Five‐Membered Cycloalkyne, into a 1‐Zirconacyclopent‐3‐ene and Formal “1‐Zirconacyclopenta‐2,3‐dienes”. Angew Chem Int Ed Engl 2008. [DOI: 10.1002/ange.200800739] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Suzuki N, Watanabe T, Hirose T, Chihara T. Nucleophilic reactivity of 1-zirconacyclopent-3-ynes: Carbon–carbon bond formation with aldehydes. J Organomet Chem 2007. [DOI: 10.1016/j.jorganchem.2007.07.039] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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