1
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Wagler J, Gericke R. Ge-Cu-Complexes Ph(pyO)Ge(μ 2-pyO) 2CuCl and PhGe(μ 2-pyO) 4CuCl-Representatives of Cu(I)→Ge(IV) and Cu(II)→Ge(IV) Dative Bond Systems. Molecules 2023; 28:5442. [PMID: 37513314 PMCID: PMC10385301 DOI: 10.3390/molecules28145442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 07/05/2023] [Accepted: 07/11/2023] [Indexed: 07/30/2023] Open
Abstract
Phenylgermaniumpyridine-2-olate PhGe(pyO)3 (compound 1Ge) and CuCl react with the formation of the heteronuclear complex Ph(pyO)Ge(μ2-pyO)2CuCl (2Ge') rather than forming the expected compound PhGe(μ2-pyO)3CuCl (2Ge). Single-point calculations (at the B2T-PLYP level) of the optimized molecular structures confirmed the relative stability of isomer 2Ge' over 2Ge and, for the related silicon congeners, the relative stability of 2Si over 2Si'. Decomposition of a solution of 2Ge' upon access to air provided access to some crystals of the copper(II) compound PhGe(μ2-pyO)4CuCl (3Ge). Compounds 2Ge' and 3Ge were characterized by single-crystal X-ray diffraction analyses, and the Ge-Cu bonds in these compounds were analyzed with the aid of quantum chemical calculations, e.g., Natural Bond Orbital analyses (NBO), Non-Covalent Interactions descriptor (NCI), and topology of the electron density at bond critical point using Quantum Theory of Atoms-In-Molecules (QTAIM) in conjunction with the related silicon compounds PhSi(μ2-pyO)3CuCl (2Si), PhSi(μ2-pyO)4CuCl (3Si), as well as the potential isomers Ph(pyO)Si(μ2-pyO)2CuCl (2Si') and PhGe(μ2-pyO)3CuCl (2Ge). Pronounced Cu→Ge (over Cu→Si) lone pair donation was found for the Cu(I) compounds, whereas in Cu(II) compounds 3Si and 3Ge, this σ-donation is less pronounced and only marginally enhanced in 3Ge over 3Si.
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Affiliation(s)
- Jörg Wagler
- Institut für Anorganische Chemie, TU Bergakademie Freiberg, 09596 Freiberg, Germany
| | - Robert Gericke
- Institute of Resource Ecology, Helmholtz-Zentrum Dresden-Rossendorf eV, 01328 Dresden, Germany
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2
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Tanimura K, Gon M, Tanaka K. Effects of Hypervalent Bismuth on Electronic Properties of the Azobenzene Tridentate Ligand and Roles of Lewis Acidity in Controlling Optical Properties. Inorg Chem 2023; 62:4590-4597. [PMID: 36867889 DOI: 10.1021/acs.inorgchem.2c04478] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/05/2023]
Abstract
Organobismuth compounds have been studied in various fields, including electronic states, pnictogen bonds, and catalysis. Among them, one of the unique electronic states of the element is the hypervalent state. So far, many issues regarding the electronic structures of bismuth in hypervalent states have been revealed; meanwhile, the influence of hypervalent bismuth on the electronic properties of π-conjugated scaffolds is still vailed. Here, we synthesized the hypervalent bismuth compound, BiAz, by introducing hypervalent bismuth into the azobenzene tridentate ligand as a π-conjugated scaffold. The influence of hypervalent bismuth on the electronic properties of the ligand was evaluated from optical measurements and quantum chemical calculations. The introduction of hypervalent bismuth revealed three significant electronic effects: first, hypervalent bismuth shows position-dependent electron-donating and electron-accepting effects. Second, BiAz can have a larger effective Lewis acidity than the hypervalent tin compound derivatives reported in our previous research. Finally, the coordination of dimethyl sulfoxide transformed the electronic properties of BiAz, similar to the hypervalent tin compounds. The data from quantum chemical calculations showed that the optical properties of the π-conjugated scaffold were able to be changed by introducing hypervalent bismuth. To the best of our knowledge, we first demonstrate that the introduction of hypervalent bismuth should be a new methodology for controlling the electronic properties of π-conjugated molecules and developing sensing materials.
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Affiliation(s)
- Kazuya Tanimura
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Masayuki Gon
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto 615-8510, Japan
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3
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Sharma D, Benny A, Gupta R, Jemmis ED, Venugopal A. Crystallographic evidence for a continuum and reversal of roles in primary-secondary interactions in antimony Lewis acids: applications in carbonyl activation. Chem Commun (Camb) 2022; 58:11009-11012. [PMID: 36097954 DOI: 10.1039/d2cc04027a] [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
Primary and secondary interactions form the basis of substrate activation in Lewis-acid mediated catalysis, with most substrate activations occurring at the secondary binding site. We explore two series of antimony cations, [(NMe2CH2C6H4)(mesityl)Sb]+ (A) and [(NMe2C6H4)(mesityl)Sb]+ (B), by coordinating ligands with varying nucleophilicity at the position trans to the N-donor. The decreased nucleophilicity of the incoming ligands leads to reversal from a primary bond to a secondary interaction in A, whereas a constrained N-coordination in B diminishes the border between primary and secondary bonding. Investigations on carbonyl olefin metathesis reactions and carbonyl reduction demonstrate increased reactivity of a Lewis acid when the substrate activation occurs at the primary binding site.
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Affiliation(s)
- Deepti Sharma
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, 695551, India.
| | - Annabel Benny
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, 695551, India.
| | - Radhika Gupta
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Eluvathingal D Jemmis
- Department of Inorganic and Physical Chemistry, Indian Institute of Science, Bangalore, 560012, India
| | - Ajay Venugopal
- School of Chemistry, Indian Institute of Science Education and Research Thiruvananthapuram, Vithura, Thiruvananthapuram, 695551, India.
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4
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Daniels CL, Gi E, Atterberry BA, Blome-Fernández R, Rossini AJ, Vela J. Phosphine Ligand Binding and Catalytic Activity of Group 10-14 Heterobimetallic Complexes. Inorg Chem 2022; 61:6888-6897. [PMID: 35481778 DOI: 10.1021/acs.inorgchem.2c00229] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Heterobimetallic complexes have attracted much interest due to their broad range of structures and reactivities as well as unique catalytic abilities. Additionally, these complexes can be utilized as single-source precursors for the synthesis of binary intermetallic compounds. An example is the family of bis(pyridine-2-thiolato)dichloro-germanium and tin complexes of group 10 metals (Pd and Pt). The reactivity of these heterobimetallic complexes is highly tunable through substitution of the group 14 element and the neutral ligand bound to the transition metal. Here, we study the binding energies of three different phosphorous-based ligands, PR3 (R = Bu, Ph, and OPh) by density functional theory and restricted Hartree-Fock methods. The PR3 ligand-binding energies follow the trend of PBu3 > PPh3 > P(OPh)3, in agreement with their sigma-bonding ability. These results are confirmed by ligand exchange experiments monitored with 31P NMR spectroscopy, in which a weaker binding PR3 ligand is replaced with a stronger one. Furthermore, we demonstrate that the heterobimetallic complexes are active catalysts in the Negishi coupling reaction, where stronger binding PR3 ligands inhibit access to an active site at the metal center. Similar strategies could be applied to other complexes to better understand their ligand-binding energetics and predict their reactivity as both precursors and catalysts.
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Affiliation(s)
- Carena L Daniels
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States
| | - Eunbyeol Gi
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Benjamin A Atterberry
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
| | | | - Aaron J Rossini
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
| | - Javier Vela
- Department of Chemistry, Iowa State University, Ames, Iowa 50011, United States.,US DOE Ames Laboratory, Ames, Iowa 50011, United States
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5
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Heteroelement organobismuth compounds in 2010–2020: A review. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2021.122152] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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6
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Efremov AN, Sharutin VV, Sharutina OK. SYNTHESIS AND STRUCTURE OF TRIARYLBISMUTH bis(2,3-DIFLUOROBENZOATES). J STRUCT CHEM+ 2021. [DOI: 10.1134/s0022476621120155] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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7
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Oberdorf K, Grenzer P, Wieprecht N, Ramler J, Hanft A, Rempel A, Stoy A, Radacki K, Lichtenberg C. CH Activation of Cationic Bismuth Amides: Heteroaromaticity, Derivatization, and Lewis Acidity. Inorg Chem 2021; 60:19086-19097. [PMID: 34818003 DOI: 10.1021/acs.inorgchem.1c02911] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Cationization of Bi(NPh2)3 has recently been reported to allow access to single- and double-CH activation reactions, followed by selective transformation of Bi-C into C-X functional groups (X = electrophile). Here we show that this approach can successfully be transferred to a range of bismuth amides with two aryl groups at the nitrogen, Bi(NRaryl2)3. Exchange of one nitrogen-bound aryl group for an alkyl substituent gave the first example of a homoleptic bismuth amide with a mixed aryl/alkyl substitution pattern at the nitrogen, Bi(NPhiPr)3. This compound is susceptible to selective N-N radical coupling in its neutral form and also undergoes selective CH activation when transformed into a cationic species. The second CH activation is blocked due to the absence of a second aryl moiety at nitrogen. The Lewis acidity of neutral bismuth amides is compared with that of cationic species "[Bi(aryl)(amide)(L)n]+" and "[Bi(aryl)2(L)n]+" based on the (modified) Gutmann-Beckett method (L = tetrahydrofuran or pyridine). The heteroaromatic character of [Bi(C6H3R)2NH(triflate)] compounds, which are iso-valence-electronic with anthracene, is investigated by theoretical methods. Analytical methods used in this work include nuclear magnetic resonance spectroscopy, single-crystal X-ray diffraction, mass spectrometry, and density functional theory calculations.
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Affiliation(s)
- Kai Oberdorf
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany.,Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Patrick Grenzer
- Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Nele Wieprecht
- Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Jacqueline Ramler
- Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Anna Hanft
- Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Anna Rempel
- Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Andreas Stoy
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany.,Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Krzysztof Radacki
- Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
| | - Crispin Lichtenberg
- Department of Chemistry, Philipps-Universität Marburg, Hans-Meerwein-Strasse 4, 35032 Marburg, Germany.,Department of Inorganic Chemistry, Julius-Maximilians-Universität, Würzburg Am Hubland, 97074 Würzburg, Germany
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8
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Sharutin VV, Poddel’sky AI, Sharutina OK. Organic Compounds of Bismuth: Synthesis, Structure, and Applications. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s1070328421120022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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9
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Sharutin VV, Sharutina OK, Efremov AN. Synthesis and Structure of Bismuth Complexes [(2-MeO)(5-Cl)C6H3]3Bi, [(2-MeO)(5-Cl)C6H3]3Bi[OC(O)CF2Br]2, and [(2-MeO)(5-Br)C6H3]3Bi[OC(O)C6HF4-2,3,4,5]2. RUSS J COORD CHEM+ 2021. [DOI: 10.1134/s1070328421070058] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Ramler J, Lichtenberg C. Bismuth species in the coordination sphere of transition metals: synthesis, bonding, coordination chemistry, and reactivity of molecular complexes. Dalton Trans 2021; 50:7120-7138. [PMID: 34008669 DOI: 10.1039/d1dt01300a] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This contribution is focused on bismuth species in the coordination sphere of transition metals. In molecular transition metal complexes, three types of Bi-M bonding are considered, namely dative Bi→M interactions (with Bi acting as a donor), dative Bi←M interactions (with Bi acting as an acceptor) and covalent Bi-M interactions (M = transition metal). Synthetic routes to all three classes of compounds are outlined, the Bi-M bonding situation is discussed, trends in the geometric parameters and in the coordination chemistry of the compounds are addressed, and common spectroscopic properties are summarized. As an important part of this contribution, the reactivity of bismuth species in the coordination sphere of transition metal complexes in stoichiometric and catalytic reactions is highlighted.
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Affiliation(s)
- Jacqueline Ramler
- Department of Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
| | - Crispin Lichtenberg
- Department of Inorganic Chemistry, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
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11
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Hanft A, Radacki K, Lichtenberg C. Cationic Bismuth Aminotroponiminates: Charge Controls Redox Properties. Chemistry 2021; 27:6230-6239. [PMID: 33326650 PMCID: PMC8048980 DOI: 10.1002/chem.202005186] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Indexed: 01/03/2023]
Abstract
The behavior of the redox‐active aminotroponiminate (ATI) ligand in the coordination sphere of bismuth has been investigated in neutral and cationic compounds, [Bi(ATI)3] and [Bi(ATI)2Ln][A] (L=neutral ligand; n=0, 1; A=counteranion). Their coordination chemistry in solution and in the solid state has been analyzed through (variable‐temperature) NMR spectroscopy, line‐shape analysis, and single‐crystal X‐ray diffraction analyses, and their Lewis acidity has been evaluated by using the Gutmann–Beckett method (and modifications thereof). Cyclic voltammetry, in combination with DFT calculations, indicates that switching between ligand‐ and metal‐centered redox events is possible by altering the charge of the compounds from 0 in neutral species to +1 in cationic compounds. This adds important facets to the rich redox chemistry of ATIs and to the redox chemistry of bismuth compounds, which is, so far, largely unexplored.
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Affiliation(s)
- Anna Hanft
- Department of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Krzysztof Radacki
- Department of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Crispin Lichtenberg
- Department of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074, Würzburg, Germany
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12
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13
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Ramler J, Wüst L, Rempel A, Wolz L, Lichtenberg C. Bismuth Atoms in Hydrocarbon Ligands: Bismepines as Rigid, Ditopic Arene Donors in Coordination Chemistry. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00020] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jacqueline Ramler
- Julius-Maximilians-University Würzburg, Institute of Inorganic Chemistry, Am Hubland 97074, Würzburg, Germany
| | - Leonie Wüst
- Julius-Maximilians-University Würzburg, Institute of Inorganic Chemistry, Am Hubland 97074, Würzburg, Germany
| | - Anna Rempel
- Julius-Maximilians-University Würzburg, Institute of Inorganic Chemistry, Am Hubland 97074, Würzburg, Germany
| | - Laura Wolz
- Julius-Maximilians-University Würzburg, Institute of Inorganic Chemistry, Am Hubland 97074, Würzburg, Germany
| | - Crispin Lichtenberg
- Julius-Maximilians-University Würzburg, Institute of Inorganic Chemistry, Am Hubland 97074, Würzburg, Germany
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14
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Lichtenberg C. Molecular bismuth(iii) monocations: structure, bonding, reactivity, and catalysis. Chem Commun (Camb) 2021; 57:4483-4495. [DOI: 10.1039/d1cc01284c] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Structurally defined, molecular bismuth(iii) cations show remarkable properties in coordination chemistry, Lewis acidity, and redox chemistry, allowing for unique applications in synthetic chemistry.
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Affiliation(s)
- Crispin Lichtenberg
- Julius-Maximilians-University Würzburg
- Institute of Inorganic Chemistry Am Hubland
- 97074 Würzburg
- Germany
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15
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Yeh J, Chen SS, Li S, Chen CH, Shishido T, Tsang DCW, Yamauchi Y, Li Y, Wu KC. Diels–Alder Conversion of Acrylic Acid and 2,5‐Dimethylfuran to
para
‐Xylene Over Heterogeneous Bi‐BTC Metal‐Organic Framework Catalysts Under Mild Conditions. Angew Chem Int Ed Engl 2020; 60:624-629. [DOI: 10.1002/anie.202013061] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2020] [Indexed: 01/03/2023]
Affiliation(s)
- Jyun‐Yi Yeh
- International Graduate Program of Molecular Science and Technology (NTU-MST) National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Taiwan International Graduate Program (TIGP) Academia Sinica No. 128, Sec. 2 Academia Road Taipei 11529 Taiwan
| | - Season S. Chen
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
| | - Shih‐Cheng Li
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
| | - Celine H. Chen
- School of Engineering Brown University Providence RI 02912 USA
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment Tokyo Metropolitan University 1-1 Minami-osawa, Hachioji Tokyo 192-0397 Japan
| | - Daniel C. W. Tsang
- Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Hung Hom Kowloon, Hong Kong China
| | - Yusuke Yamauchi
- JST-ERATO Yamauchi Materials Space-Tectonics Project Kagami Memorial Research Institute for Materials Science and Technology Waseda University 2-8-26 Nishiwaseda, Shinjuku-ku Tokyo 169-0051 Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN) School of Chemical Engieering The University of Queensland Brisbane QLD 4072 Australia
| | - Yi‐Pei Li
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
| | - Kevin C.‐W. Wu
- International Graduate Program of Molecular Science and Technology (NTU-MST) National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Taiwan International Graduate Program (TIGP) Academia Sinica No. 128, Sec. 2 Academia Road Taipei 11529 Taiwan
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Center of Atomic Initiative for New Materials National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
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16
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Yeh J, Chen SS, Li S, Chen CH, Shishido T, Tsang DCW, Yamauchi Y, Li Y, Wu KC. Diels–Alder Conversion of Acrylic Acid and 2,5‐Dimethylfuran to
para
‐Xylene Over Heterogeneous Bi‐BTC Metal‐Organic Framework Catalysts Under Mild Conditions. Angew Chem Int Ed Engl 2020. [DOI: 10.1002/ange.202013061] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Jyun‐Yi Yeh
- International Graduate Program of Molecular Science and Technology (NTU-MST) National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Taiwan International Graduate Program (TIGP) Academia Sinica No. 128, Sec. 2 Academia Road Taipei 11529 Taiwan
| | - Season S. Chen
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
| | - Shih‐Cheng Li
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
| | - Celine H. Chen
- School of Engineering Brown University Providence RI 02912 USA
| | - Tetsuya Shishido
- Department of Applied Chemistry for Environment Tokyo Metropolitan University 1-1 Minami-osawa, Hachioji Tokyo 192-0397 Japan
| | - Daniel C. W. Tsang
- Department of Civil and Environmental Engineering The Hong Kong Polytechnic University Hung Hom Kowloon, Hong Kong China
| | - Yusuke Yamauchi
- JST-ERATO Yamauchi Materials Space-Tectonics Project Kagami Memorial Research Institute for Materials Science and Technology Waseda University 2-8-26 Nishiwaseda, Shinjuku-ku Tokyo 169-0051 Japan
- Australian Institute for Bioengineering and Nanotechnology (AIBN) School of Chemical Engieering The University of Queensland Brisbane QLD 4072 Australia
| | - Yi‐Pei Li
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
| | - Kevin C.‐W. Wu
- International Graduate Program of Molecular Science and Technology (NTU-MST) National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Taiwan International Graduate Program (TIGP) Academia Sinica No. 128, Sec. 2 Academia Road Taipei 11529 Taiwan
- Department of Chemical Engineering National (Taiwan) University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
- Center of Atomic Initiative for New Materials National Taiwan University No. 1, Sec. 4, Roosevelt Road Taipei 10617 Taiwan
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17
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Miloserdov FM, Isaac CJ, Beck ML, Burnage AL, Farmer JCB, Macgregor SA, Mahon MF, Whittlesey MK. Impact of the Novel Z-Acceptor Ligand Bis{( ortho-diphenylphosphino)phenyl}zinc (ZnPhos) on the Formation and Reactivity of Low-Coordinate Ru(0) Centers. Inorg Chem 2020; 59:15606-15619. [PMID: 33074685 DOI: 10.1021/acs.inorgchem.0c01683] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
The preparation and reactivity with H2 of two Ru complexes of the novel ZnPhos ligand (ZnPhos = Zn(o-C6H4PPh2)2) are described. Ru(ZnPhos)(CO)3 (2) and Ru(ZnPhos)(IMe4)2 (4; IMe4 = 1,3,4,5-tetramethylimidazol-2-ylidene) are formed directly from the reaction of Ru(PPh3)(C6H4PPh2)2(ZnMe)2 (1) or Ru(PPh3)3HCl/LiCH2TMS/ZnMe2 with CO and IMe4, respectively. Structural and electronic structure analyses characterize both 2 and 4 as Ru(0) species in which Ru donates to the Z-type Zn center of the ZnPhos ligand; in 2, Ru adopts an octahedral coordination, while 4 displays square-pyramidal coordination with Zn in the axial position. Under photolytic conditions, 2 loses CO to give Ru(ZnPhos)(CO)2 that then adds H2 over the Ru-Zn bond to form Ru(ZnPhos)(CO)2(μ-H)2 (3). In contrast, 4 reacts directly with H2 to set up an equilibrium with Ru(ZnPhos)(IMe4)2H2 (5), the product of oxidative addition at the Ru center. DFT calculations rationalize these different outcomes in terms of the energies of the square-pyramidal Ru(ZnPhos)L2 intermediates in which Zn sits in a basal site: for L = CO, this is readily accessed and allows H2 to add across the Ru-Zn bond, but for L = IMe4, this species is kinetically inaccessible and reaction can only occur at the Ru center. This difference is related to the strong π-acceptor ability of CO compared to IMe4. Steric effects associated with the larger IMe4 ligands are not significant. Species 4 can be considered as a Ru(0)L4 species that is stabilized by the Ru→Zn interaction. As such, it is a rare example of a stable Ru(0)L4 species devoid of strong π-acceptor ligands.
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Affiliation(s)
- Fedor M Miloserdov
- Department of Chemistry, University of Bath, Bath BA2 3QD, United Kingdom
| | - Connie J Isaac
- Department of Chemistry, University of Bath, Bath BA2 3QD, United Kingdom
| | - Madeleine L Beck
- Department of Chemistry, University of Bath, Bath BA2 3QD, United Kingdom
| | - Arron L Burnage
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - James C B Farmer
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Stuart A Macgregor
- Institute of Chemical Sciences, School of Engineering and Physical Sciences, Heriot-Watt University, Edinburgh EH14 4AS, United Kingdom
| | - Mary F Mahon
- Department of Chemistry, University of Bath, Bath BA2 3QD, United Kingdom
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18
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Ramler J, Lichtenberg C. Molecular Bismuth Cations: Assessment of Soft Lewis Acidity. Chemistry 2020; 26:10250-10258. [PMID: 32428329 PMCID: PMC7818483 DOI: 10.1002/chem.202001674] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Revised: 05/10/2020] [Indexed: 02/06/2023]
Abstract
Three-coordinate cationic bismuth compounds [Bi(diaryl)(EPMe3 )][SbF6 ] have been isolated and fully characterized (diaryl=[(C6 H4 )2 C2 H2 ]2- , E=S, Se). They represent rare examples of molecular complexes with Bi⋅⋅⋅EPR3 interactions (R=monoanionic substituent). The 31 P NMR chemical shift of EPMe3 has been found to be sensitive to the formation of LA⋅⋅⋅EPMe3 Lewis acid/base interactions (LA=Lewis acid). This corresponds to a modification of the Gutmann-Beckett method and reveals information about the hardness/softness of the Lewis acid under investigation. A series of organobismuth compounds, bismuth halides, and cationic bismuth species have been investigated with this approach and compared to traditional group 13 and cationic group 14 Lewis acids. Especially cationic bismuth species have been shown to be potent soft Lewis acids that may prefer Lewis pair formation with a soft (S/Se-based) rather than a hard (O/N-based) donor. Analytical techniques applied in this work include (heteronuclear) NMR spectroscopy, single-crystal X-ray diffraction analysis, and DFT calculations.
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Affiliation(s)
- Jacqueline Ramler
- Institute of Inorganic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
| | - Crispin Lichtenberg
- Institute of Inorganic ChemistryJulius-Maximilians-University WürzburgAm Hubland97074WürzburgGermany
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19
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Marczenko KM, Jee S, Chitnis SS. High Lewis Acidity at Planar, Trivalent, and Neutral Bismuth Centers. Organometallics 2020. [DOI: 10.1021/acs.organomet.0c00378] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Katherine M. Marczenko
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia B3H 4R2, Canada
| | - Samantha Jee
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia B3H 4R2, Canada
| | - Saurabh S. Chitnis
- Department of Chemistry, Dalhousie University, 6274 Coburg Road, Halifax, Nova Scotia B3H 4R2, Canada
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20
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Ramler J, Radacki K, Abbenseth J, Lichtenberg C. Combined experimental and theoretical studies towards mutual osmium-bismuth donor/acceptor bonding. Dalton Trans 2020; 49:9024-9034. [PMID: 32567644 DOI: 10.1039/d0dt01663b] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Osmium(ii) PNP pincer complexes bearing a hemilabile pyridyl-pyrazolide (PyrPz) ligand have been synthesised, and their reactivity towards Lewis acidic bismuth compounds has been examined. Reactions with BiCl3 resulted in chlorine-atom-transfer to give an osmium(iii) species. Reactions with cationic bismuth species led to adduct formation through N → Bi bond formation via the PyrPz ligand. Theoretical analyses revealed that steric interactions hamper Os → Bi bond formation and indicate that such interactions are possible upon reducing the steric profile around the osmium atom. Analytical techniques include NMR, IR, and EPR spectroscopy, cyclic voltammetry, elemental analysis and DFT calculations.
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Affiliation(s)
- Jacqueline Ramler
- Department of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany.
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21
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Planas O, Peciukenas V, Cornella J. Bismuth-Catalyzed Oxidative Coupling of Arylboronic Acids with Triflate and Nonaflate Salts. J Am Chem Soc 2020; 142:11382-11387. [PMID: 32536157 PMCID: PMC7315642 DOI: 10.1021/jacs.0c05343] [Citation(s) in RCA: 35] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
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Herein we present a Bi-catalyzed
cross-coupling of arylboronic
acids with perfluoroalkyl sulfonate salts based on a Bi(III)/Bi(V)
redox cycle. An electron-deficient sulfone ligand proved to be key
for the successful implementation of this protocol, which allows the
unusual construction of C(sp2)–O bonds using commercially
available NaOTf and KONf as coupling partners. Preliminary mechanistic
studies as well as theoretical investigations reveal the intermediacy
of a highly electrophilic Bi(V) species, which rapidly eliminates
phenyl triflate.
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Affiliation(s)
- Oriol Planas
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
| | - Vytautas Peciukenas
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
| | - Josep Cornella
- Max-Planck-Institut für Kohlenforschung, Kaiser-Wilhelm-Platz 1, Mülheim an der Ruhr, 45470, Germany
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22
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Balasubramaniam S, Kumar S, Andrews AP, Jemmis ED, Venugopal A. trans
-Influence in Heavy Main Group Compounds: A Case Study on Tris(pyrazolyl)borate Bismuth Complexes. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.202000314] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Selvakumar Balasubramaniam
- School of Chemistry; Indian Institute of Science Education and Research Thiruvananthapuram; 695551 Thiruvananthapuram Vithura India
| | - Sandeep Kumar
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; 560012 Bangalore India
| | - Alex P. Andrews
- School of Chemistry; Indian Institute of Science Education and Research Thiruvananthapuram; 695551 Thiruvananthapuram Vithura India
| | - Eluvathingal D. Jemmis
- Department of Inorganic and Physical Chemistry; Indian Institute of Science; 560012 Bangalore India
| | - Ajay Venugopal
- School of Chemistry; Indian Institute of Science Education and Research Thiruvananthapuram; 695551 Thiruvananthapuram Vithura India
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23
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García-Romero Á, Plajer AJ, Miguel D, Wright DS, Bond AD, Álvarez CM, García-Rodríguez R. Tris(2-pyridyl) Bismuthines: Coordination Chemistry, Reactivity, and Anion-Triggered Pyridyl Coupling. Inorg Chem 2020; 59:7103-7116. [DOI: 10.1021/acs.inorgchem.0c00579] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Álvaro García-Romero
- GIR MIOMeT-IU, Cinquima, Quı́mica Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
| | - Alex J. Plajer
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Daniel Miguel
- GIR MIOMeT-IU, Cinquima, Quı́mica Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
| | - Dominic S. Wright
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Andrew D. Bond
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EW, U.K
| | - Celedonio M. Álvarez
- GIR MIOMeT-IU, Cinquima, Quı́mica Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
| | - Raúl García-Rodríguez
- GIR MIOMeT-IU, Cinquima, Quı́mica Inorgánica, Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011 Valladolid, Spain
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24
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Ramler J, Hofmann K, Lichtenberg C. Neutral and Cationic Bismuth Compounds: Structure, Heteroaromaticity, and Lewis Acidity of Bismepines. Inorg Chem 2019; 59:3367-3376. [DOI: 10.1021/acs.inorgchem.9b03189] [Citation(s) in RCA: 34] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Jacqueline Ramler
- Institute of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Klaus Hofmann
- Institute of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany
| | - Crispin Lichtenberg
- Institute of Inorganic Chemistry, Julius-Maximilians-University Würzburg, Am Hubland, 97074 Würzburg, Germany
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25
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Ali J, Navaneetha T, Baskar V. Bismuth and Titanium Phosphinates: Isolation of Tetra-, Hexa- and Octanuclear Clusters. Inorg Chem 2019; 59:741-747. [DOI: 10.1021/acs.inorgchem.9b02960] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Affiliation(s)
- Junaid Ali
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Tokala Navaneetha
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
| | - Viswanathan Baskar
- School of Chemistry, University of Hyderabad, Hyderabad 500046, Telangana, India
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26
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Cashman BK, Sandmann KM, Rose MJ. Isolation and X-ray Structure of a Dialkylbismuth(III) Iodo “Nanosquare”: Breaking the Polymeric Mold of R2BiX. Inorg Chem 2019; 58:13751-13754. [DOI: 10.1021/acs.inorgchem.9b01969] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Brenna K. Cashman
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712, United States
| | - Karissa M. Sandmann
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712, United States
| | - Michael J. Rose
- Department of Chemistry, The University of Texas at Austin, 105 East 24th Street, Stop A5300, Austin, Texas 78712, United States
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27
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28
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Materne K, Spröwitz C, Braun-Cula B, Limberg C. Extending the Toolbox for the Modular Arrangement of Functions at Xanthene/Dibenzofuran Platforms: Introduction of Directly Linked Transition Metals beside Bismuthanes. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800180] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Karolin Materne
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Christin Spröwitz
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Beatrice Braun-Cula
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
| | - Christian Limberg
- Institut für Chemie; Humboldt-Universität zu Berlin; Brook-Taylor-Str. 2 12489 Berlin Germany
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29
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Plajer AJ, Colebatch AL, Rizzuto FJ, Pröhm P, Bond AD, García‐Rodríguez R, Wright DS. How Changing the Bridgehead Can Affect the Properties of Tripodal Ligands. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201802350] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Alex J. Plajer
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Annie L. Colebatch
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Felix J. Rizzuto
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Patrick Pröhm
- Institut fuer Chemie und BiochemieFreie Universitaet Berlin Fabeckstr. 34–36 14159 Berlin Germany
| | - Andrew D. Bond
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Raúl García‐Rodríguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de CienciasUniversidad de Valladolid Campus Miguel Delibes 47011 Valladolid Spain
| | - Dominic S. Wright
- Department of ChemistryUniversity of Cambridge Lensfield Road Cambridge CB2 1EW UK
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30
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Plajer AJ, Colebatch AL, Rizzuto FJ, Pröhm P, Bond AD, García-Rodríguez R, Wright DS. How Changing the Bridgehead Can Affect the Properties of Tripodal Ligands. Angew Chem Int Ed Engl 2018; 57:6648-6652. [PMID: 29603844 DOI: 10.1002/anie.201802350] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2018] [Indexed: 11/08/2022]
Abstract
Although a multitude of studies have explored the coordination chemistry of classical tripodal ligands containing a range of main-group bridgehead atoms or groups, it is not clear how periodic trends affect ligand character and reactivity within a single ligand family. A case in point is the extensive family of neutral tris-2-pyridyl ligands E(2-py)3 (E=C-R, N, P), which are closely related to archetypal tris-pyrazolyl borates. With the 6-methyl substituted ligands E(6-Me-2-py)3 (E=As, Sb, Bi) in hand, the effects of bridgehead modification alone on descending a single group in the periodic table were assessed. The primary influence on coordination behaviour is the increasing Lewis acidity (electropositivity) of the bridgehead atom as Group 15 is descended, which not only modulates the electron density on the pyridyl donor groups but also introduces the potential for anion selective coordination behaviour.
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Affiliation(s)
- Alex J Plajer
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Annie L Colebatch
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Felix J Rizzuto
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Patrick Pröhm
- Institut fuer Chemie und Biochemie, Freie Universitaet Berlin, Fabeckstr. 34-36, 14159, Berlin, Germany
| | - Andrew D Bond
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
| | - Raúl García-Rodríguez
- GIR MIOMeT-IU Cinquima-Química Inorgánica Facultad de Ciencias, Universidad de Valladolid, Campus Miguel Delibes, 47011, Valladolid, Spain
| | - Dominic S Wright
- Department of Chemistry, University of Cambridge, Lensfield Road, Cambridge, CB2 1EW, UK
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31
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Materne K, Hoof S, Frank N, Herwig C, Limberg C. In Situ Formation of PBiP Ligands upon Complexation of a Mixed Phosphane/Bismuthane with Group 11 Metal Ions. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00757] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Karolin Materne
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Santina Hoof
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Nicolas Frank
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Christian Herwig
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
| | - Christian Limberg
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Str. 2, 12489 Berlin, Germany
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32
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Sen S, Ke IS, Gabbaï FP. T-Shaped Gold→Stiborane Complexes as Carbophilic Catalysts: Influence of the Peripheral Substituents. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00654] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Srobona Sen
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - Iou-Sheng Ke
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
| | - François P. Gabbaï
- Department of Chemistry, Texas A&M University, College Station, Texas 77843-3255, United States
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33
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Materne K, Braun-Cula B, Herwig C, Frank N, Limberg C. Bismuthanes as Hemilabile Donors in an O 2 -Activating Palladium(0) Complex. Chemistry 2017; 23:11797-11801. [PMID: 28817213 DOI: 10.1002/chem.201703489] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Indexed: 11/11/2022]
Abstract
A xanthene-based bismuthane/phosphane chelating ligand has been accessed that has enabled the synthesis of a palladium(0) bismuthane complex. The bismuthane donor proved to be hemilabile as it switched to a dangling position upon addition of O2 that gave a palladium(II) peroxide complex. Unlike the corresponding 4,5-bis(diphenylphosphino)-9,9-dimethylxanthene (Xantphos) palladium peroxide, the bismuth analogue could be employed for catalytic phosphane oxidation and oxidative phenol coupling.
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Affiliation(s)
- Karolin Materne
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Beatrice Braun-Cula
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Christian Herwig
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Nicolas Frank
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
| | - Christian Limberg
- Institut für Chemie, Humboldt-Universität zu Berlin, Brook-Taylor-Strasse 2, 12489, Berlin, Germany
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34
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Chen PE, McNeely J, Lum JS, Gardner EJ, Phillips V, Golen JA, Rheingold AL, Doerrer LH. LCu(μ-X)2CuL compounds: An induced cuprophilic interaction. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.05.033] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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