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He X, Pan X, Xiong C, Zhang Y, Hong D, Fang H, Cui P. Rare-Earth Metalloligands for Low -Valent Cobalt Complexes: Fine Electronic Tuning via Co→RE Dative Interactions. Inorg Chem 2024; 63:8155-8162. [PMID: 38651290 DOI: 10.1021/acs.inorgchem.4c00367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Rare-earth metalloligand supported low-valent cobalt complexes were synthesized by utilizing a small-sized heptadentate phosphinomethylamine LsNH3 and a large-sized arene-anchored hexadentate phosphinomethylamine LlArH3 ligand precursors. The RE(III)-Co(-I)-N2 (RE = Sc, Lu, Y, Gd, La) complexes containing rare-earth metals including the smallest Sc and largest La were characterized by multinuclear NMR spectroscopy, X-ray diffraction analysis, electrochemistry, and computational studies. The Co(-I)→RE(III) dative interactions were all polarized with major contributions from the 3dz2 orbital of the cobalt center, which was slightly affected by the identity of rare-earth metalloligands. The IR spectroscopic data and redox potentials obtained from cyclic voltammetry revealed that the electronic property of the Co(-I) center was finely tuned by the rare-earth metalloligand, which was revealed by variation of the ligand systems containing LsN, LmN, and LlAr. Unlike the direct alteration of the electronic property of metal center via an ancillary ligand, such a series of rare-earth metalloligand represents a smooth strategy to tune the electronic property of transition metals.
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Affiliation(s)
- Xiuyan He
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 S. Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Xiaowei Pan
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, P. R. China
| | - Chunyan Xiong
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 S. Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Yun Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 S. Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Dongjing Hong
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 S. Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Huayi Fang
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, P. R. China
| | - Peng Cui
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 S. Jiuhua Road, Wuhu, Anhui 241002, P. R. China
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2
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Wang X, Niu Z, McDowell SAC, Li Q. Triel Bonds between BH 3/C 5H 4BX and M(MDA) 2 (X = H, CN, F, CH 3, NH 2; M = Ni, Pd, Pt, MDA = Enolated Malondialdehyde) and Group 10 Transition Metal Electron Donors. Molecules 2024; 29:1602. [PMID: 38611881 PMCID: PMC11013632 DOI: 10.3390/molecules29071602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2024] [Revised: 03/30/2024] [Accepted: 04/01/2024] [Indexed: 04/14/2024] Open
Abstract
A systematic theoretical study was conducted on the triel bonds (TrB) within the BH3∙∙∙M(MDA)2 and C5H4BX∙∙∙M(MDA)2 (M = Ni, Pd, Pt, X = H, CN, F, CH3, NH2, MDA = enolated malondialdehyde) complexes, with BH3 and C5H4BX acting as the electron acceptors and the square-coordinated M(MDA)2 acting as the electron donor. The interaction energies of these systems range between -4.71 and -33.18 kcal/mol. The larger the transition metal center M, the greater the enhancement of the TrB, with σ-hole TrBs found to be stronger than π-hole TrBs. In the σ-hole TrB complex, an electron-withdrawing substituent on the C opposite to the B atom enhances the TrB, while an electron-donating substituent has little effect on the strength of TrB in the Pd and Pt complexes but enhances the TrB in the Ni-containing complexes. The van der Waals interaction plays an important role in stabilizing these binary systems, and its contribution diminishes with increasing M size. The orbital effect within these systems is largely due to charge transfer from the dz2 orbital of M into the empty pz orbital of B.
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Affiliation(s)
- Xin Wang
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China; (X.W.); (Z.N.)
| | - Zhihao Niu
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China; (X.W.); (Z.N.)
| | - Sean A. C. McDowell
- Department of Biological and Chemical Sciences, The University of the West Indies, Cave Hill Campus, Bridgetown BB11000, Barbados
| | - Qingzhong Li
- The Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical Engineering, Yantai University, Yantai 264005, China; (X.W.); (Z.N.)
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3
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Li R, Zafar M, Danovich D, Subramaniyan V, Tibika F, Tulchinsky Y. Sulfonium Cation in the Service of π-Acid Catalysis. Angew Chem Int Ed Engl 2024; 63:e202314997. [PMID: 38009835 DOI: 10.1002/anie.202314997] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 11/17/2023] [Accepted: 11/27/2023] [Indexed: 11/29/2023]
Abstract
While still rare, cationic ligands offer much promise as tunable electron-withdrawing ligands for π-acid catalysis. Recently, we introduced pincer-type sulfonium cations into the list of available strongly π-acidic ancillary ligands. However, the M-S bond in sulfonium complexes of these ligands was found highly labile, precluding their catalytic applications. Herein we demonstrate that this obstacle can be overcome by increasing the rigidity of the sulfonium pincer scaffold. X-ray analyses confirm that despite bearing a formal positive charge, the sulfur atom of this newly designed sulfonium ligand maintains its coordination to the Pt(II)-center, while DFT calculations indicate that by doing so it strongly enhances the electrophilic character of the metal. Kinetic studies carried out on three model cycloisomerization reactions prove that such a tris-cationic sulfonium-Pt(II) complex is highly reactive, compared to its thioether-based analogue. This proof-of-concept study presents the first example of employing sulfonium-based ligands in homogeneous catalysis.
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Affiliation(s)
- Ruiping Li
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Mohammad Zafar
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - David Danovich
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | | | - Françoise Tibika
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
| | - Yuri Tulchinsky
- Institute of Chemistry, The Hebrew University of Jerusalem, Jerusalem, 9190401, Israel
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4
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Zhang Y, Pan X, Xu M, Xiong C, Hong D, Fang H, Cui P. Dinitrogen Complexes of Cobalt(-I) Supported by Rare-Earth Metal-Based Metalloligands. Inorg Chem 2023; 62:3836-3846. [PMID: 36800534 DOI: 10.1021/acs.inorgchem.2c04099] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
Abstract
Sequential reactions of heptadentate phosphinoamine LH3 with rare-earth metal tris-alkyl precursor (Me3SiCH2)3Ln(THF)2 (Ln = Sc, Lu, Yb, Y, Gd) and a low-valent cobalt complex (Ph3P)3CoI afforded rare-earth metal-supported cobalt iodide complexes. Reduction of these iodide complexes under N2 allowed the isolation of the first series of dinitrogen complexes of Co(-I) featuring dative Co(-I) → Ln (Ln = Sc, Lu, Yb, Y, Gd) bonding interactions. These compounds were characterized by multinuclear NMR spectroscopy, X-ray diffraction analysis, electrochemistry, and computational studies. The correlation of N-N vibrational frequencies with the pKa of [Ln(H2O)6]3+ showed that strongest activation of N2 was achieved with the least Lewis acidic Gd(III) ion. Interestingly, these Ln-Co-N2 complexes catalyzed silylation of N2 in the presence of KC8 and Me3SiCl with turnover numbers (TONs) up to 16, where the lutetium-supported Co(-I) complex showed the highest activity within the series. The role of the Lewis acidic Ln(III) was crucial to achieve catalytic turnovers and tunable reactivity toward N2 functionalization.
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Affiliation(s)
- Yun Zhang
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Xiaowei Pan
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, P. R. China
| | - Min Xu
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Chunyan Xiong
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Dongjing Hong
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, P. R. China
| | - Huayi Fang
- School of Materials Science and Engineering, Tianjin Key Lab for Rare Earth Materials and Applications, Nankai University, No. 38 Tongyan Road, Haihe Education Park, Tianjin 300350, P. R. China
| | - Peng Cui
- Key Laboratory of Functionalized Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials Science, Anhui Normal University, 189 South Jiuhua Road, Wuhu, Anhui 241002, P. R. China
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5
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Navarro M, Moreno JJ, Pérez-Jiménez M, Campos J. Small molecule activation with bimetallic systems: a landscape of cooperative reactivity. Chem Commun (Camb) 2022; 58:11220-11235. [PMID: 36128973 PMCID: PMC9536487 DOI: 10.1039/d2cc04296g] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022]
Abstract
There is growing interest in the design of bimetallic cooperative complexes, which have emerged due to their potential for bond activation and catalysis, a feature widely exploited by nature in metalloenzymes, and also in the field of heterogeneous catalysis. Herein, we discuss the widespread opportunities derived from combining two metals in close proximity, ranging from systems containing multiple M-M bonds to others in which bimetallic cooperation occurs even in the absence of M⋯M interactions. The choice of metal pairs is crucial for the reactivity of the resulting complexes. In this context, we describe the prospects of combining not only transition metals but also those of the main group series, which offer additional avenues for cooperative pathways and reaction discovery. Emphasis is given to mechanisms by which bond activation occurs across bimetallic structures, which is ascribed to the precise synergy between the two metal atoms. The results discussed herein indicate a future landscape full of possibilities within our reach, where we anticipate that bimetallic synergism will have an important impact in the design of more efficient catalytic processes and the discovery of new catalytic transformations.
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Affiliation(s)
- Miquel Navarro
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Juan José Moreno
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Marina Pérez-Jiménez
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
| | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ), Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA), Consejo Superior de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio 49, 41092 Sevilla, Spain.
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6
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Litle ED, Gabbaï FP. Metal→Carbon Dative Bonding. Angew Chem Int Ed Engl 2022; 61:e202201841. [DOI: 10.1002/anie.202201841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Indexed: 11/10/2022]
Affiliation(s)
- Elishua D. Litle
- Department of Chemistry Texas A&M University College Station TX 77843 USA
| | - François P. Gabbaï
- Department of Chemistry Texas A&M University College Station TX 77843 USA
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7
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Litle ED, Gabbaï FP. Metal→Carbon Dative Bonding. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202201841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Elishua D. Litle
- Department of Chemistry Texas A&M University College Station TX 77843 USA
| | - François P. Gabbaï
- Department of Chemistry Texas A&M University College Station TX 77843 USA
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8
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Naganawa Y, Nakajima Y, Sakaki S, Kameo H. Theoretical Study on Si‒Cl Bond Activation in Pd‐Catalyzed Cross‐Coupling of Chlorosilanes with Organoaluminum. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Yuki Naganawa
- National Institute of Advanced Industrial Science and Technology Interdisciplinary research center for catalytic chemistry JAPAN
| | - Yumiko Nakajima
- National institute of advanced industrial science and technology Interdisciplinary research center for catalytic chemistry JAPAN
| | | | - Hajime Kameo
- Osaka Prefecture University Department of Chemistry, Graduate School of Science Gakuen-cho 1-1, Naka-ku 599-8531 Sakai JAPAN
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9
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Hidalgo N, Romero-Pérez C, Maya C, Fernández I, Campos J. Reactivity of [Pt(P t Bu 3) 2] with Zinc(I/II) Compounds: Bimetallic Adducts, Zn-Zn Bond Cleavage, and Cooperative Reactivity. Organometallics 2021; 40:1113-1119. [PMID: 34602699 PMCID: PMC8479860 DOI: 10.1021/acs.organomet.1c00088] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/12/2021] [Indexed: 11/30/2022]
Abstract
Metal-only Lewis pairs (MOLPs) based on zinc electrophiles are particularly interesting due to their relevance to Negishi cross-coupling reactions. Zinc-based ligands in bimetallic complexes also render unique reactivity to the transition metals at which they are bound. Here we explore the use of sterically hindered [Pt(P t Bu3)2] (1) to access Pt/Zn bimetallic complexes. Compounds [(P t Bu3)2Pt → Zn(C6F5)2] (2) and [Pt(ZnCp*)6] (3) (Cp* = pentamethylcyclopentadienyl) were isolated by reactions with Zn(C6F5)2 and [Zn2Cp*2], respectively. We also disclose the cooperative reactivity of 1/ZnX2 pairs (X = Cl, Br, I, and OTf) toward water and dihydrogen, which can be understood in terms of bimetallic frustration.
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Affiliation(s)
- Nereida Hidalgo
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
| | - Carlos Romero-Pérez
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
| | - Celia Maya
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
| | - Israel Fernández
- Departamento
de Química Orgánica I and Centro de Innovación
en Química Avanzada (ORFEO−CINQA), Facultad de Ciencias
Químicas, Universidad Complutense
de Madrid, Madrid 28040, Spain
| | - Jesús Campos
- Instituto
de Investigaciones Químicas (IIQ), Departamento de Química
Inorgánica and Centro de Innovación en Química
Avanzada (ORFEO−CINQA), Consejo Superior
de Investigaciones Científicas (CSIC) and University of Sevilla, Avenida Américo Vespucio
49, 41092 Sevilla, Spain
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10
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Escomel L, Del Rosal I, Maron L, Jeanneau E, Veyre L, Thieuleux C, Camp C. Strongly Polarized Iridium δ--Aluminum δ+ Pairs: Unconventional Reactivity Patterns Including CO 2 Cooperative Reductive Cleavage. J Am Chem Soc 2021; 143:4844-4856. [PMID: 33735575 DOI: 10.1021/jacs.1c01725] [Citation(s) in RCA: 32] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
The iridium tetrahydride complex Cp*IrH4 reacts with a range of isobutylaluminum derivatives of general formula Al(iBu)x(OAr)3-x (x = 1, 2) to give the unusual iridium aluminum species [Cp*IrH3Al(iBu)(OAr)] (1) via a reductive elimination route. The Lewis acidity of the Al atom in complex 1 is confirmed by the coordination of pyridine, leading to the adduct [Cp*IrH3Al(iBu)(OAr)(Py)] (2). Spectroscopic, crystallographic, and computational data support the description of these heterobimetallic complexes 1 and 2 as featuring strongly polarized Al(III)δ+-Ir(III)δ- interactions. Reactivity studies demonstrate that the binding of a Lewis base to Al does not quench the reactivity of the Ir-Al motif and that both species 1 and 2 promote the cooperative reductive cleavage of a range of heteroallenes. Specifically, complex 2 promotes the decarbonylation of CO2 and AdNCO, leading to CO (trapped as Cp*IrH2(CO)) and the alkylaluminum oxo ([(iBu)(OAr)Al(Py)]2(μ-O) (3)) and ureate ({Al(OAr)(iBu)[κ2-(N,O)AdNC(O)NHAd]} (4)) species, respectively. The bridged amidinate species Cp*IrH2(μ-CyNC(H)NCy)Al(iBu)(OAr) (5) is formed in the reaction of 2 with dicyclohexylcarbodiimine. Mechanistic investigations via DFT support cooperative heterobimetallic bond activation processes.
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Affiliation(s)
- Léon Escomel
- Laboratory of Catalysis, Polymerization, Processes and Materials, CP2M UMR 5128, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Iker Del Rosal
- Université de Toulouse, CNRS, INSA, UPS, UMR 5215, LPCNO, 135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Laurent Maron
- Université de Toulouse, CNRS, INSA, UPS, UMR 5215, LPCNO, 135 Avenue de Rangueil, F-31077 Toulouse, France
| | - Erwann Jeanneau
- Université de Lyon, Centre de Diffractométrie Henri Longchambon, 5 Rue de la Doua, 69100 Villeurbanne, France
| | - Laurent Veyre
- Laboratory of Catalysis, Polymerization, Processes and Materials, CP2M UMR 5128, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Chloé Thieuleux
- Laboratory of Catalysis, Polymerization, Processes and Materials, CP2M UMR 5128, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
| | - Clément Camp
- Laboratory of Catalysis, Polymerization, Processes and Materials, CP2M UMR 5128, Université de Lyon, Institut de Chimie de Lyon, CNRS, Université Lyon 1, ESCPE Lyon, 43 Bd du 11 Novembre 1918, F-69616 Villeurbanne, France
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Takemoto S, Yoshii K, Yamano T, Tsurusaki A, Matsuzaka H. Metal-metal multiple bond formation induced by σ-acceptor Lewis acid ligands. Chem Commun (Camb) 2021; 57:923-926. [PMID: 33393949 DOI: 10.1039/d0cc07278h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction of [Cp*Ru(μ-NHPh)]2 (Cp* = η5-C5Me5) with Lewis acids of the type MX2 (M = Zn, Sn, Pb; X = Cl, OTf) affords Ru2 → M donor-acceptor adducts characterized as π complexes of a Ru[double bond, length as m-dash]Ru double bond with M(ii) Lewis acids. The results illustrate for the first time the ability of σ-acceptor Lewis acid ligands to induce the formation of a metal-metal multiple bond via stabilizing dative interactions.
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Affiliation(s)
- Shin Takemoto
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
| | - Kaname Yoshii
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
| | - Takahiro Yamano
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
| | - Akihiro Tsurusaki
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
| | - Hiroyuki Matsuzaka
- Department of Chemistry, Graduate School of Science, Osaka Prefecture University, Sakai, Osaka 599-8531, Japan.
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12
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Navarro M, Campos J. Bimetallic frustrated Lewis pairs. ADVANCES IN ORGANOMETALLIC CHEMISTRY 2021. [DOI: 10.1016/bs.adomc.2021.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Charles RM, Taylor NS, Mercado AA, Frost CE, Yokley TW, Eckenhoff WT, Schley ND, DeYonker NJ, Brewster TP. Systematic evaluation of the electronic effect of aluminum-containing ligands in iridium-aluminum and rhodium-aluminum bimetallic complexes. Dalton Trans 2020; 49:13029-13043. [PMID: 32915181 PMCID: PMC7530109 DOI: 10.1039/d0dt02472d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/30/2024]
Abstract
Pyridinemethanolate and oxyquinoline derivatives of previously reported late transition metal-aluminum heterobimetallic complexes containing iridium and rhodium have been synthesized and characterized. A combination of experimental and computational data permits a direct comparison of the electronic effects of each novel aluminum-containing ligand in our library on the late transition metal centers. Alongside electronic data of previously reported oxypyridine bridged systems, we conclude that the addition of a dialkylaluminum(X) (X = anion) fragment does not significantly perturb the electron donor ability of the bridging ligand. Anions bound to the aluminum are also shown to behave similarly. The overall library, thus, suggests that the best predictor of the electron donor ability of an alkylaluminum-containing ligand to a transition metal is the donor power of the bridging ligand.
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Affiliation(s)
- R Malcolm Charles
- Department of Chemistry, The University of Memphis, 3744 Walker Avenue, Smith Chemistry Building, Memphis, Tennessee 38152, USA.
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14
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Charles RM, Tupkar H, Helland SD, Mercado AA, Eckenhoff WT, Schley ND, DeYonker NJ, Brewster TP. Synthesis and Electronic Characterization of Iridium‐Aluminum and Rhodium‐Aluminum Heterobimetallic Complexes Bridged by 3‐Oxypyridine and 4‐Oxypyridine. Eur J Inorg Chem 2020. [DOI: 10.1002/ejic.201901317] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- R. Malcolm Charles
- Department of Chemistry The University of Memphis 3744 Walker Avenue, Smith Chemistry Building 38152 Memphis Tennessee USA
| | - Hrishikesh Tupkar
- Department of Chemistry The University of Memphis 3744 Walker Avenue, Smith Chemistry Building 38152 Memphis Tennessee USA
| | - Sarah D. Helland
- Department of Chemistry Rhodes College 2000 N. Parkway 38112 Memphis Tennessee USA
| | - Angel A. Mercado
- Department of Chemistry The University of Memphis 3744 Walker Avenue, Smith Chemistry Building 38152 Memphis Tennessee USA
| | - William T. Eckenhoff
- Department of Chemistry Rhodes College 2000 N. Parkway 38112 Memphis Tennessee USA
| | - Nathan D. Schley
- Department of Chemistry Vanderbilt University 37235 Nashville Tennessee USA
| | - Nathan J. DeYonker
- Department of Chemistry The University of Memphis 3744 Walker Avenue, Smith Chemistry Building 38152 Memphis Tennessee USA
| | - Timothy P. Brewster
- Department of Chemistry The University of Memphis 3744 Walker Avenue, Smith Chemistry Building 38152 Memphis Tennessee USA
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15
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Sugita K, Yamashita M. An Alumanylyttrium Complex with an Absorption due to a Transition from the Al-Y Bond to an Unoccupied d-Orbital. Chemistry 2020; 26:4520-4523. [PMID: 32052882 DOI: 10.1002/chem.202000752] [Citation(s) in RCA: 36] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2020] [Indexed: 11/08/2022]
Abstract
The reaction between a dialkyl-substituted alumanyl anion and [Y(CH2 SiMe3 )2 (thf)3 ][BPh4 ] resulted in the formation of (dialkylalumanyl)yttrium complex 2, which exhibits the first 2-center-2-electron (2 c-2 e) Al-Y bond. The 1 H and 13 C NMR spectra of 2 together with an X-ray crystallographic analysis indicated a C2v symmetrical structure. DFT calculations on 2 revealed that its LUMO consists of overlapping 3 p- and 4 d-orbitals of the Al and Y atoms, respectively, and that the HOMO-LUMO gap is narrow. The UV/Vis spectrum of 2 exhibited a visible absorption at 432 nm, which suggests that the strong σ-donating and π-accepting character of the three-coordinate dialkylalumanyl ligand generates a colored d0 -complex that does not contain any π-electrons.
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Affiliation(s)
- Kengo Sugita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan
| | - Makoto Yamashita
- Department of Molecular and Macromolecular Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya, Aichi, 464-8603, Japan
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16
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Stabilization of neutral tricoordinate pyramidal boron: Enhanced Lewis acidity and profound reactivity. Polyhedron 2020. [DOI: 10.1016/j.poly.2019.114193] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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17
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Frogley BJ, Hill AF, Sharma M, Sinha A, Ward JS. Semi-bridging σ-silyls as Z-type ligands. Chem Commun (Camb) 2020; 56:3532-3535. [DOI: 10.1039/c9cc07763d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactions of SiHPh(NCH2PPh2)2C6H4-1,2 with zerovalent group 10 reagents afford the homoleptic bimetallic complexes [M2{μ-κ3-Si,P,P′-SiPh(CH2PPh2)2C6H4}2] (M = Ni, Pd, Pt) in which the M–M bond is unsymmetrically bridged by two σ-silyl groups.
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Affiliation(s)
| | - Anthony F. Hill
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Manab Sharma
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Arup Sinha
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
| | - Jas S. Ward
- Research School of Chemistry
- Australian National University
- Canberra
- Australia
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18
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Abstract
A PAlP pincer ligand derived from 2-diphenylphosphino-6-isopropylphenol was synthesized. The Lewis acidity of the Al center of the ligand was evaluated with coordination of (O)PEt3. A zwitterionic rhodium-aluminum heterobimetallic complex bearing the PAlP ligand was synthesized through its complexation with [RhCl(nbd)]2. Moreover, reduction of the zwitterionic rhodium-aluminum complex with KC8 afforded heterobimetallic complexes bearing an X-type PAlP pincer ligand.
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19
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Du J, Huang Z, Zhang Y, Wang S, Zhou S, Fang H, Cui P. A Scandium Metalloligand‐Based Heterobimetallic Pd−Sc Complex: Electronic Tuning Through a Very Short Pd→Sc Dative Bond. Chemistry 2019; 25:10149-10155. [DOI: 10.1002/chem.201901424] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2019] [Revised: 05/22/2019] [Indexed: 11/09/2022]
Affiliation(s)
- Jun Du
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University 189 S. Jiuhua Road Wuhu Anhui 241002 P.R. China
| | - Zeming Huang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University 189 S. Jiuhua Road Wuhu Anhui 241002 P.R. China
| | - Yanan Zhang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University 189 S. Jiuhua Road Wuhu Anhui 241002 P.R. China
| | - Shaowu Wang
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University 189 S. Jiuhua Road Wuhu Anhui 241002 P.R. China
| | - Shuangliu Zhou
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University 189 S. Jiuhua Road Wuhu Anhui 241002 P.R. China
| | - Huayi Fang
- Department of ChemistryFudan University No. 2205 Songhu Road, Yangpu District Shanghai 200438 P.R. China
| | - Peng Cui
- Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Laboratory of Molecule-Based Materials, College of Chemistry and Materials ScienceAnhui Normal University 189 S. Jiuhua Road Wuhu Anhui 241002 P.R. China
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20
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Kuriakose N, Zheng JJ, Saito T, Hara N, Nakao Y, Sakaki S. Characterization of Rh-Al Bond in Rh(PAlP) (PAlP = Pincer-type Diphosphino-Aluminyl Ligand) in Comparison with Rh(L)(PMe 3) 2 (L = AlMe 2, Al(NMe 2) 2, BR 2, SiR 3, CH 3, Cl, or OCH 3): Theoretical Insight. Inorg Chem 2019; 58:4894-4906. [PMID: 30946577 DOI: 10.1021/acs.inorgchem.8b03493] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
The unique Rh-Al bond in recently synthesized Rh(PAlP) 1 {PAlP = pincer-type diphosphino-aluminyl ligand Al[NCH2(P iPr2)]2(C6H4)2NMe} was investigated using the DFT method. Complex 1 has four doubly occupied nonbonding d orbitals on the Rh atom and one Rh d orbital largely participating in the Rh-Al bond which exhibits considerably large bonding overlap between Rh and Al atoms like in a covalent bond. Interestingly, Rhδ--Alδ+ polarization is observed in the bonding MO of 1, which is reverse to Rhδ+-Eδ- (E = coordinating atom) polarization found in a usual coordinate bond. This unusual polarization arises from the presence of the Al valence orbital at significantly higher energy than the Rh valence orbital energy. Characteristic features of 1 are further unveiled by comparing 1 with similar Rh complexes RhL(PMe3)2 (2 for L = AlMe2, 3 for L = Al(NMe2)2, 4 for L = BMe2, 5 for L = SiMe3, 6 for L = SiH3, 7 for L = CH3, 8 for L = OMe, and 9 for L = Cl). As expected, 7, 8, and 9 exhibit usual Rhδ+-Eδ- polarization (E = coordinating atom) in the Rh-E bonding MO. On the other hand, the reverse Rhδ--Eδ+ polarization is observed in the Rh-E bonding MOs of 2-5 like in 1, while the Rh-Si bond is polarized little in 6. These results are clearly understood in terms of the valence orbital energy of the ligand. Because the LUMO of 1 mainly consists of the Rh 4dσ, 5s, and 5p orbitals and the Al 3s and 3p orbitals, both Rh and Al atoms play the role of coordinating site for a substrate bearing a lone pair orbital. For instance, NH3 and pyridine coordinate to both Al and Rh atoms with considerably large binding energy. PAlP exhibits significantly strong trans influence, which is as strong as that of SiMe3 but moderately weaker than that of BMe2. The trans influence of these ligands is mainly determined by the valence orbital energy of the ligand and the covalent bond radius of the coordinating E atom.
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Affiliation(s)
- Nishamol Kuriakose
- Fukui Institute for Fundamental Chemistry , Kyoto University , Takano-Nishi-hiraki-cho, 34-4, Sakyo-ku , Kyoto 606-8103 , Japan
| | - Jia-Jia Zheng
- Fukui Institute for Fundamental Chemistry , Kyoto University , Takano-Nishi-hiraki-cho, 34-4, Sakyo-ku , Kyoto 606-8103 , Japan
| | - Teruhiko Saito
- Department of Material Chemistry, Graduate School of Engineering , Kyoto University , Kyoto 615-8510 , Japan
| | - Naofumi Hara
- Department of Material Chemistry, Graduate School of Engineering , Kyoto University , Kyoto 615-8510 , Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering , Kyoto University , Kyoto 615-8510 , Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry , Kyoto University , Takano-Nishi-hiraki-cho, 34-4, Sakyo-ku , Kyoto 606-8103 , Japan
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21
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Muessig JH, Stennett TE, Schmidt U, Dewhurst RD, Mailänder L, Braunschweig H. Oxidative addition of arsenic halides to platinum(0). Dalton Trans 2019; 48:3547-3550. [PMID: 30758372 DOI: 10.1039/c8dt04995e] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Reaction of AsCl3 with Pt(0) complexes [Pt(PCy3)2], [Pt(PCy3)(IMes)] and [Pt(IMes)2] (IMes = 1,3-bis(2,4,6-trimethylphenyl)imidazol-2-ylidene) resulted in oxidative addition of As-Cl bonds at the Pt centres to form complexes of the form trans-[PtCl(AsCl2)L2]. Two of these compounds were characterised by X-ray diffraction, making them the first structurally characterised examples of AsX2 ligands (X = halogen). AsBr3 also underwent oxidative addition to [Pt(PCy3)2], forming trans-[PtBr(AsBr2)(PCy3)2] in situ, as judged by 31P NMR spectroscopy. This reaction was unselective, yielding several products, of which a Pt3As2 cluster could be identified by single-crystal X-ray diffraction.
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Affiliation(s)
- Jonas H Muessig
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg, Germany.
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22
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Hidalgo N, Bajo S, Moreno JJ, Navarro-Gilabert C, Mercado BQ, Campos J. Reactivity of a gold(i)/platinum(0) frustrated Lewis pair with germanium and tin dihalides. Dalton Trans 2019; 48:9127-9138. [DOI: 10.1039/c9dt00702d] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The rich reactivity of tetrylene dihalides towards a metallic FLP: phosphine exchange reactions and formation of homo and heterobimetallic compounds.
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Affiliation(s)
- Nereida Hidalgo
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
- 41092 Sevilla
- Spain
| | - Sonia Bajo
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
- 41092 Sevilla
- Spain
| | - Juan José Moreno
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
- 41092 Sevilla
- Spain
| | - Carlos Navarro-Gilabert
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
- 41092 Sevilla
- Spain
| | | | - Jesús Campos
- Instituto de Investigaciones Químicas (IIQ)
- Departamento de Química Inorgánica and Centro de Innovación en Química Avanzada (ORFEO-CINQA). Universidad de Sevilla and Consejo Superior de Investigaciones Científicas (CSIC)
- 41092 Sevilla
- Spain
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23
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You D, Yang H, Sen S, Gabbaï FP. Modulating the σ-Accepting Properties of an Antimony Z-type Ligand via Anion Abstraction: Remote-Controlled Reactivity of the Coordinated Platinum Atom. J Am Chem Soc 2018; 140:9644-9651. [PMID: 29979870 DOI: 10.1021/jacs.8b05520] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
In search of ligand platforms, which can be used to remotely control the catalytic activity of a transition metal, we have investigated the coordination noninnocence of ambiphilic L2/Z-type ligands containing a trifluorostiborane unit as a Lewis acid. The known dichlorostiboranyl platinum complex (( o-(Ph2P)C6H4)2SbCl2)PtCl (1) reacts with TlF in the presence of acetonitrile (MeCN) and cyclohexyl isocyanide (CyNC) to afford the trifluorostiborane platinum complexes 2 ((( o-(Ph2P)C6H4)2SbF3)Pt-NCMe) and 3 ((( o-(Ph2P)C6H4)2SbF3)Pt-CNCy), respectively. Formation of these complexes, which results from a redistribution of the halide ligands about the dinuclear core, affects the nature of the Pt-Sb bond. The latter switches from covalent in 1 to polar covalent (or dative) in 2 and 3 where the trifluorostiborane moiety engages the platinum center in a Pt → Sb interaction. The polarity of the Pt-Sb bond can be modulated further by abstraction of an antimony-bound fluoride ligand using B(C6F5)3. These reactions afford the cationic complexes [(( o-(Ph2P)C6H4)2SbF2)Pt-NCMe]+ ([5]+) and [(( o-(Ph2P)C6H4)2SbF2)Pt-CNCy]+ ([6]+) which have been isolated as [BF(C6F5)3]- salts. These complexes possess a highly Lewis acidic difluorostibonium moiety, which exerts an intense draw on the electron density of the platinum center. As a result, the latter becomes significantly more electrophilic. In the case of [5]+, which contains a labile acetonitrile ligand, this increased electrophilicity translates into increased carbophilicity as reflected by the ability of this complex to promote enyne cyclization reactions. These results demonstrate that the coordination noninnocence of antimony Z-ligands can be used to adjust the catalytic activity of an adjoining metal center.
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Affiliation(s)
- Di You
- Department of Chemistry , Texas A&M University , College Station , Texas 77843-3255 , United States
| | - Haifeng Yang
- Department of Chemistry , Texas A&M University , College Station , Texas 77843-3255 , United States
| | - Srobona Sen
- 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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24
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Schuster JK, Muessig JH, Dewhurst RD, Braunschweig H. Reactions of Digallanes with p- and d-Block Lewis Bases: Adducts, Bis(gallyl) Complexes, and Naked Ga+as Ligand. Chemistry 2018; 24:9692-9697. [PMID: 29667760 DOI: 10.1002/chem.201801471] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 04/17/2018] [Indexed: 11/10/2022]
Affiliation(s)
- Julia K. Schuster
- 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
| | - Jonas H. Muessig
- 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
| | - 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
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25
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Hara N, Saito T, Semba K, Kuriakose N, Zheng H, Sakaki S, Nakao Y. Rhodium Complexes Bearing PAlP Pincer Ligands. J Am Chem Soc 2018; 140:7070-7073. [DOI: 10.1021/jacs.8b04199] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Naofumi Hara
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Teruhiko Saito
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Kazuhiko Semba
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
| | - Nishamol Kuriakose
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Hong Zheng
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Shigeyoshi Sakaki
- Fukui Institute for Fundamental Chemistry, Kyoto University, Sakyo-ku, Kyoto 606-8103, Japan
| | - Yoshiaki Nakao
- Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto 615-8510, Japan
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26
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Borthakur B, Das S, Phukan AK. Strategies toward realization of unsupported transition metal-boron donor-acceptor complexes: an insight from theory. Chem Commun (Camb) 2018; 54:4975-4978. [PMID: 29701733 DOI: 10.1039/c8cc02027b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pre-pyramidalization of the boron centre in the Lewis acidic groups is a prerequisite for the formation of unsupported donor-acceptor complexes with Lewis basic metal fragments such as [Pt(NHC)2].
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Affiliation(s)
- Bitupon Borthakur
- Department of Chemical Sciences, Tezpur University, Napam - 784 028, Assam, India.
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27
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Braunschweig H, Brunecker C, Dewhurst RD, Schneider C. Does Lewis basicity correlate with catalytic performance in zerovalent group 8 complexes? ZEITSCHRIFT FUR NATURFORSCHUNG SECTION B-A JOURNAL OF CHEMICAL SCIENCES 2018. [DOI: 10.1515/znb-2017-0193] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
A set of 18 zerovalent group 8 metal complexes of the form [ML
n
(CO)5−
n
] (M=Fe, Ru, Os; L=neutral donor; n=0–2) were screened for their catalytic performance in aldehyde hydrosilylation and olefin hydroboration reactions. Although none of the untested catalysts were found to perform better than the previously-published complex [Fe(CO)4(IMes)] (IMes=1,3-Dimesityliidazol-2-ylidene), the results suggest that the Lewis basicity of the metal complex does not play a critical role in the catalysis of these two reactions.
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Affiliation(s)
- Holger Braunschweig
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry and Catalysis with Boron , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany , Fax: +49-931 31-84623
| | - Carina Brunecker
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry and Catalysis with Boron , Julius-Maximilians-Universität Würzburg, Am Hubland , 97074 Würzburg , Germany
| | - Rian D. Dewhurst
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry and Catalysis with Boron , Julius-Maximilians-Universität Würzburg, Am Hubland , 97074 Würzburg , Germany
| | - Christoph Schneider
- Institute for Inorganic Chemistry and Institute for Sustainable Chemistry and Catalysis with Boron , Julius-Maximilians-Universität Würzburg, Am Hubland , 97074 Würzburg , Germany
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28
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Pahar S, Karak S, Pait M, Raj KV, Vanka K, Sen SS. Access to Silicon(II)– and Germanium(II)–Indium Compounds. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00093] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Sanjukta Pahar
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
| | - Suvendu Karak
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
- Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Moumita Pait
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - K. Vipin Raj
- Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Kumar Vanka
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
- Physical and Material Chemistry Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
| | - Sakya S. Sen
- Inorganic Chemistry and Catalysis Division, CSIR-National Chemical Laboratory, Dr. Homi Bhabha Road, Pashan, Pune 411008, India
- Academy of Scientific and Innovative Research (AcSIR), New Delhi 110020, India
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29
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Ríos P, Fouilloux H, Vidossich P, Díez J, Lledós A, Conejero S. Isolation of a Cationic Platinum(II) σ-Silane Complex. Angew Chem Int Ed Engl 2018; 57:3217-3221. [DOI: 10.1002/anie.201712791] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Revised: 01/15/2018] [Indexed: 11/11/2022]
Affiliation(s)
- Pablo Ríos
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC; Universidad de Sevilla; Avda. Américo Vespucio 49 41092 Sevilla Spain
| | - Hugo Fouilloux
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC; Universidad de Sevilla; Avda. Américo Vespucio 49 41092 Sevilla Spain
| | - Pietro Vidossich
- Departament de Química-Centro de Innovación en Química Avanzada (ORFEO-CINCA); Universitat Autònoma de Barcelona; Campus UAB 08193 Cerdanyola del Vallès Spain
- COBO Computational Bio-Organic Chemistry Bogotá; Department of Chemistry; Universidad de los Andes; Bogotá Colombia
| | - Josefina Díez
- Laboratorio de Compuestos Organometálicos y Catálisis; Unidad asociada al CSIC); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33006 Oviedo Spain
| | - Agustí Lledós
- Departament de Química-Centro de Innovación en Química Avanzada (ORFEO-CINCA); Universitat Autònoma de Barcelona; Campus UAB 08193 Cerdanyola del Vallès Spain
| | - Salvador Conejero
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC; Universidad de Sevilla; Avda. Américo Vespucio 49 41092 Sevilla Spain
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30
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Ríos P, Fouilloux H, Vidossich P, Díez J, Lledós A, Conejero S. Isolation of a Cationic Platinum(II) σ-Silane Complex. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201712791] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Affiliation(s)
- Pablo Ríos
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC; Universidad de Sevilla; Avda. Américo Vespucio 49 41092 Sevilla Spain
| | - Hugo Fouilloux
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC; Universidad de Sevilla; Avda. Américo Vespucio 49 41092 Sevilla Spain
| | - Pietro Vidossich
- Departament de Química-Centro de Innovación en Química Avanzada (ORFEO-CINCA); Universitat Autònoma de Barcelona; Campus UAB 08193 Cerdanyola del Vallès Spain
- COBO Computational Bio-Organic Chemistry Bogotá; Department of Chemistry; Universidad de los Andes; Bogotá Colombia
| | - Josefina Díez
- Laboratorio de Compuestos Organometálicos y Catálisis; Unidad asociada al CSIC); Departamento de Química Orgánica e Inorgánica; Universidad de Oviedo; 33006 Oviedo Spain
| | - Agustí Lledós
- Departament de Química-Centro de Innovación en Química Avanzada (ORFEO-CINCA); Universitat Autònoma de Barcelona; Campus UAB 08193 Cerdanyola del Vallès Spain
| | - Salvador Conejero
- Instituto de Investigaciones Químicas (IIQ); Departamento de Química Inorgánica, Centro de Innovación en Química Avanzada (ORFEO-CINCA), CSIC; Universidad de Sevilla; Avda. Américo Vespucio 49 41092 Sevilla Spain
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31
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Brewster TP, Nguyen TH, Li Z, Eckenhoff WT, Schley ND, DeYonker NJ. Synthesis and Characterization of Heterobimetallic Iridium-Aluminum and Rhodium-Aluminum Complexes. Inorg Chem 2018; 57:1148-1157. [PMID: 29356511 DOI: 10.1021/acs.inorgchem.7b02601] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
We demonstrate the synthesis and characterization of a new class of late-transition-metal-aluminum heterobimetallic complexes via a novel synthetic pathway. Complexes of this type are exceedingly rare. Joint experimental and theoretical data sheds light on the electronic effect of ligands containing aluminum moieties on late-transition-metal complexes.
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Affiliation(s)
- Timothy P Brewster
- Department of Chemistry, The University of Memphis , 3744 Walker Avenue, Smith Chemistry Building, Memphis, Tennessee 38152, United States
| | - Tan H Nguyen
- Department of Chemistry, The University of Memphis , 3744 Walker Avenue, Smith Chemistry Building, Memphis, Tennessee 38152, United States
| | - Zhongjing Li
- Department of Chemistry, The University of Memphis , 3744 Walker Avenue, Smith Chemistry Building, Memphis, Tennessee 38152, United States
| | - William T Eckenhoff
- Department of Chemistry, Rhodes College , 2000 N. Parkway, Memphis, Tennessee 38112, United States
| | - Nathan D Schley
- Department of Chemistry, Vanderbilt University , Nashville, Tennessee 37235, United States
| | - Nathan J DeYonker
- Department of Chemistry, The University of Memphis , 3744 Walker Avenue, Smith Chemistry Building, Memphis, Tennessee 38152, United States
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32
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You D, Gabbaï FP. Unmasking the Catalytic Activity of a Platinum Complex with a Lewis Acidic, Non-innocent Antimony Ligand. J Am Chem Soc 2017; 139:6843-6846. [PMID: 28485973 DOI: 10.1021/jacs.7b03287] [Citation(s) in RCA: 66] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
With the view of developing self-activating electrophilic catalysts, we are now investigating complexes with a Lewis acidic moiety in the immediate vicinity of the transition metal center. Toward this end, we have synthesized a platinum complex in which the metal is connected to a Lewis acidic bis(triflato)stiboranyl ligand. This complex, ((o-(Ph2P)C6H4)2SbOTf2)PtCl (2), which was obtained by treatment of ((o-(Ph2P)C6H4)2SbCl2)PtCl (1) with 2 equiv of AgOTf, is surprisingly air stable. Yet, it promptly reacts with cyclohexylisocyanide to afford the dicationic chlorostibine complex [((o-(Ph2P)C6H4)2SbCl)PtCNCy]2+ ([3]2+) as a bis-triflate salt. Formation of [3]2+ occurs through abstraction of the platinum-bound chloride ligand by the adjacent Lewis acidic antimony center. This halide migration reaction leads to activation of the platinum center. In turn, 2 behaves as a self-activating catalyst in reactions involving alkynes and readily mediates both enyne cyclization and intramolecular hydroarylation reactions, at room temperature, without addition of a chloride abstracting reagent. These results demonstrate that the coordination non-innocence of antimony ligands can be exploited for the purpose of electrophilic catalysis.
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Affiliation(s)
- Di You
- Department of Chemistry, Texas A&M University , College Station, Texas 77843, United States
| | - François P Gabbaï
- Department of Chemistry, Texas A&M University , College Station, Texas 77843, United States
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33
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Agnew DW, Moore CE, Rheingold AL, Figueroa JS. Comparison of nucleophilic- and radical-based routes to the formation of manganese-main group element single bonds. Dalton Trans 2017; 46:6700-6707. [DOI: 10.1039/c7dt01102d] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
One-electron activation of main-group substrates by a stable manganese metalloradical provides a facile pathway to Mn-element single bonds.
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Affiliation(s)
- Douglas W. Agnew
- Department of Chemistry and Biochemistry
- University of California
- La Jolla
- USA
| | - Curtis E. Moore
- Department of Chemistry and Biochemistry
- University of California
- La Jolla
- USA
| | | | - Joshua S. Figueroa
- Department of Chemistry and Biochemistry
- University of California
- La Jolla
- USA
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34
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Bertermann R, Böhnke J, Braunschweig H, Dewhurst RD, Kupfer T, Muessig JH, Pentecost L, Radacki K, Sen SS, Vargas A. Dynamic, Reversible Oxidative Addition of Highly Polar Bonds to a Transition Metal. J Am Chem Soc 2016; 138:16140-16147. [PMID: 27960339 DOI: 10.1021/jacs.6b10609] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The combination of Pt0 complexes and indium trihalides leads to compounds that form equilibria in solution between their In-X oxidative addition (OA) products (PtII indyl complexes) and their metal-only Lewis pair (MOLP) isomers (LnPt→InX3). The position of the equilibria can be altered reversibly by changing the solvent, while the equilibria can be reversibly and irreversibly driven toward the MOLP products by addition of further donor ligands. The results mark the first observation of an equilibrium between MOLP and OA isomers, as well as the most polar bond ever observed to undergo reversible oxidative addition to a metal complex. In addition, we present the first structural characterization of MOLP and oxidative addition isomers of the same compound. The relative energies of the MOLP and OA isomers were calculated by DFT methods, and the possibility of solvent-mediated isomerization is discussed.
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Affiliation(s)
| | | | | | | | | | | | - Leanne Pentecost
- Department of Chemistry, School of Life Sciences, University of Sussex , Brighton, Sussex BN1 9QJ, United Kingdom
| | | | - Sakya S Sen
- Catalysis Division, CSIR - National Chemical Laboratory , Pashan, Pune 411008, India
| | - Alfredo Vargas
- Department of Chemistry, School of Life Sciences, University of Sussex , Brighton, Sussex BN1 9QJ, United Kingdom
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35
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Hamdaoui M, Ney M, Sarda V, Karmazin L, Bailly C, Sieffert N, Dohm S, Hansen A, Grimme S, Djukic JP. Evidence of a Donor–Acceptor (Ir–H)→SiR3 Interaction in a Trapped Ir(III) Silane Catalytic Intermediate. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00248] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mustapha Hamdaoui
- Institut
de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Marjolaine Ney
- Institut
de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Vivien Sarda
- Institut
de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Lydia Karmazin
- Institut
de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Corinne Bailly
- Institut
de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
| | - Nicolas Sieffert
- Université Grenoble Alpes & CNRS, DCM UMR 5250, F-38000 Grenoble, France
| | - Sebastian Dohm
- Mulliken
Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße
4, D-53115 Bonn, Germany
| | - Andreas Hansen
- Mulliken
Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße
4, D-53115 Bonn, Germany
| | - Stefan Grimme
- Mulliken
Center for Theoretical Chemistry, Institut für Physikalische
und Theoretische Chemie, Universität Bonn, Beringstraße
4, D-53115 Bonn, Germany
| | - Jean-Pierre Djukic
- Institut
de Chimie de Strasbourg, UMR 7177 CNRS, Université de Strasbourg, 4 rue Blaise Pascal, F-67000 Strasbourg, France
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36
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Swarnakar AK, Ferguson MJ, McDonald R, Rivard E. Transition metal-mediated donor-acceptor coordination of low-oxidation state Group 14 element halides. Dalton Trans 2016; 45:6071-8. [PMID: 26373599 DOI: 10.1039/c5dt03018h] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reactivity of tungsten carbonyl adducts of Group 14 element (Ge, Sn and Pb) dihalides towards the metal-based donors (η(5)-C5H5)Rh(PMe2Ph)2 and Pt(PCy3)2 was examined. When (η(5)-C5H5)Rh(PMe2Ph)2 was treated with the Lewis acid supported Ge(ii) complex, THF·GeCl2·W(CO)5, cyclopentadienyl ring activation occurred, whereas the analogous Lewis acidic units SnCl2·W(CO)5 and PbCl2 form direct adducts with the Rh complex to yield Rh-Sn and Rh-Pb dative bonds. Attempts to prepare metal coordinated element(ii) hydrides by adding hydride sources to the above mentioned rhodium-E(ii) halide complexes were unsuccessful; in each case insoluble products were formed along with regeneration of free (η(5)-C5H5)Rh(PMe2Ph)2. In a parallel study, ECl2·W(CO)5 (E = Ge or Sn) groups were shown to participate in E-Cl oxidation addition chemistry with (Cy3P)2Pt to give the formal Pt(ii) complexes ClPt(PCy3)2ECl·W(CO)5.
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Affiliation(s)
- Anindya K Swarnakar
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2.
| | - Michael J Ferguson
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2.
| | - Robert McDonald
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2.
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Drive, Edmonton, Alberta, Canada T6G 2G2.
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37
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Devillard M, Declercq R, Nicolas E, Ehlers AW, Backs J, Saffon-Merceron N, Bouhadir G, Slootweg JC, Uhl W, Bourissou D. A Significant but Constrained Geometry Pt→Al Interaction: Fixation of CO2 and CS2, Activation of H2 and PhCONH2. J Am Chem Soc 2016; 138:4917-26. [DOI: 10.1021/jacs.6b01320] [Citation(s) in RCA: 115] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Marc Devillard
- Université
de Toulouse, UPS, LHFA, 118 route de
Narbonne, 31062 Toulouse, France
- CNRS, LHFA, UMR
5069, 31062 Toulouse, France
| | - Richard Declercq
- Université
de Toulouse, UPS, LHFA, 118 route de
Narbonne, 31062 Toulouse, France
- CNRS, LHFA, UMR
5069, 31062 Toulouse, France
| | - Emmanuel Nicolas
- Department
of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Andreas W. Ehlers
- Department
of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Jana Backs
- Institut
für Anorganische und Analytische Chemie der Westfälischen, Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster, Germany
| | - Nathalie Saffon-Merceron
- Université Paul Sabatier, Institut de Chimie de Toulouse
(FR 2599), 118 route de
Narbonne, 31062 Toulouse cedex 9, France
| | - Ghenwa Bouhadir
- Université
de Toulouse, UPS, LHFA, 118 route de
Narbonne, 31062 Toulouse, France
- CNRS, LHFA, UMR
5069, 31062 Toulouse, France
| | - J. Chris Slootweg
- Department
of Chemistry and Pharmaceutical Sciences, VU University Amsterdam, De Boelelaan 1083, 1081 HV Amsterdam, The Netherlands
| | - Werner Uhl
- Institut
für Anorganische und Analytische Chemie der Westfälischen, Wilhelms-Universität Münster, Corrensstrasse 30, 48149 Münster, Germany
| | - Didier Bourissou
- Université
de Toulouse, UPS, LHFA, 118 route de
Narbonne, 31062 Toulouse, France
- CNRS, LHFA, UMR
5069, 31062 Toulouse, France
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38
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Coordination of Lewis Acids to Transition Metals: Z-Type Ligands. THE CHEMICAL BOND III 2016. [DOI: 10.1007/430_2015_201] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
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39
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Durango-García CJ, Jalife S, Cabellos JL, Martínez SH, Jimenez-Halla JOC, Pan S, Merino G, Montiel-Palma V. Back to basics: identification of reaction intermediates in the mechanism of a classic ligand substitution reaction on Vaska's complex. RSC Adv 2016. [DOI: 10.1039/c5ra20969b] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
The mechanism of methylation of Vaska's complextrans-[ClIr(CO)(PPh3)2] by trimethylgallium was studied and the identification of the spectroscopically detected intermediates was achieved with the aid of computational methods.
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Affiliation(s)
- Clara J. Durango-García
- Centro de Investigaciones Químicas
- Universidad Autónoma del Estado de Morelos
- Cuernavaca
- Mexico
- Facultad de Ciencias
| | - Said Jalife
- Departamento de Física Aplicada
- CINVESTAV Unidad Mérida
- Mérida 97310
- Mexico
| | - José Luis Cabellos
- Departamento de Física Aplicada
- CINVESTAV Unidad Mérida
- Mérida 97310
- Mexico
| | - Saul H. Martínez
- Departamento de Física Aplicada
- CINVESTAV Unidad Mérida
- Mérida 97310
- Mexico
| | | | - Sudip Pan
- Department of Chemistry and Center for Theoretical Studies
- Indian Institute of Technology Kharagpur
- India
| | - Gabriel Merino
- Departamento de Física Aplicada
- CINVESTAV Unidad Mérida
- Mérida 97310
- Mexico
| | - Virginia Montiel-Palma
- Centro de Investigaciones Químicas
- Universidad Autónoma del Estado de Morelos
- Cuernavaca
- Mexico
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40
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Mingos DMP. The Chemical Bond: Lewis and Kossel’s Landmark Contribution. THE CHEMICAL BOND I 2016. [DOI: 10.1007/430_2015_203] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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41
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Wächtler E, Gericke R, Brendler E, Gerke B, Langer T, Pöttgen R, Zhechkov L, Heine T, Wagler J. Group 10–group 14 metal complexes [E–TM]IV: the role of the group 14 site as an L, X and Z-type ligand. Dalton Trans 2016; 45:14252-64. [DOI: 10.1039/c6dt01621a] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
The group 14 element's ligand role in N,S-bridged transition metal complexes was shown to depend on both atoms’ substitution patterns.
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Affiliation(s)
- Erik Wächtler
- TU Bergakademie Freiberg
- Institut für Anorganische Chemie
- 09596 Freiberg
- Germany
| | - Robert Gericke
- TU Bergakademie Freiberg
- Institut für Anorganische Chemie
- 09596 Freiberg
- Germany
| | - Erica Brendler
- TU Bergakademie Freiberg
- Institut für Analytische Chemie
- 09596 Freiberg
- Germany
| | - Birgit Gerke
- Westfälische Wilhelms-Universität Münster
- Institut für Anorganische und Analytische Chemie
- 48149 Münster
- Germany
| | - Thorsten Langer
- Westfälische Wilhelms-Universität Münster
- Institut für Anorganische und Analytische Chemie
- 48149 Münster
- Germany
| | - Rainer Pöttgen
- Westfälische Wilhelms-Universität Münster
- Institut für Anorganische und Analytische Chemie
- 48149 Münster
- Germany
| | - Lyuben Zhechkov
- Universität Leipzig
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie
- 04103 Leipzig
- Germany
| | - Thomas Heine
- Universität Leipzig
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie
- 04103 Leipzig
- Germany
| | - Jörg Wagler
- TU Bergakademie Freiberg
- Institut für Anorganische Chemie
- 09596 Freiberg
- Germany
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42
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Braunschweig H, Brunecker C, Dewhurst RD, Schneider C, Wennemann B. Lewis Acid Binding and Transfer as a Versatile Experimental Gauge of the Lewis Basicity of Fe
0
, Ru
0
, and Pt
0
Complexes. Chemistry 2015; 21:19195-201. [DOI: 10.1002/chem.201503536] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2015] [Indexed: 11/05/2022]
Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany)
| | - Carina Brunecker
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany)
| | - Rian D. Dewhurst
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany)
| | - Christoph Schneider
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany)
| | - Benedikt Wennemann
- Institut für Anorganische Chemie, Julius‐Maximilians‐Universität Würzburg, Am Hubland, 97074 Würzburg (Germany)
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43
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Molecular complexes of group 13 element trihalides, pentafluorophenyl derivatives and Lewis superacids. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2015.02.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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44
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Mingos DMP. A theoretical analysis of ambivalent and ambiphilic Lewis acid/bases with symmetry signatures. Coord Chem Rev 2015. [DOI: 10.1016/j.ccr.2014.11.009] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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45
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Krebs KM, Freitag S, Schubert H, Gerke B, Pöttgen R, Wesemann L. Chemistry of Stannylene-Based Lewis Pairs: Dynamic Tin Coordination Switching Between Donor and Acceptor Character. Chemistry 2015; 21:4628-38. [DOI: 10.1002/chem.201406486] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2014] [Indexed: 11/11/2022]
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46
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Abstract
Experimentally known adducts of SO2 with transition metal complexes have distinct geometries. In the present paper, we demonstrate by a bonding analysis that this is a direct consequence of sulfur dioxide acting as an acceptor in one set, square-planar complexes of d(8) and linear two-coordinated complexes of d(10) transition metals, and as a donor with other compounds, well-known paddle-wheel [Rh2(O2CCF3)4] and square-pyramidal [M(CO)5] (M = Cr, W) complexes. Bonding energy computations were augmented by the natural bond orbital (NBO) analysis and energy decomposition analysis (EDA). When the SO2 molecule acts as an acceptor, bonding in the bent coordination mode to the axial position of the d(8) or the d(10) metal center, the dominant contributor to the bonding is LAO(S) (Lewis Acidic Orbital, mainly composed of the px-orbital of the S atom) as an acceptor, while a dz(2) orbital centered on the metal is the corresponding donor. In contrast, the distinct collinear (or linear) coordination of the SO2 bound at the axial position of [Rh2(O2CCF3)4] and/or [M(CO)5] is associated with a dominant donation from a lone pair localized on the sulfur atom, σ*(Rh-Rh) and/or empty LAO(M) (mainly composed of the dz(2) orbital of the metal), respectively, acting as an acceptor orbital. The donor/acceptor capabilities of the SO2 molecule were also checked in adducts with organic Lewis acids (BH3, B(CF3)3) and Lewis bases (NH3, N(CH3)3, N-heterocyclic carbene).
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Affiliation(s)
- Jingbai Li
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, Chicago, Illinois 60616, USA.
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47
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Braunschweig H, Celik MA, Dewhurst RD, Heid M, Hupp F, Sen SS. Stepwise isolation of low-valent, low-coordinate Sn and Pb mono- and dications in the coordination sphere of platinum. Chem Sci 2015; 6:425-435. [PMID: 28936301 PMCID: PMC5587986 DOI: 10.1039/c4sc02948h] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Accepted: 10/15/2014] [Indexed: 11/21/2022] Open
Abstract
Synthetic access to low-coordinate Pb mono- and dications is in general impeded due to their poor solubility and highly electrophilic nature. However, the electrophilicity of these cations can be tamed by attaching them to electron-rich transition metals. Following this principle we have isolated low-valent Pb mono- ([(Cy3P)2Pt-PbCl]2[AlCl4]2, 8a) and dications ([(Cy3P)2Pt(Pb)][AlCl4]2, 11) in the coordination sphere of platinum. The same approach then has been implemented for the isolation of analogous low-valent Sn mono- (7a) and dications (10). An energy decomposition analysis (EDA-NOCV) was performed to investigate the nature of Pt-Pb and Pb-Cl bonding in [(Cy3P)2Pt(PbCl2)] (2), 8a and 11. The results show that the Pt-Pb bonds in 8a and 11 are electron-sharing in nature, whereas that of the precursor 2 is a dative bond. The breakdown of attractive interactions in 2, 8a and 11 reveals that the ionic interactions in the analyzed Pt-Pb and Pb-Cl bonds are always stronger than the covalent interactions, except for the Pb-Cl bond in 8a. The calculated D3 dispersion energies show that dispersion interactions play a key role in the thermodynamic stability of 2, 8a and 11.
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Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany . http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/ ;
| | - Mehmet Ali Celik
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany . http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/ ;
| | - Rian D Dewhurst
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany . http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/ ;
| | - Magdalena Heid
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany . http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/ ;
| | - Florian Hupp
- Institut für Anorganische Chemie , Julius-Maximilians-Universität Würzburg , Am Hubland , 97074 Würzburg , Germany . http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/ ;
| | - Sakya S Sen
- CSIR-National Chemical Laboratory , Pashan , Pune 411008 , India
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48
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Cowie BE, Tsao FA, Emslie DJH. Synthesis and Platinum Complexes of an Alane-Appended 1,1′-Bis(phosphino)ferrocene Ligand. Angew Chem Int Ed Engl 2014; 54:2165-9. [DOI: 10.1002/anie.201410828] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2014] [Indexed: 11/08/2022]
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49
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Cowie BE, Tsao FA, Emslie DJH. Synthesis and Platinum Complexes of an Alane-Appended 1,1′-Bis(phosphino)ferrocene Ligand. Angew Chem Int Ed Engl 2014. [DOI: 10.1002/ange.201410828] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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50
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Braunschweig H, Dewhurst RD, Hupp F, Wolf J. Unprecedented Oxidative Addition and Metal-Only Lewis Pair Chemistry of Antimony Trihalides. Chemistry 2014; 21:1860-2. [PMID: 25491232 DOI: 10.1002/chem.201405867] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2014] [Indexed: 11/10/2022]
Affiliation(s)
- Holger Braunschweig
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074 Würzburg (Germany) http://www-anorganik.chemie.uni-wuerzburg.de/Braunschweig/.
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