1
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Authesserre U, Swamy VSVSN, Saffon-Merceron N, Baceiredo A, Kato T, Maerten E. New Insight into the Reactivity of S,S-Bis-ylide. Molecules 2023; 28:molecules28083295. [PMID: 37110528 PMCID: PMC10142965 DOI: 10.3390/molecules28083295] [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: 03/29/2023] [Revised: 04/04/2023] [Accepted: 04/06/2023] [Indexed: 04/29/2023] Open
Abstract
The present work focuses on the reactivity of S,S-bis-ylide 2, which presents a strong nucleophilic character, as evidenced by reactions with methyl iodide and CO2, affording C-methylated salts 3 and betaine 4, respectively. The derivatization of betaine 4 affords the corresponding ester derivative 6, which is fully characterized by using NMR spectroscopy and X-ray diffraction analysis. Furthermore, an original reaction with phosphenium ions leads to the formation of a transient push-pull phosphino(sulfonio)carbene 8, which rearranges to give stabilized sulfonium ylide derivative 7.
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Affiliation(s)
- Ugo Authesserre
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 Route de Narbonne, 31062 Toulouse, France
| | - V S V S N Swamy
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 Route de Narbonne, 31062 Toulouse, France
| | - Nathalie Saffon-Merceron
- Université de Toulouse, UPS, and CNRS, ICT UAR2599 118 Route de Narbonne, 31062 Toulouse, France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 Route de Narbonne, 31062 Toulouse, France
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 Route de Narbonne, 31062 Toulouse, France
| | - Eddy Maerten
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 118 Route de Narbonne, 31062 Toulouse, France
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2
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Tipker RM, Muldoon JA, Pham DH, Varga BR, Hughes RP, Glueck DS, Balaich GJ, Rheingold AL. Configurational Lability at Tetrahedral Phosphorus: syn/anti-Isomerization of a P-Stereogenic Phosphiranium Cation by Intramolecular Epimerization at Phosphorus. Angew Chem Int Ed Engl 2022; 61:e202110753. [PMID: 34755431 DOI: 10.1002/anie.202110753] [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: 08/10/2021] [Indexed: 11/05/2022]
Abstract
Tetrahedral main-group compounds are normally configurationally stable, but P-epimerization of the chiral phosphiranium cations syn- or anti-[Mes*P(Me)CH2 CHPh][OTf] (Mes*=2,4,6-(t-Bu)3 C6 H2 ) occurred under mild conditions at 60 °C in CD2 Cl2 , resulting in isomerization to give a syn-enriched equilibrium mixture. Ion exchange with excess [NBu4 ][Δ-TRISPHAT] (Δ-TRISPHAT=Δ-P(o-C6 Cl4 O2 )3 ) followed by chromatography on silica removed [NBu4 ][OTf] and gave mixtures of syn- and anti-[Mes*P(Me)CH2 CHPh][Δ-TRISPHAT]⋅x[NBu4 ][Δ-TRISPHAT]. NMR spectroscopy showed that isomerization proceeded with epimerization at P and retention at C. DFT calculations are consistent with a mechanism involving P-C cleavage to yield a hyperconjugation-stabilized carbocation, pyramidal inversion promoted by σ-interaction of the P lone pair with the neighboring β-carbocation, and ring closure with inversion of configuration at P.
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Affiliation(s)
- Ryan M Tipker
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Jake A Muldoon
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Daniel H Pham
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Balazs R Varga
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Russell P Hughes
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - David S Glueck
- 6128 Burke Laboratory, Department of Chemistry, Dartmouth College, Hanover, NH, 03755, USA
| | - Gary J Balaich
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
| | - Arnold L Rheingold
- Department of Chemistry, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA, 92093, USA
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3
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Tipker RM, Muldoon JA, Pham DH, Varga BR, Hughes RP, Glueck DS, Balaich GJ, Rheingold AL. Configurational Lability at Tetrahedral Phosphorus:
syn/anti
‐Isomerization of a P‐Stereogenic Phosphiranium Cation by Intramolecular Epimerization at Phosphorus. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202110753] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ryan M. Tipker
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Jake A. Muldoon
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Daniel H. Pham
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Balazs R. Varga
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Russell P. Hughes
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - David S. Glueck
- 6128 Burke Laboratory Department of Chemistry Dartmouth College Hanover NH 03755 USA
| | - Gary J. Balaich
- Department of Chemistry University of California, San Diego 9500 Gilman Drive La Jolla CA 92093 USA
| | - Arnold L. Rheingold
- Department of Chemistry University of California, San Diego 9500 Gilman Drive La Jolla CA 92093 USA
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4
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Normand AT, Sosa Carrizo ED, Magnoux C, Lobato E, Cattey H, Richard P, Brandès S, Devillers CH, Romieu A, Le Gendre P, Fleurat-Lessard P. Reappraising Schmidpeter's bis(iminophosphoranyl)phosphides: coordination to transition metals and bonding analysis. Chem Sci 2020; 12:253-269. [PMID: 34163594 PMCID: PMC8178813 DOI: 10.1039/d0sc04736h] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The synthesis and characterization of a range of bis(iminophosphoranyl)phosphide (BIPP) group 4 and coinage metals complexes is reported. BIPP ligands bind group 4 metals in a pseudo fac-fashion, and the central phosphorus atom enables the formation of d0–d10 heterobimetallic complexes. Various DFT computational tools (including AIM, ELF and NCI) show that the phosphorus–metal interaction is either electrostatic (Ti) or dative (Au, Cu). A bridged homobimetallic Cu–Cu complex was also prepared and its spectroscopic properties were investigated. The theoretical analysis of the P–P bond in BIPP complexes reveals that (i) BIPP are closely related to ambiphilic triphosphenium (TP) cations; (ii) the P–P bonds are normal covalent (i.e. not dative) in both BIPP and TP. The synthesis, characterization and computational analysis of a range of bis(iminophosphoranyl)phosphide (BIPP) group 4 and coinage metals complexes is reported. White phosphorus was used to install the central phosphorus atom.![]()
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Affiliation(s)
- Adrien T Normand
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - E Daiann Sosa Carrizo
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Corentin Magnoux
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Esteban Lobato
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Hélène Cattey
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Philippe Richard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Stéphane Brandès
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Charles H Devillers
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Anthony Romieu
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Pierre Le Gendre
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
| | - Paul Fleurat-Lessard
- Institut de Chimie Moléculaire de l'Université de Bourgogne (ICMUB), UMR 6302, CNRS, Université de Bourgogne 9, Avenue Alain Savary 21000 Dijon France
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5
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Fustier-Boutignon M, Nebra N, Mézailles N. Geminal Dianions Stabilized by Main Group Elements. Chem Rev 2019; 119:8555-8700. [PMID: 31194516 DOI: 10.1021/acs.chemrev.8b00802] [Citation(s) in RCA: 41] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
This review is dedicated to the chemistry of stable and isolable species that bear two lone pairs at the same C center, i.e., geminal dianions, stabilized by main group elements. Three cases can thus be considered: the geminal-dilithio derivative, for which the two substituents at C are neutral, the yldiide derivatives, for which one substituent is neutral while the other is charged, and finally the geminal bisylides, for which the two substituents are positively charged. In this review, the syntheses and electronic structures of the geminal dianions are presented, followed by the studies dedicated to their reactivity toward organic substrates and finally to their coordination chemistry and applications.
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Affiliation(s)
- Marie Fustier-Boutignon
- UPS, CNRS, LHFA UMR 5069 , Université de Toulouse , 118 Route de Narbonne , 31062 Toulouse , France
| | - Noel Nebra
- UPS, CNRS, LHFA UMR 5069 , Université de Toulouse , 118 Route de Narbonne , 31062 Toulouse , France
| | - Nicolas Mézailles
- UPS, CNRS, LHFA UMR 5069 , Université de Toulouse , 118 Route de Narbonne , 31062 Toulouse , France
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6
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Scharf LT, Gessner VH. Metalated Ylides: A New Class of Strong Donor Ligands with Unique Electronic Properties. Inorg Chem 2017; 56:8599-8607. [PMID: 28240888 PMCID: PMC5549244 DOI: 10.1021/acs.inorgchem.7b00099] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2017] [Indexed: 11/29/2022]
Abstract
The development and design of new ligand systems with special donor properties has been essential for crucial advances made in main-group-element and transition-metal chemistry over the years. This Forum Article focuses on metalated ylides as novel ligand systems. These anionic congeners of bisylides possess likewise two lone pairs of electrons at the central carbon atom and can thus function as X,L-type ligands with strong donor abilities. This article highlights recent efforts in the isolation and application of metalated ylides with a focus on work from this laboratory. We summarize structural and electronic properties and their use in organic synthesis as well as main-group-element and transition-metal chemistry.
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Affiliation(s)
- Lennart T. Scharf
- Chair of Inorganic Chemistry II, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
| | - Viktoria H. Gessner
- Chair of Inorganic Chemistry II, Ruhr-Universität Bochum, Universitätsstraße 150, 44801 Bochum, Germany
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7
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Garduno-Alva A, Lenk R, Escudié Y, González ML, Bousquet L, Saffon-Merceron N, Toledano CA, Bagan X, Branchadell V, Maerten E, Baceiredo A. Synthesis, Structure, and Reactivity of a Stable Phosphonium-Sulfinyl Yldiide. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700648] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Azucena Garduno-Alva
- Université de Toulouse; UPS, and; CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse France
| | - Romaric Lenk
- Université de Toulouse; UPS, and; CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse France
| | - Yannick Escudié
- Université de Toulouse; UPS, and; CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse France
| | - Mariana Lozano González
- Université de Toulouse; UPS, and; CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse France
| | - Laura Bousquet
- Université de Toulouse; UPS, and; CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse France
| | | | - Cecilio Alvarez Toledano
- Instituto de Química-UNAM; Circuito Exterior; Ciudad Universitaria C.P. 04510 Coyoacán Ciudad de México México
| | - Xavier Bagan
- Departament de Quimica; Universitat Autonoma de Barcelona; 08193 Bellaterra Spain
| | - Vicenç Branchadell
- Departament de Quimica; Universitat Autonoma de Barcelona; 08193 Bellaterra Spain
| | - Eddy Maerten
- Université de Toulouse; UPS, and; CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse France
| | - Antoine Baceiredo
- Université de Toulouse; UPS, and; CNRS, LHFA UMR 5069; 118 route de Narbonne 31062 Toulouse France
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8
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Troadec T, Wasano T, Lenk R, Baceiredo A, Saffon-Merceron N, Hashizume D, Saito Y, Nakata N, Branchadell V, Kato T. Donor-Stabilized Silylene/Phosphine-Supported Carbon(0) Center with High Electron Density. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702858] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Affiliation(s)
- Thibault Troadec
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | - Tatsuya Wasano
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | - Romaric Lenk
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
| | | | - Daisuke Hashizume
- Materials Characterization Support Unit; RIKEN Center for Emergent Matter Science (CEMS); Wako Saitama 351-0198 Japan
| | - Yosuke Saito
- Department of Chemistry, Graduate School of Science and Engineering Departament; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering Departament; Saitama University; Shimo-okubo, Sakura-ku Saitama 338-8570 Japan
| | - Vicenç Branchadell
- Departament de Química; Universitat Autònoma de Barcelona; 08193 Bellaterra Spain
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069; 31062 Toulouse France
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9
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Troadec T, Wasano T, Lenk R, Baceiredo A, Saffon-Merceron N, Hashizume D, Saito Y, Nakata N, Branchadell V, Kato T. Donor-Stabilized Silylene/Phosphine-Supported Carbon(0) Center with High Electron Density. Angew Chem Int Ed Engl 2017; 56:6891-6895. [PMID: 28474846 DOI: 10.1002/anie.201702858] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Indexed: 11/08/2022]
Abstract
An isolable donor-stabilized silavinylidene phosphorane was synthesized. This molecule, which can also be regarded as a new carbon(0) complex featuring a phosphine and a donor-stabilized silylene ligand, presents a central carbon atom with a remarkably high electron density (-1.82). Furthermore, the experimental electron-density study of this compound demonstrates the delocalization of the σ-lone pair at the central carbon atom toward the silicon center, a feature which is remarkably different from electronic situation of other bent-allene-type molecules. This result clearly demonstrates the powerful electron-donating ability of donor-stabilized silylene ligands, as well as their excellent electron-acceptor properties.
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Affiliation(s)
- Thibault Troadec
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Tatsuya Wasano
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Romaric Lenk
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Antoine Baceiredo
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
| | - Nathalie Saffon-Merceron
- Université de Toulouse, UPS, and CNRS, ICT FR2599, 118 route de Narbonne, 31062, Toulouse, France
| | - Daisuke Hashizume
- Materials Characterization Support Unit, RIKEN Center for Emergent Matter Science (CEMS), Wako, Saitama, 351-0198, Japan
| | - Yosuke Saito
- Department of Chemistry, Graduate School of Science and Engineering Departament, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering Departament, Saitama University, Shimo-okubo, Sakura-ku, Saitama, 338-8570, Japan
| | - Vicenç Branchadell
- Departament de Química, Universitat Autònoma de Barcelona, 08193, Bellaterra, Spain
| | - Tsuyoshi Kato
- Université de Toulouse, UPS, and CNRS, LHFA UMR 5069, 31062, Toulouse, France
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10
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Scharf LT, Andrada DM, Frenking G, Gessner VH. The Bonding Situation in Metalated Ylides. Chemistry 2017; 23:4422-4434. [PMID: 28121371 PMCID: PMC5396261 DOI: 10.1002/chem.201605997] [Citation(s) in RCA: 71] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Indexed: 11/07/2022]
Abstract
Quantum chemical calculations have been carried out to study the electronic structure of metalated ylides particularly in comparison to their neutral analogues, the bisylides. A series of compounds of the general composition Ph3 P-C-L with L being either a neutral or an anionic ligand were analyzed and the impact of the nature of the substituent L and the total charge on the electronics and bonding situation was studied. The charge at the carbon atom as well as the dissociation energies, bond lengths, and Wiberg bond indices strongly depend on the nature of L. Here, not only the charge of the ligand but also the position of the charge within the ligand backbone plays an important role. Independent of the substitution pattern, the NBO analysis reveals the preference of unsymmetrical bonding situations (P=C-L or P-C=L) for almost all compounds. However, Lewis structures with two lone-pair orbitals at the central carbon atom are equally valid for the description of the bonding situation. This is confirmed by the pronounced lone-pair character of the frontier orbitals. Energy decomposition analysis mostly reveals the preference of several bonding situations, mostly with dative and ylidic electron-sharing bonds (e.g., P→C- -L). In general, the anionic systems show a higher preference of the ylidic bonding situations compared to the neutral analogues. However, in most of the cases different resonance structures have to be considered for the description of the "real" bonding situation.
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Affiliation(s)
- Lennart T. Scharf
- Lehrstuhl für Anorganische Chemie IIRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
| | - Diego M. Andrada
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Strasse35032MarburgGermany
| | - Gernot Frenking
- Fachbereich ChemiePhilipps-Universität MarburgHans-Meerwein-Strasse35032MarburgGermany
| | - Viktoria H. Gessner
- Lehrstuhl für Anorganische Chemie IIRuhr-Universität BochumUniversitätsstrasse 15044801BochumGermany
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11
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Hermann M, Frenking G. Carbones as Ligands in Novel Main-Group Compounds E[C(NHC) 2 ] 2 (E=Be, B + , C 2+ , N 3+ , Mg, Al + , Si 2+ , P 3+ ): A Theoretical Study. Chemistry 2017; 23:3347-3356. [PMID: 28004870 DOI: 10.1002/chem.201604801] [Citation(s) in RCA: 79] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 12/21/2016] [Indexed: 11/10/2022]
Abstract
Quantum chemical calculations of the main-group compounds E[C(NHCMe )2 ]2 (E=Be, B+ , C2+ , N3+ , Mg, Al+ , Si2+ , P3+ ) have been carried out using density functional theory at the BP86/def2-TZVPP and BP86-D3(BJ)/def2-TZVPP levels of theory. The geometry optimization at BP86/def2-TZVPP gives equilibrium structures with two-coordinated species E and bending angles C-E-C between 152.5° (E=Be) and 110.5° (E=Al). Inclusion of dispersion forces at BP86-D3(BJ)/def2-TZVPP yields a three-coordinated beryllium compound Be[C(NHCMe )2 ]2 as the only energy minimum form. Three-coordinated isomers are found besides the two-coordinated energy minima for the boron and carbon cations B[C(NHCMe )2 ]2+ and C[C(NHCMe )2 ]22+ . The three-coordinated form of the boron compound is energetically lower lying than the two-coordinated form, while the opposite trend is calculated for the carbon species. The theoretically predicted bond dissociation energies suggest that all compounds are viable species for experimental studies. The X-ray structure of the benzoannelated homologue of P[C(NHCMe )2 ]23+ that was recently reported by Dordevic et al. agrees quite well with the calculated geometry of the molecule. A detailed bonding analysis using charge and energy decomposition methods shows that the two-coordinated neutral compounds Be[C(NHCMe )2 ]2 and Mg[C(NHCMe )2 ]2 possess strongly positively charged atoms Be and Mg. The carbodicarbene groups C(NHCMe )2 serve as acceptor ligands in the compounds and may be sketched with dative bonds (NHCMe )2 C←E→C(NHCMe )2 (E=Be, Mg). Dative bonds in which the carbones C(NHCMe )2 are donor ligands are suggested for the cations (NHCMe )2 C→E←C(NHCMe )2 (E=B+ , Al+ ). The dications and trications possess electron-sharing bonds in which the bonding situation is best described with the formula [(NHCMe )2 C]+ -E-[C(NHCMe )2 ]+ (E=C, Si, N+ , P+ ).
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Affiliation(s)
- Markus Hermann
- Fachbereich Chemie der, Philipps-Universität, Hans-Meerwein-Strasse 4, 35032, Marburg, Germany
| | - Gernot Frenking
- Fachbereich Chemie der, Philipps-Universität, Hans-Meerwein-Strasse 4, 35032, Marburg, Germany.,Donostia International Physics Center (DIPC), P.K. 1072, 20080, Donostia, Euskadi, Spain
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12
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Gupta R, Bansal R. Aromaticity/antiaromaticity of phospha-analogues of carbocyclic ions: A DFT investigation. COMPUT THEOR CHEM 2016. [DOI: 10.1016/j.comptc.2015.11.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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13
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Scherpf T, Wirth R, Molitor S, Feichtner KS, Gessner VH. Das Bindeglied zwischen Bisyliden und Methandiiden: Isolierung, Reaktivität und elektronische Struktur eines Yldiids. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201501818] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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14
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Scherpf T, Wirth R, Molitor S, Feichtner KS, Gessner VH. Bridging the Gap between Bisylides and Methandiides: Isolation, Reactivity, and Electronic Structure of an Yldiide. Angew Chem Int Ed Engl 2015; 54:8542-6. [DOI: 10.1002/anie.201501818] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2015] [Revised: 04/09/2015] [Indexed: 11/11/2022]
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15
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Maaliki C, Abdalilah M, Barthes C, Duhayon C, Canac Y, Chauvin R. Bis-Ylide Ligands from Acyclic Proximal Diphosphonium Precursors. Eur J Inorg Chem 2012. [DOI: 10.1002/ejic.201200407] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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