1
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Sivaramakrishna A, Pete S, Mandar Mhaskar C, Ramann H, Venkata Ramanaiah D, Arbaaz M, Niyaz M, Janardan S, Suman P. Role of hypercoordinated silicon(IV) complexes in activation of carbon–silicon bonds: An overview on utility in synthetic chemistry. Coord Chem Rev 2023. [DOI: 10.1016/j.ccr.2023.215140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/03/2023]
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2
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STRUCTURE AND STABILITY OF MCl4 CARBENE COMPLEXES (M = Si, Ge, Sn): EXPERIMENT AND THEORY. J Organomet Chem 2022. [DOI: 10.1016/j.jorganchem.2022.122551] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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3
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Vasiliu M, Edwards KC, Tapu D, Castillo CE, Stein TH, Craciun R, Arduengo AJ, Dixon DA. Bond Dissociation Energies of Carbene-Carbene and Carbene-Main Group Adducts. J Phys Chem A 2022; 126:2658-2669. [PMID: 35442677 DOI: 10.1021/acs.jpca.2c00921] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A range of carbene structures and their adducts with one another and with a selection of small-molecule electrophiles and nucleophiles were examined at the composite correlated molecular orbital theory G3MP2 level to explore ground-state "carbenic" structures, their stabilities, and reactivities. Differences between carbene general classification as a singlet electrophilic carbene or singlet nucleophilic carbene and their given reactivity are discussed. A key quantity is the carbon-carbon bond dissociation energy for carbene dimers or the carbene-adduct dissociation energy for other species. The carbene dimer bond dissociation energies span a wide range from 10 to 170 kcal/mol. The hydrogenation energies and singlet-triplet splitting were found to correlate best with the carbene's self-dimerization energy, whereas other descriptors do not. The proton and fluoride affinities of the carbenes alone prove inadequate for classifying reactivity among classes of carbenes. The self-dimerization bond dissociation energy, hydrogenation energy, and singlet-triplet splitting of various carbenes, despite sometimes large differences in proton affinity and other indicators of reactivity, provide usable metrics to correlate substantial amounts of thermodynamic and kinetic (reactivity) information regarding these structures.
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Affiliation(s)
- Monica Vasiliu
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Kyle C Edwards
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Daniela Tapu
- Department of Chemistry and Biochemistry, Kennesaw State University, Kennesaw, Georgia 30144, United States
| | - Clarisa E Castillo
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Trent H Stein
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Raluca Craciun
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
| | - Anthony J Arduengo
- School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, Georgia 30332-0400, United States
| | - David A Dixon
- Department of Chemistry and Biochemistry, The University of Alabama, Tuscaloosa, Alabama 35487-0336, United States
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4
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Ackermann MT, Seidl M, Wen F, Ferguson MJ, Timoshkin AY, Rivard E, Scheer M. An NHC-Stabilized H 2 GeBH 2 Precursor for the Preparation of Cationic Group 13/14/15 Hydride Chains. Chemistry 2021; 28:e202103780. [PMID: 34761837 PMCID: PMC9299135 DOI: 10.1002/chem.202103780] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Indexed: 11/19/2022]
Abstract
The synthesis, characterization and reactivity studies of the NHC‐stabilized complex IDipp ⋅ GeH2BH2OTf (1) (IDipp=1,3‐bis(2,6‐diisopropylphenyl)imidazolin‐2‐ylidene) are reported. Nucleophilic substitution of the triflate (OTf) group in 1 by phosphine or arsine donors provides access to the cationic group 13/14/15 chains [IDipp ⋅ GeH2BH2ERR1R2]+ (2 E=P; R, R1=H; R2=tBu; 3 E=P; R=H; R1, R2=Ph; 4 a E=P; R, R1, R2=Ph; 4 b E=As; R, R1, R2=Ph). These novel cationic chains were characterized by X‐ray crystallography, NMR spectroscopy and mass spectrometry. Moreover, the formation of the parent complexes [IDipp ⋅ GeH2BH2PH3][OTf] (5) and [IDipp ⋅ GeH3][OTf] (6) were achieved by reaction of 1 with PH3. Accompanying DFT computations give insight into the stability of the formed chains with respect to their decomposition.
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Affiliation(s)
- Matthias T Ackermann
- Institut für Anorganische Chemie, Universität Regensburg, 93040, Regensburg, Germany
| | - Michael Seidl
- Institut für Anorganische Chemie, Universität Regensburg, 93040, Regensburg, Germany
| | - Fuwei Wen
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta, T6G 2G2, Canada
| | - Michael J Ferguson
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta, T6G 2G2, Canada
| | - Alexey Y Timoshkin
- Institute of Chemistry, Saint Petersburg State University, Universitetskaya emb. 7/9, 199034, St. Petersburg, Russia
| | - Eric Rivard
- Department of Chemistry, University of Alberta, 11227 Saskatchewan Dr., Edmonton, Alberta, T6G 2G2, Canada
| | - Manfred Scheer
- Institut für Anorganische Chemie, Universität Regensburg, 93040, Regensburg, Germany
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5
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Borthakur B, Ghosh B, Phukan AK. The flourishing chemistry of carbene stabilized compounds of group 13 and 14 elements. Polyhedron 2021. [DOI: 10.1016/j.poly.2021.115049] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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6
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Röther A, Kretschmer R. Syntheses of Bis(N-heterocyclic carbene)s and their application in main-group chemistry. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121289] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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7
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Buzsáki D, Kelemen Z, Nyulászi L. Stretching the P-C Bond. Variations on Carbenes and Phosphanes. J Phys Chem A 2020; 124:2660-2671. [PMID: 32159965 PMCID: PMC7307921 DOI: 10.1021/acs.jpca.0c00641] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/10/2020] [Indexed: 11/28/2022]
Abstract
The stability and the structure of adducts formed between four substituted phosphanes (PX3, X:H, F, Cl, and NMe2) and 11 different carbenes have been investigated by DFT calculations. In most cases, the structure of the adducts depends strongly on the stability of the carbene itself, exhibiting a linear correlation with the increasing dissociation energy of the adduct. Carbenes of low stability form phosphorus ylides (F), which can be described as phosphane → carbene adducts supported with some back-bonding. The most stable carbenes, which have high energy lone pair, do not form stable F-type structures but carbene → phosphane adducts (E-type structure), utilizing the low-lying lowest unoccupied molecular orbital (LUMO) of the phosphane (with electronegative substituents), benefiting also from the carbene-pnictogen interaction. Especially noteworthy is the case of PCl3, which has an extremely low energy LUMO in its T-shaped form. Although this PCl3 structure is a transition state of rather high energy, the large stabilization energy of the complex makes this carbene-phosphane adduct stable. Most interestingly, in case of carbenes with medium stability both F- and E-type structures could be optimized, giving rise to bond-stretch isomerism. Likewise, for phosphorus ylides (F), the stability of the adducts G formed from carbenes with hypovalent phosphorus (PX-phosphinidene) is in a linear relationship with the stabilization of the carbene. Adducts of carbenes with hypervalent phosphorus (PX5) are the most stable when X is electronegative, and the carbene is highly nucleophilic.
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Affiliation(s)
- Dániel Buzsáki
- Department
of Inorganic and Analytical Chemistry, Budapest
University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - Zsolt Kelemen
- Department
of Inorganic and Analytical Chemistry, Budapest
University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
| | - László Nyulászi
- Department
of Inorganic and Analytical Chemistry, Budapest
University of Technology and Economics, Szent Gellért tér 4, H-1111 Budapest, Hungary
- MTA-BME
Computation Driven Chemistry Research Group, Szent Gellért tér 4, H-1111 Budapest, Hungary
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8
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Dong W, Niu B, Liu S, Cheng J, Liu S, Li Q. Comparison of σ‐/π‐Hole Tetrel Bonds between TH
3
F/F
2
TO and H
2
CX (X=O, S, Se). Chemphyschem 2019; 20:627-635. [DOI: 10.1002/cphc.201800990] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2018] [Revised: 12/10/2018] [Indexed: 11/09/2022]
Affiliation(s)
- Wenbo Dong
- Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical EngineeringYantai University Yantai 264005 People's Republic of China
| | - Bingbo Niu
- Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical EngineeringYantai University Yantai 264005 People's Republic of China
| | - Shufeng Liu
- Shandong Key Laboratory of Biochemical Analysis, College of Chemistry and Molecular EngineeringQingdao University of Science and Technology Qingdao 266042 PR China
| | - Jianbo Cheng
- Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical EngineeringYantai University Yantai 264005 People's Republic of China
| | - Shaoli Liu
- Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical EngineeringYantai University Yantai 264005 People's Republic of China
| | - Qingzhong Li
- Laboratory of Theoretical and Computational Chemistry, School of Chemistry and Chemical EngineeringYantai University Yantai 264005 People's Republic of China
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9
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Jupp AR, Johnstone TC, Stephan DW. Improving the Global Electrophilicity Index (GEI) as a Measure of Lewis Acidity. Inorg Chem 2018; 57:14764-14771. [PMID: 30422644 DOI: 10.1021/acs.inorgchem.8b02517] [Citation(s) in RCA: 44] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The global electrophilicity index (GEI) has been further explored as a general and base-free metric for Lewis acidity. A number of computational methods, including post-Hartree-Fock, density functional theory, and time-dependent density functional theory, have been explored. In this fashion, we sought the method most applicable to a range of different Lewis acids with differing structural and electronic features, including boron trihalides, silicon tetrahalides, fluoroaryl boranes, and group 15 pentahalides. The most accurate and computationally efficient approach was found to use the energies of the orbitals from a geometry optimization at the B3LYP/def2-TZVP level of theory. In addition, the GEI is shown to act as an effective acidity metric that is complementary to the fluoride ion affinity. The GEI also proved to be a better gauge of Lewis acidity for softer bases, as confirmed by comparison to the iodide ion affinity of the group 15 pentahalides.
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Affiliation(s)
- Andrew R Jupp
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Timothy C Johnstone
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
| | - Douglas W Stephan
- Department of Chemistry , University of Toronto , 80 St. George Street , Toronto , Ontario M5S 3H6 , Canada
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10
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Schweizer JI, Sturm AG, Porsch T, Berger M, Bolte M, Auner N, Holthausen MC. Reactions of Si 2Br 6with N-Heterocyclic Carbenes. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800163] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Julia I. Schweizer
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Alexander G. Sturm
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Timo Porsch
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Matthias Berger
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Michael Bolte
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Norbert Auner
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
| | - Max C. Holthausen
- Institut für Anorganische Chemie; Goethe-Universität; Max-von-Laue-Strasse 7 60438 Frankfurt/Main Germany
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11
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Nesterov V, Reiter D, Bag P, Frisch P, Holzner R, Porzelt A, Inoue S. NHCs in Main Group Chemistry. Chem Rev 2018; 118:9678-9842. [PMID: 29969239 DOI: 10.1021/acs.chemrev.8b00079] [Citation(s) in RCA: 518] [Impact Index Per Article: 86.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Since the discovery of the first stable N-heterocyclic carbene (NHC) in the beginning of the 1990s, these divalent carbon species have become a common and available class of compounds, which have found numerous applications in academic and industrial research. Their important role as two-electron donor ligands, especially in transition metal chemistry and catalysis, is difficult to overestimate. In the past decade, there has been tremendous research attention given to the chemistry of low-coordinate main group element compounds. Significant progress has been achieved in stabilization and isolation of such species as Lewis acid/base adducts with highly tunable NHC ligands. This has allowed investigation of numerous novel types of compounds with unique electronic structures and opened new opportunities in the rational design of novel organic catalysts and materials. This Review gives a general overview of this research, basic synthetic approaches, key features of NHC-main group element adducts, and might be useful for the broad research community.
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Affiliation(s)
- Vitaly Nesterov
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Dominik Reiter
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Prasenjit Bag
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Philipp Frisch
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Richard Holzner
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Amelie Porzelt
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
| | - Shigeyoshi Inoue
- Department of Chemistry, WACKER-Institute of Silicon Chemistry and Catalysis Research Center , Technische Universität München , Lichtenbergstrasse 4 , Garching bei München 85748 , Germany
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12
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Medici F, Gontard G, Derat E, Lemière G, Fensterbank L. Synthesis of Stable Pentacoordinate Silicon(IV)–NHC Adducts: An Entry to Anionic N-Heterocyclic Carbene Ligands. Organometallics 2018. [DOI: 10.1021/acs.organomet.7b00838] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Fabrizio Medici
- Institut Parisien de Chimie
Moléculaire, UMR 8232 Sorbonne Universités UPMC Paris06-CNRS, 4
place Jussieu, 75005 Paris, France
| | - Geoffrey Gontard
- Institut Parisien de Chimie
Moléculaire, UMR 8232 Sorbonne Universités UPMC Paris06-CNRS, 4
place Jussieu, 75005 Paris, France
| | - Etienne Derat
- Institut Parisien de Chimie
Moléculaire, UMR 8232 Sorbonne Universités UPMC Paris06-CNRS, 4
place Jussieu, 75005 Paris, France
| | - Gilles Lemière
- Institut Parisien de Chimie
Moléculaire, UMR 8232 Sorbonne Universités UPMC Paris06-CNRS, 4
place Jussieu, 75005 Paris, France
| | - Louis Fensterbank
- Institut Parisien de Chimie
Moléculaire, UMR 8232 Sorbonne Universités UPMC Paris06-CNRS, 4
place Jussieu, 75005 Paris, France
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13
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Sinhababu S, Kundu S, Paesch AN, Herbst-Irmer R, Stalke D, Fernández I, Frenking G, Stückl AC, Schwederski B, Kaim W, Roesky HW. A Route to Base Coordinate Silicon Difluoride and the Silicon Trifluoride Radical. Chemistry 2018; 24:1264-1268. [DOI: 10.1002/chem.201705773] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2017] [Indexed: 11/05/2022]
Affiliation(s)
- Soumen Sinhababu
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Subrata Kundu
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Alexander N. Paesch
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Regine Herbst-Irmer
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Israel Fernández
- Departamento de Química Orgánica I and Centro, de Innovación en Química Avanzada; Facultad de Ciencias Químicas; Universidad Complutense de Madrid; 28040 Madrid Spain
| | - Gernot Frenking
- Fachbereich Chemie; Philipps-Universität Marburg; Hans-Meerwein-Strasse 35032 Marburg Germany
- Institute of Advanced Synthesis; School of Chemistry and Molecular Engineering; Jiangsu National Synergetic Innovation Center for Advanced Materials; Nanjing Tech University; Nanjing P.R. China
| | - A. Claudia Stückl
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Brigitte Schwederski
- Universität Stuttgart; Institut für Anorganische Chemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Wolfgang Kaim
- Universität Stuttgart; Institut für Anorganische Chemie; Pfaffenwaldring 55 70569 Stuttgart Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
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14
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Pathak D, Deuri S, Phukan P. Theoretical Insights on the Interaction of N-Heterocyclic Carbenes with Tetravalent Silicon Reagents. J Phys Chem A 2015; 120:128-38. [DOI: 10.1021/acs.jpca.5b08676] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Dipanjali Pathak
- Department
of Chemistry, Gauhati University, Guwahati 781 001, Assam, India
| | - Sanjib Deuri
- Department
of Chemistry, M. C. College, Barpeta 781 301, Assam, India
| | - Prodeep Phukan
- Department
of Chemistry, Gauhati University, Guwahati 781 001, Assam, India
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15
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Li J, Li Y, Purushothaman I, De S, Li B, Zhu H, Parameswaran P, Ye Q, Liu W. Fine Tuning of the Substituents on the N-Geminal Phosphorus/Silicon-Based Lewis Pairs for the Synthesis of Z-Type Silyliminophosphoranylalkenes. Organometallics 2015. [DOI: 10.1021/om501288t] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Jiancheng Li
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Yan Li
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Indu Purushothaman
- Department
of Chemistry, National Institute of Technology Calicut, NIT Campus PO, Kozhikode, Kerala 673601, India
| | - Susmita De
- Department
of Chemistry, National Institute of Technology Calicut, NIT Campus PO, Kozhikode, Kerala 673601, India
| | - Bin Li
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Hongping Zhu
- State
Key Laboratory of Physical Chemistry of Solid Surfaces, National Engineering
Laboratory for Green Chemical Productions of Alcohols-Ethers-Esters,
College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, People’s Republic of China
| | - Pattiyil Parameswaran
- Department
of Chemistry, National Institute of Technology Calicut, NIT Campus PO, Kozhikode, Kerala 673601, India
| | - Qingsong Ye
- State
Key Laboratory for Platinum Group Metals, Kunming Institute of Precious Metals, Kunming, Yunnan 650106, People’s Republic of China
| | - Weiping Liu
- State
Key Laboratory for Platinum Group Metals, Kunming Institute of Precious Metals, Kunming, Yunnan 650106, People’s Republic of China
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16
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Böttcher T, Röschenthaler GV. Highly reactive carbenes as ligands for main group element fluorides. Syntheses and applications. J Fluor Chem 2015. [DOI: 10.1016/j.jfluchem.2014.10.018] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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17
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Janardan S, Suman P, Sivaramakrishna A, Vijayakrishna K. Donor-stabilized hypercoordinated silicon(IV) chelates with cyclohexylideneimino-N ligand group: Role of substituents on ionization. Polyhedron 2015. [DOI: 10.1016/j.poly.2014.08.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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18
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Du GF, Xing F, Gu CZ, Dai B, He L. N-heterocyclic carbene-catalysed pentafluorophenylation of aldehydes. RSC Adv 2015. [DOI: 10.1039/c5ra05487g] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
N-heterocyclic carbenes have been utilized as highly efficient organocatalysts to catalyse multifluorophenylation of aldehydes with fluorinated aryltrimethylsilanes to afford the corresponding adducts in 49–99% yields.
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Affiliation(s)
- Guang-Fen Du
- School of Chemical Engineering and Technology
- Tianjin University. Tianjin 300072
- China
- School of Chemistry and Chemical Engineering
- Shihezi University
| | - Fen Xing
- School of Chemistry and Chemical Engineering
- Shihezi University
- China
| | - Cheng-Zhi Gu
- School of Chemistry and Chemical Engineering
- Shihezi University
- China
| | - Bin Dai
- School of Chemistry and Chemical Engineering
- Shihezi University
- China
| | - Lin He
- School of Chemistry and Chemical Engineering
- Shihezi University
- China
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19
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Schneider H, Schmidt D, Radius U. A Facile Route to Backbone-Tethered N-Heterocyclic Carbene (NHC) Ligands via NHC to aNHC Rearrangement in NHC Silicon Halide Adducts. Chemistry 2014; 21:2793-7. [DOI: 10.1002/chem.201406264] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2014] [Indexed: 11/06/2022]
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20
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Nikolin AA, Negrebetsky VV. Synthesis, properties and reactivity of intramolecular hypercoordinate silicon complexes. RUSSIAN CHEMICAL REVIEWS 2014. [DOI: 10.1070/rc2014v083n09abeh004385] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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21
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Uhlemann F, Köppe R, Schnepf A. Synthesis of Metastable SiIIX2Solutions (X= F, Cl). A Novel Binary Halide for Synthesis. Z Anorg Allg Chem 2014. [DOI: 10.1002/zaac.201400122] [Citation(s) in RCA: 20] [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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22
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Böttcher T, Steinhauer S, Neumann B, Stammler HG, Röschenthaler GV, Hoge B. Pentacoordinate silicon(IV): cationic, anionic and neutral complexes derived from the reaction of NHC→SiCl4 with highly Lewis acidic (C2F5)2SiH2. Chem Commun (Camb) 2014; 50:6204-6. [PMID: 24764020 DOI: 10.1039/c4cc02583k] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Addition of NHC→SiCl4 to the highly Lewis acidic bis(pentafluoroethyl)silane ((C2F5)2SiH2) afforded the salt [(NHC)2SiCl2H][(C2F5)2SiCl3] with pentacoordinate silicon in the cation and the anion. The anion represents the first example of a chlorosilicate structurally characterized in the solid state. In this reaction, the long sought pentacoordinate NHC-adduct of silicochloroform was identified as an intermediate and its crystal structure is presented.
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Affiliation(s)
- T Böttcher
- Universität Bielefeld, Centrum für Molekulare Materialien, Anorganische Chemie II, Universitätsstraße 25, 33615 Bielefeld, Germany.
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23
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Hollóczki O. Uranyl(VI) Complexes in and from Imidazolium Acetate Ionic Liquids: Carbenes versus Acetates? Inorg Chem 2013; 53:835-46. [DOI: 10.1021/ic402921b] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Affiliation(s)
- Oldamur Hollóczki
- Mulliken
Center for Theoretical Chemistry, University of Bonn, Beringstrasse
4 + 6, D-53115 Bonn, Germany
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24
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Brown HA, Chang YA, Waymouth RM. Zwitterionic Polymerization to Generate High Molecular Weight Cyclic Poly(Carbosiloxane)s. J Am Chem Soc 2013; 135:18738-41. [DOI: 10.1021/ja409843v] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- Hayley A. Brown
- Department of Chemistry Stanford University, Stanford, California 94305, United States
| | - Young A. Chang
- Department of Chemistry Stanford University, Stanford, California 94305, United States
| | - Robert M. Waymouth
- Department of Chemistry Stanford University, Stanford, California 94305, United States
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25
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Wagler J, Brendler E, Heine T, Zhechkov L. Disilicon complexes with two hexacoordinate Si atoms: paddlewheel-shaped isomers with (ClN4 )Si-Si(S4 Cl) and (ClN2 S2 )Si-Si(S2 N2 Cl) skeletons. Chemistry 2013; 19:14296-303. [PMID: 24009095 DOI: 10.1002/chem.201300452] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2013] [Revised: 06/07/2013] [Indexed: 11/11/2022]
Abstract
The reaction of 1-methyl-3-trimethylsilylimidazoline-2-thione with hexachlorodisilane proceeds toward substitution of four of the disilane Cl atoms during the formation of disilicon complexes with two neighboring hexacoordinate Si atoms. The N,S-bidentate methimazolide moieties adopt a buttressing role, thus forming paddlewheel-shaped complexes of the type ClSi(μ-mt)4 SiCl (mt=methimazolyl). Most interestingly, three isomers (i.e., with (ClN4 )SiSi(S4 Cl), (ClN3 S)SiSi(S3 NCl), and (ClN2 S2 )SiSi(S2 N2 Cl) skeletons as so-called (4,0), (3,1), and cis-(2,2) paddlewheels) were detected in solution by using (29) Si NMR spectroscopic analysis. Two of these isomers could be isolated as crystalline solids, thus allowing their molecular structures to be analyzed by using X-ray diffraction studies. In accord with time-dependent NMR spectroscopy, computational analyses proved the cis-(2,2) isomer with a (ClN2 S2 )SiSi(S2 N2 Cl) skeleton to be the most stable. The compounds presented herein are the first examples of crystallographically evidenced disilicon complexes with two SiSi-bonded octahedrally coordinated Si atoms and representatives of the still scarcely explored class of Si coordination compounds with sulfur donor atoms.
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Affiliation(s)
- Jörg Wagler
- Institut für Anorganische Chemie, TU Bergakademie Freiberg, 09596 Freiberg (Germany), Fax: (+49) 3731-39-4058.
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26
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Mo Z, Liu Y, Deng L. Anchoring of silyl donors on a N-heterocyclic carbene through the cobalt-mediated silylation of benzylic C-H bonds. Angew Chem Int Ed Engl 2013; 52:10845-9. [PMID: 23959570 DOI: 10.1002/anie.201304596] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Revised: 07/21/2013] [Indexed: 01/22/2023]
Affiliation(s)
- Zhenbo Mo
- State Key Laboratory of Organometallic Chemistry, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai, 200032 (P. R. China) http://dengliang.sioc.ac.cn/
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27
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Mo Z, Liu Y, Deng L. Anchoring of Silyl Donors on a N-Heterocyclic Carbene through the Cobalt-Mediated Silylation of Benzylic CH Bonds. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201304596] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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28
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Filippou AC, Lebedev YN, Chernov O, Straßmann M, Schnakenburg G. Silicon(II) Coordination Chemistry: N-Heterocyclic Carbene Complexes of Si2+and SiI+. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201301363] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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29
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Filippou AC, Lebedev YN, Chernov O, Straßmann M, Schnakenburg G. Silicon(II) Coordination Chemistry: N-Heterocyclic Carbene Complexes of Si2+and SiI+. Angew Chem Int Ed Engl 2013; 52:6974-8. [DOI: 10.1002/anie.201301363] [Citation(s) in RCA: 111] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2013] [Revised: 04/14/2013] [Indexed: 11/07/2022]
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30
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Tokoro Y, Tanaka K, Chujo Y. Synthesis of Dibenzo[b,f]silepins with a Benzoquinolyl Ligand. Org Lett 2013; 15:2366-9. [DOI: 10.1021/ol400730n] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Affiliation(s)
- Yuichiro Tokoro
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Kazuo Tanaka
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering, Kyoto University, Katsura, Nishikyo-ku, Kyoto, 615-8510, Japan
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31
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Doddi A, Gemel C, Seidel RW, Winter M, Fischer RA. Coordination complexes of TiX4 (X=F, Cl) with a bulky N-heterocyclic carbene: Syntheses, characterization and molecular structures. Polyhedron 2013. [DOI: 10.1016/j.poly.2012.06.067] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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32
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Abstract
In the last decade an explosive development has been observed in the fields of both ionic liquids (ILs) as potential chemically inert solvents with many possible technical applications, and N-heterocyclic carbenes (NHCs) as catalysts with superb performance. Since the cations of many ILs can be deprotonated by strong bases yielding NHCs, this two fields are inherently connected. It has only recently been recognized that some of the commonly used basic anions of the ILs (such as acetate) are able to deprotonate azolium cations. While the resulting NHC could clearly be observed in the vapor phase, in the liquid - where the mutual electrostatic interactions within the ion network stabilize the ion pairs - the neutral NHC cannot be detected by commonly used analytical techniques; however, from these ionic liquids NHCs can be trapped, e.g., by complex formation, or more importantly these ILs can be directly used as catalysts, since the NHC content is sufficiently large for these applications. Apart from imidazole-2-ylidenes, the formation of other highly reactive neutral species ("abnormal carbenes," 2-alkylideneimidazoles, pyridine-ylidenes or pyridinium-ylides) is feasible in highly basic ionic liquids. The cross-fertilizing overlap between the two fields may provide access to a great advance in both areas, and we give an overview here on the results published so far, and also on the remaining possibilities and challenges in the concept of "carbenes from ionic liquids."
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Affiliation(s)
- Oldamur Hollóczki
- Wilhelm-Ostwald Institute of Physical and Theoretical Chemistry, University of Leipzig, Linnéstr. 2, 04103, Leipzig, Germany,
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33
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Böttcher T, Bassil BS, Zhechkov L, Heine T, Röschenthaler GV. (NHCMe)SiCl4: a versatile carbene transfer reagent – synthesis from silicochloroform. Chem Sci 2013. [DOI: 10.1039/c2sc21214e] [Citation(s) in RCA: 54] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
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35
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Benjamin SL, Levason W, Reid G. Medium and high oxidation state metal/non-metal fluoride and oxide–fluoride complexes with neutral donor ligands. Chem Soc Rev 2013; 42:1460-99. [DOI: 10.1039/c2cs35263j] [Citation(s) in RCA: 77] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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36
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Rivard E. Recent Advances in the N-Heterocyclic Carbene-Supported Chemistry of Silicon. FUNCTIONAL MOLECULAR SILICON COMPOUNDS II 2013. [DOI: 10.1007/430_2013_94] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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37
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Böttcher T, Bassil BS, Röschenthaler GV. Complexes of Ge(IV)- and Sn(IV)-Fluorides with Cyclic and Acyclic Carbenes: Bis(dialkylamino)-difluoromethylenes as Carbene Sources. Inorg Chem 2012; 51:763-5. [DOI: 10.1021/ic202008m] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Tobias Böttcher
- School of Engineering and Science, Jacobs
University
Bremen, Campus Ring 1, 28759 Bremen, Germany
| | - Bassem S. Bassil
- School of Engineering and Science, Jacobs
University
Bremen, Campus Ring 1, 28759 Bremen, Germany
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38
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Tokoro Y, Yeo H, Tanaka K, Chujo Y. Synthesis of benzo[h]quinoline-based neutral pentacoordinate organosilicon complexes. Chem Commun (Camb) 2012; 48:8541-3. [DOI: 10.1039/c2cc34440h] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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39
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40
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Khan S, Sen SS, Kratzert D, Tavčar G, Roesky HW, Stalke D. Synthesis of Stable Silicon Heterocycles by Reaction of Organic Substrates with a Chlorosilylene [PhC(NtBu)2SiCl]. Chemistry 2011; 17:4283-90. [DOI: 10.1002/chem.201001901] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2010] [Revised: 01/17/2011] [Indexed: 11/11/2022]
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41
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George K, Hector AL, Levason W, Reid G, Sanderson G, Webster M, Zhang W. Hypervalent neutral O-donor ligand complexes of silicon tetrafluoride, comparisons with other group 14 tetrafluorides and a search for soft donor ligand complexes. Dalton Trans 2011; 40:1584-93. [DOI: 10.1039/c0dt01115k] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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42
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Wagler J, Brendler E, Langer T, Pöttgen R, Heine T, Zhechkov L. Ylenes in the M(II)→Si(IV) (M=Si, Ge, Sn) coordination mode. Chemistry 2010; 16:13429-34. [PMID: 21110325 DOI: 10.1002/chem.201002191] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The reaction of the methimazolyl (mt, i.e., 2-mercapto-1-methylimidazolide) substituted silane Si(mt)(4) with SnCl(2) and GeCl(2) in dioxane affords the paddlewheel-shaped complexes [ClSi(μ-mt)(4)MCl] (M=Sn (1) and Ge (2), respectively). These compounds represent the first crystallographically characterized hexacoordinate silicon complexes comprising a Sn or Ge atom in the Si coordination sphere. An attempt to synthesize the related silicon compound 3 [ClSi(μ-mt)(4)SiCl] instead afforded the trisilane [ClSi(μ-mt)(4)Si-SiCl(3)] (3a), which provides the first crystallographic evidence for the feasibility of oligosilanes with adjacent hexacoordinate Si atoms. One of the hexacoordinate Si atoms of 3a features the unprecedented (Si(2)S(4))Si skeleton. Natural bonding orbital (NBO) analyses of compounds 1, 2, 3a (and the target compound 3) revealed characteristics of M(II)→Si(IV) (for 2 and 3) or M(I)→Si(IV) (for 3a) dative bonding in the systems with M=Si and Ge, whereas compound 1 exhibits a covalent Sn(III)-Si(III) bond.
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Affiliation(s)
- Jörg Wagler
- Institut für Anorganische Chemie, TU Bergakademie Freiberg, 09596 Freiberg, Germany.
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43
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Ghadwal RS, Pröpper K, Dittrich B, Jones PG, Roesky HW. Neutral Pentacoordinate Silicon Fluorides Derived from Amidinate, Guanidinate, and Triazapentadienate Ligands and Base-Induced Disproportionation of Si2Cl6 to Stable Silylenes. Inorg Chem 2010; 50:358-64. [DOI: 10.1021/ic1020548] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajendra S. Ghadwal
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Kevin Pröpper
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Birger Dittrich
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
| | - Peter G. Jones
- Institut für Anorganische und Analytische Chemie der Technischen Universität Braunschweig, Hagenring 30, D 38106 Braunschweig, Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, D 37077 Göttingen, Germany
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Jana A, Samuel PP, Tavcar G, Roesky HW, Schulzke C. Selective aromatic C-F and C-H bond activation with silylenes of different coordinate silicon. J Am Chem Soc 2010; 132:10164-70. [PMID: 20608652 DOI: 10.1021/ja103988d] [Citation(s) in RCA: 97] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Herein we report on the reaction of stable two-coordinate silylene, L(1)Si [L(1) = CH{(C=CH(2))(CMe)(2,6-iPr(2)C(6)H(3)N)(2)}] (1) and three-coordinate silylene (Lewis base stabilized silylene), L(2)SiCl [L(2) = PhC(NtBu)(2)] (2) with aromatic compounds containing C-F and C-H bonds. The reaction of 1 and 2 with hexafluorobenzene (C(6)F(6)) affords the silicon(IV) fluorides, L(1)SiF(C(6)F(5)) (3) and L(2)SiFCl(C(6)F(5)) (4), respectively. The reaction proceeds through the unprecedented oxidative addition of one of the C-F bonds to the silicon(II) center without any additional catalyst. When 1 and 2 are treated with octafluorotoluene (C(6)F(5)CF(3)), pentafluoropyridine (C(5)F(5)N) regioselective C-F bond activation occurs leading to the formation of L(1)SiF(4-C(6)F(4)CF(3)) (5), L(1)SiF(4-C(5)F(4)N) (6), L(2)SiFCl(4-C(6)F(4)CF(3)) (7), and L(2)SiFCl(4-C(5)F(4)N) (8), respectively. More interestingly, compounds 1 and 2 react with pentafluorobenzene (C(6)F(5)H) under formation of silicon(IV) hydride L(1)SiH(C(6)F(5)) (9) by chemoselective C-H bond activation, in the latter case producing silicon(IV) fluoride L(2)SiFCl(4-C(6)F(4)H) (10) by chemo- as well as regioselective C-F bond activation. Furthermore, the reaction of 1 with 1,3,5-trifluorobenzene (1,3,5-C(6)F(3)H(3)) leads to the chemoselective formation of silicon(IV) hydride L(1)SiH(1,3,5-C(6)F(3)H(2)) (11). The formation of compounds 9 and 11 occurs via oxidative addition of the aromatic C-H bond to the silicon(II) center instead of C-F bond activation. All reported reactions proceed without any additional catalyst. Compounds 3, 4, 5, 6, 7, 8, 9, 10, and 11 were investigated by microanalysis and multinuclear NMR spectroscopy and compounds 3, 7, 8, and 9 additionally by single crystal X-ray structural analyses.
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Affiliation(s)
- Anukul Jana
- Institut für Anorganische Chemie, Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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Fuchter MJ. N‐Heterocyclic Carbene Mediated Activation of Tetravalent Silicon Compounds: A Critical Evaluation. Chemistry 2010; 16:12286-94. [DOI: 10.1002/chem.201001120] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Matthew J. Fuchter
- Department of Chemistry, Imperial College London, South Kensington, London SW7 2AZ (UK), Fax:(+44) 20‐7594‐5805
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46
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Davydova E, Sevastianova T, Suvorov A, Timoshkin A. Molecular complexes formed by halides of group 4,5,13–15 elements and the thermodynamic characteristics of their vaporization and dissociation found by the static tensimetric method. Coord Chem Rev 2010. [DOI: 10.1016/j.ccr.2010.04.001] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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47
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Tavčar G, Sen SS, Roesky HW, Hey J, Kratzert D, Stalke D. Reactions of a Bis-silylene (LSi−SiL, L = PhC(NtBu)2) and a Heteroleptic Chloro Silylene (LSiCl) with Benzil: Formation of Bis(siladioxolene) and Monosiladioxolene Analogue with Five-Coordinate Silicon Atoms in Both Ring Systems. Organometallics 2010. [DOI: 10.1021/om100581u] [Citation(s) in RCA: 52] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Gašper Tavčar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Sakya S. Sen
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Jakob Hey
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Daniel Kratzert
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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Metz S, Theis B, Burschka C, Tacke R. Neutral Pentacoordinate Halogeno- and Pseudohalogenosilicon(IV) Complexes with an SiSONCX Skeleton (X=F, Cl, Br, I, N, C): Synthesis and Structural Characterization in the Solid State and in Solution. Chemistry 2010; 16:6844-56. [DOI: 10.1002/chem.201000152] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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49
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Cota S, Beyer M, Bertermann R, Burschka C, Götz K, Kaupp M, Tacke R. Neutral Penta- and Hexacoordinate Silicon(IV) Complexes Containing Two Bidentate Ligands Derived from the α-Amino Acids (S)-Alanine, (S)-Phenylalanine, and (S)-tert-Leucine. Chemistry 2010; 16:6582-9. [DOI: 10.1002/chem.201000294] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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50
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Sen SS, Tavčar G, Roesky HW, Kratzert D, Hey J, Stalke D. Synthesis of a Stable Four-Membered Si2O2 Ring and a Dimer with Two Four-Membered Si2O2 Rings Bridged by Two Oxygen Atoms, with Five-Coordinate Silicon Atoms in Both Ring Systems. Organometallics 2010. [DOI: 10.1021/om100164u] [Citation(s) in RCA: 66] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Sakya S. Sen
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Gašper Tavčar
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Daniel Kratzert
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Jakob Hey
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
| | - Dietmar Stalke
- Institut für Anorganische Chemie der Universität Göttingen, Tammannstrasse 4, 37077 Göttingen, Germany
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