1
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Chen M, Zhang Z, Qiao Z, Zhao L, Mo Z. An Isolable Bis(Germylene)-Stabilized Plumbylone. Angew Chem Int Ed Engl 2023; 62:e202215146. [PMID: 36421062 DOI: 10.1002/anie.202215146] [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: 10/14/2022] [Revised: 11/22/2022] [Accepted: 11/23/2022] [Indexed: 11/25/2022]
Abstract
We report herein the synthesis of a stable plumbylone (3) by reduction of a bromodigermylplumbylene (2) with 2.2 equiv of potassium graphite (KC8 ). The molecular structure of 3 was established by a single-crystal X-ray diffraction study and features a two-coordinated Pb center with an acute Ge-Pb-Ge bond angle. Computational studies showed that this complex (3) possesses a singlet electronic ground state with a Pb0 center. Its high thermal stability can be most likely ascribed to the delocalization of π electrons over the Ge-Pb-Ge moiety. A preliminary reactivity study demonstrates that complex 3 can deliver Pb0 atoms to an organic azide producing a tetrameric imido complex [(PbNDipp)4 ] (Dipp=2,6-i Pr-C6 H3 , 4) and perform a metathesis reaction with GeCl2 ⋅dioxane to produce a bis(germylene)-stabilized germylone (5), highlighting the synthetic utility of 3.
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Affiliation(s)
- Ming Chen
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Zhaoyin Zhang
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, China
| | - Zihao Qiao
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
| | - Lili Zhao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing, 211816, China
| | - Zhenbo Mo
- State Key Laboratory and Institute of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin, 300071, China
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2
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Hood TM, Lau S, Webster RL. Taming PH 3: State of the Art and Future Directions in Synthesis. J Am Chem Soc 2022; 144:16684-16697. [PMID: 36070395 PMCID: PMC9501927 DOI: 10.1021/jacs.2c07688] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Appetite for reactions
involving PH3 has grown in the
past few years. This in part is due to the ability to generate PH3 cleanly and safely via digestion of cheap metal phosphides
with acids, thus avoiding pressurized cylinders and specialized equipment.
In this perspective we highlight current trends in forming new P–C/P–OC
bonds with PH3 and discuss the challenges involved with
selectivity and product separation encumbering these reactions. We
highlight the reactivity of PH3 with main group reagents,
building on the early pioneering work with transition metal complexes
and PH3. Additionally, we highlight the recent renewal
of interest in alkali metal sources of H2P– which are proving to be useful synthons for chemistry across the
periodic table. Such MPH2 sources are being used to generate
the desired products in a more controlled fashion and are allowing
access to unexplored phosphorus-containing species.
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Affiliation(s)
- Thomas M Hood
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Samantha Lau
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
| | - Ruth L Webster
- Department of Chemistry, University of Bath, Claverton Down, Bath BA2 7AY, United Kingdom
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3
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Weinert HM, Wölper C, Schulz S. Synthesis of Distibiranes and Azadistibiranes by Cycloaddition Reactions of Distibenes with Diazomethanes and Azides. Chem Sci 2022; 13:3775-3786. [PMID: 35432897 PMCID: PMC8966720 DOI: 10.1039/d2sc00314g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/03/2022] [Indexed: 11/21/2022] Open
Abstract
Cycloaddition reactions of distibene [L(Me2N)GaSb]2 (L = HC[C(Me)NDipp]2; Dipp= 2,6-i-Pr2C6H3)=) with a series of organoazides RN3 (R = Ph, p-CF3-Ph, 1-adamantyl (ada)) yielded azadistibiranes [L(Me2N)GaSb]2NR (R = Ph 1, p-CF3-Ph...
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Affiliation(s)
- Hanns M Weinert
- Institute for Inorganic Chemistry, University of Duisburg-Essen, Universitätsstraße 5-7 45117 Essen Germany
| | - Christoph Wölper
- Institute for Inorganic Chemistry, University of Duisburg-Essen, Universitätsstraße 5-7 45117 Essen Germany
| | - Stephan Schulz
- Institute for Inorganic Chemistry, University of Duisburg-Essen, Universitätsstraße 5-7 45117 Essen Germany
- Center for Nanointegration Duisburg-Essen (Cenide), University of Duisburg-Essen Carl-Benz-Straße 199 47057 Duisburg Germany
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4
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Bajo S, Alcaide MM, López-Serrano J, Campos J. Dehydrogenative Double C-H Bond Activation in a Germylene-Rhodium Complex*. Chemistry 2021; 27:16422-16428. [PMID: 34611944 PMCID: PMC9297988 DOI: 10.1002/chem.202102529] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Indexed: 01/04/2023]
Abstract
Transition metal tetrylene complexes offer great opportunities for molecular cooperation due to the ambiphilic character of the group 14 element. Here we focus on the coordination of germylene [(ArMes2 )2 Ge :] (ArMes =C6 H3 -2,6-(C6 H2 -2,4,6-Me3 )2 ) to [RhCl(COD)]2 (COD=1,5-cyclooctadiene), which yields a neutral germyl complex in which the rhodium center exhibits both η6 - and η2 -coordination to two mesityl rings in an unusual pincer-type structure. Chloride abstraction from this species triggers a singular dehydrogenative double C-H bond activation across the Ge/Rh motif. We have isolated and fully characterized three rhodium-germyl species associated to three C-H cleavage events along this process. The reaction mechanism has been further investigated by computational means, supporting the key cooperative action of rhodium and germanium centers.
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Affiliation(s)
- Sonia Bajo
- 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, 1Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - María M Alcaide
- 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, 1Avenida Américo Vespucio 49, 41092, Sevilla, Spain
| | - Joaquín López-Serrano
- 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, 1Avenida 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, 1Avenida Américo Vespucio 49, 41092, Sevilla, Spain
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5
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Nakaya K, Takahashi S, Ishii A, Boonpalit K, Surawatanawong P, Nakata N. Hydroboration of carbonyls and imines by an iminophosphonamido tin(II) precatalyst. Dalton Trans 2021; 50:14810-14819. [PMID: 34596191 DOI: 10.1039/d1dt01856f] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel three-coordinated tin(II) chloride [Ph2P(NtBu)2]SnCl (1) supported by an N,N'-di-tert-butyliminophosphonamide having two phenyl groups on the phosphorus atom was synthesized by the reaction of the starting lithium iminophosphonamide [Ph2P(NtBu)2]Li with SnCl2·(dioxane) in toluene. The molecular structure of 1 was established by X-ray diffraction analysis. Tin(II) chloride 1 can act as an efficient precatalyst for the hydroboration of a wide variety of aldehydes, ketones, and imines at -10 °C. DFT calculations propose that hydroboration involves hydride transfer from the corresponding tin(II) hydride intermediate [Ph2P(NtBu)2]SnH (10) to the carbonyl substrates via four-membered transition states (TS-12), affording three-coordinated tin(II) alkoxide intermediates [Ph2P(NtBu)2]SnOR (13), followed by the stepwise reaction of 13 with HBpin (pin = pinacolate) to release the boronate esters and regenerate the tin(II) hydride 10. The stoichiometric reaction of the in site-generated 10 with benzophenone 2a at -10 °C led to the formation of 13. Moreover, 13 also stoichiometrically reacted with HBpin at -10 °C, forming the corresponding boronate ester 3a and 10 based on the 1H NMR spectrum of the reaction mixture.
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Affiliation(s)
- Kazuki Nakaya
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan.
| | - Shintaro Takahashi
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan.
| | - Akihiko Ishii
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan.
| | - Kajjana Boonpalit
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Panida Surawatanawong
- Department of Chemistry and Center of Excellence for Innovation in Chemistry, Faculty of Science, Mahidol University, Bangkok 10400, Thailand
| | - Norio Nakata
- Department of Chemistry, Graduate School of Science and Engineering, Saitama University, 255 Shimo-okubo, Sakura-ku, Saitama 338-8570, Japan.
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6
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Nechaev MS. Tetrylenes: Electronic Structure, Stability, Reactivity, and Ligand Properties—A Comparative DFT Study. Organometallics 2021. [DOI: 10.1021/acs.organomet.1c00440] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mikhail S. Nechaev
- A.V. Topchiev Institute of Petrochemical Synthesis, Russian Academy of Sciences, Moscow 119991, Russia
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7
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Sen N, Khan S. Heavier Tetrylenes as Single Site Catalysts. Chem Asian J 2021; 16:705-719. [DOI: 10.1002/asia.202100038] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Revised: 02/15/2021] [Indexed: 01/16/2023]
Affiliation(s)
- Nilanjana Sen
- Department of Chemistry Indian Institute of Science Education and Research (IISER), Pune Dr. Homi Bhabha Road Pashan, Pune 411008 India
| | - Shabana Khan
- Department of Chemistry Indian Institute of Science Education and Research (IISER), Pune Dr. Homi Bhabha Road Pashan, Pune 411008 India
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8
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Borthakur R, Chandrasekhar V. Boron-heteroelement (B–E; E = Al, C, Si, Ge, N, P, As, Bi, O, S, Se, Te) multiply bonded compounds: Recent advances. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2020.213647] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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9
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Han Z, Röhner D, Samedov K, Gates DP. Isolable Phosphaalkenes Bearing 2,4,6-Trimethoxyphenyl and 2,6-Bis(trifluoromethyl)phenyl as P-Substituents. J Org Chem 2020; 85:14643-14652. [DOI: 10.1021/acs.joc.0c01514] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Affiliation(s)
- Zeyu Han
- Chemistry Department, University of British Columbia, 2036 Main Mall, Vancouver V6T 1Z1, Canada
| | - David Röhner
- Chemistry Department, University of British Columbia, 2036 Main Mall, Vancouver V6T 1Z1, Canada
| | - Kerim Samedov
- Chemistry Department, University of British Columbia, 2036 Main Mall, Vancouver V6T 1Z1, Canada
| | - Derek P. Gates
- Chemistry Department, University of British Columbia, 2036 Main Mall, Vancouver V6T 1Z1, Canada
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10
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Kalita AJ, Rohman SS, Kashyap C, Ullah SS, Mazumder LJ, Guha AK. Theoretical Prediction of a Neutral Zero‐Valent Beryllium Compound Isoelectronic with Singlet Carbenes. ChemistrySelect 2020. [DOI: 10.1002/slct.202002415] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Affiliation(s)
- Amlan J. Kalita
- Advanced Computational Chemistry CentreDepartment of ChemistryCotton University, Panbazar, Guwahati Assam INDIA- 781001
| | - Shahnaz S. Rohman
- Advanced Computational Chemistry CentreDepartment of ChemistryCotton University, Panbazar, Guwahati Assam INDIA- 781001
| | - Chayanika Kashyap
- Advanced Computational Chemistry CentreDepartment of ChemistryCotton University, Panbazar, Guwahati Assam INDIA- 781001
| | - Sabnam S. Ullah
- Advanced Computational Chemistry CentreDepartment of ChemistryCotton University, Panbazar, Guwahati Assam INDIA- 781001
| | - Lakhya J. Mazumder
- Advanced Computational Chemistry CentreDepartment of ChemistryCotton University, Panbazar, Guwahati Assam INDIA- 781001
| | - Ankur K. Guha
- Advanced Computational Chemistry CentreDepartment of ChemistryCotton University, Panbazar, Guwahati Assam INDIA- 781001
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11
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Andrea KA, Beckett AR, Briand GG, Martell SA, Masuda J, Morrison KM, Yammine EM. Synthesis and structural characterization of methylindium imino/aminophenolates: Comparison to aluminum analogues and reactivity toward the coupling reactions of carbon dioxide with epoxides. J Organomet Chem 2020. [DOI: 10.1016/j.jorganchem.2020.121307] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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12
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Wei R, Chen X, Gong Y. Sulfur Dioxide Complexes of Main-Group Elements: from SO20 to SO2– and SO22– upon Coordination to Aluminum and Silicon Difluorides. Inorg Chem 2020; 59:4703-4710. [DOI: 10.1021/acs.inorgchem.9b03780] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Affiliation(s)
- Rui Wei
- Department of Radiochemistry, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
- School of Nuclear Science and Technology, University of Chinese Academy of Sciences, Beijing 100049, People’s Republic of China
| | - Xiuting Chen
- Department of Radiochemistry, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
| | - Yu Gong
- Department of Radiochemistry, Shanghai Institute of Applied Physics, Chinese Academy of Sciences, Shanghai 201800, People’s Republic of China
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13
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Xiong Y, Yao S, Szilvási T, Ruzicka A, Driess M. Homocoupling of CO and isocyanide mediated by a C,C′-bis(silylenyl)-substituted ortho-carborane. Chem Commun (Camb) 2020; 56:747-750. [PMID: 31845675 DOI: 10.1039/c9cc08680c] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A new mode of homocoupling of carbon monoxide and isocyanide with an ortho-carborane-supported bis-silylene selectively leads to unprecedented polycyclic organosilanes with Si–C and SiC bonds.
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Affiliation(s)
- Yun Xiong
- Technische Universität Berlin
- Institute of Chemistry: Metalorganic and Inorganic Materials
- 10623 Berlin
- Germany
| | - Shenglai Yao
- Technische Universität Berlin
- Institute of Chemistry: Metalorganic and Inorganic Materials
- 10623 Berlin
- Germany
| | - Tibor Szilvási
- Department of Chemical & Biological Engineering University of Wisconsin-Madison
- Madison
- USA
| | - Ales Ruzicka
- Department of General and Inorganic Chemistry
- Faculty of Chemical Technology, University of Pardubice
- 532 10 Pardubice
- Czech Republic
| | - Matthias Driess
- Technische Universität Berlin
- Institute of Chemistry: Metalorganic and Inorganic Materials
- 10623 Berlin
- Germany
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14
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Rao B, Kinjo R. A Cyclic (Alkyl)(boryl)germylene Derived from a Cyclic (Alkyl)(amino)germylene. Angew Chem Int Ed Engl 2019; 58:18150-18153. [PMID: 31596041 DOI: 10.1002/anie.201910933] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2019] [Revised: 09/29/2019] [Indexed: 11/09/2022]
Abstract
A cyclic (alkyl)(amino)germylene undergoes a ring expansion reaction with dibromomesitylborane (MesBBr2 ) to afford a six-membered dibromogermane derivative. In the presence of Lewis bases (PMe3 or Me NHC), reduction of the latter with two equivalents of potassium graphite (KC8 ) gives rise to cyclic (alkyl)(boryl)germylene-Lewis base adducts. Upon heating, the germylene-PMe3 adduct reacts with H2 to yield a germane, probably via a base-free germylene featuring a small HOMO-LUMO gap.
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Affiliation(s)
- Bin Rao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
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15
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Dmitrienko A, Britten JF, Spasyuk D, Nikonov GI. Adduct of NacNacAl with Benzophenone and Its Coupling Chemistry. Chemistry 2019; 26:206-211. [DOI: 10.1002/chem.201903719] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2019] [Indexed: 01/01/2023]
Affiliation(s)
- Anton Dmitrienko
- Department of Chemistry Brock University 1812 Sir Isaac Brock Way St. Catharines ON L2S 3A1 Canada
| | - James F. Britten
- Department of Chemistry & Chemical Biology McMaster University 1280 Main Street West Hamilton ON L8S 4L8 Canada
| | - Denis Spasyuk
- Canadian Light Source inc. 44 Innovation Blvd Saskatoon SK S7N 2V3 Canada
| | - Georgii I. Nikonov
- Department of Chemistry Brock University 1812 Sir Isaac Brock Way St. Catharines ON L2S 3A1 Canada
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16
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Rao B, Kinjo R. A Cyclic (Alkyl)(boryl)germylene Derived from a Cyclic (Alkyl)(amino)germylene. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201910933] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Bin Rao
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological ChemistrySchool of Physical and Mathematical SciencesNanyang Technological University Nanyang Link 21 Singapore 637371 Singapore
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17
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Caise A, Kolychev EL, Hicks J, Fuentes MÁ, Goicoechea JM, Aldridge S. Reversible borohydride formation from aluminium hydrides and {H(9-BBN)} 2: structural, thermodynamic and reactivity studies. Dalton Trans 2019; 48:10845-10852. [PMID: 30848267 DOI: 10.1039/c9dt00535h] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
A series of novel β-diketiminate stabilised aluminium borohydrides of the type (Nacnac)Al(R){H2(9-BBN)} has been synthesised offering variation in both the auxiliary R substituent and in the Nacnac backbone itself. A number of these complexes show unusual dissociation of the borane from the aluminium hydride in solution under ambient conditions. The lability of the borane is shown (by variable temperature NMR analyses) to be influenced by the electronic character of both the aluminium-bound R substituent and the Nacnac ligand itself, such that electron-withdrawing substituents lead to greater dissociation of the borane. Comparison of these complexes with related systems featuring the tetrahydroborate [BH4]- ligand illustrates the impact of the boron-bound substituents on the ability of the borane fragment to dissociate from the aluminium hydride. This dissociative behaviour is shown to be highly influential on the ability of the borohydride complexes to reduce carbon dioxide in a stoichiometric manner.
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Affiliation(s)
- Alexa Caise
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Eugene L Kolychev
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Jamie Hicks
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - M Ángeles Fuentes
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Jose M Goicoechea
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
| | - Simon Aldridge
- Inorganic Chemistry Laboratory, Department of Chemistry, University of Oxford, South Parks Road, Oxford, OX1 3QR, UK.
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18
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Brandejs J, Veis L, Szalay S, Barcza G, Pittner J, Legeza Ö. Quantum information-based analysis of electron-deficient bonds. J Chem Phys 2019; 150:204117. [PMID: 31153207 DOI: 10.1063/1.5093497] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
Recently, the correlation theory of the chemical bond was developed, which applies concepts of quantum information theory for the characterization of chemical bonds, based on the multiorbital correlations within the molecule. Here, for the first time, we extend the use of this mathematical toolbox for the description of electron-deficient bonds. We start by verifying the theory on the textbook example of a molecule with three-center two-electron bonds, namely, diborane(6). We then show that the correlation theory of the chemical bond is able to properly describe the bonding situation in more exotic molecules which have been synthesized and characterized only recently, in particular, the diborane molecule with four hydrogen atoms [diborane(4)] and a neutral zerovalent s-block beryllium complex, whose surprising stability was attributed to a strong three-center two-electron π bond stretching across the C-Be-C core. Our approach is of high importance especially in the light of a constant chase after novel compounds with extraordinary properties where the bonding is expected to be unusual.
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Affiliation(s)
- Jan Brandejs
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223 Prague 8, Czech Republic
| | - Libor Veis
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223 Prague 8, Czech Republic
| | - Szilárd Szalay
- Strongly Correlated Systems "Lendület" Research Group, Institute for Solid State Physics and Optics, MTA Wigner Research Centre for Physics, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, Hungary
| | - Gergely Barcza
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223 Prague 8, Czech Republic
| | - Jiří Pittner
- J. Heyrovský Institute of Physical Chemistry, Academy of Sciences of the Czech Republic, v.v.i., Dolejškova 3, 18223 Prague 8, Czech Republic
| | - Örs Legeza
- Strongly Correlated Systems "Lendület" Research Group, Institute for Solid State Physics and Optics, MTA Wigner Research Centre for Physics, Konkoly-Thege Miklós út 29-33, H-1121 Budapest, Hungary
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19
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Dasgupta R, Das S, Hiwase S, Pati SK, Khan S. N-Heterocyclic Germylene and Stannylene Catalyzed Cyanosilylation and Hydroboration of Aldehydes. Organometallics 2019. [DOI: 10.1021/acs.organomet.8b00673] [Citation(s) in RCA: 45] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Rajarshi Dasgupta
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Shubhajit Das
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur-Bangalore 560064, India
| | - Shweta Hiwase
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
| | - Swapan K. Pati
- New Chemistry Unit, Jawaharlal Nehru Centre for Advanced Scientific Research, Jakkur-Bangalore 560064, India
| | - Shabana Khan
- Department of Chemistry, Indian Institute of Science Education and Research Pune, Dr. Homi Bhabha Road, Pashan, Pune 411 008, India
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20
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Rao B, Wang L, Kinjo R. Borane-Catalyzed Cross-Metathesis Strategy for Facile Transformation of Cyclic (Alkyl)(Amino)Germylenes. Angew Chem Int Ed Engl 2019; 58:231-235. [PMID: 30447043 DOI: 10.1002/anie.201811574] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2018] [Indexed: 11/11/2022]
Abstract
A borane B(C6 F5 )3 -catalyzed metathesis reaction between the Si-C bond in the cyclic (alkyl)(amino)germylene (CAAGe) 1 and the Si-H bond in a silane (R3 SiH; 2) is reported. Mechanistic studies propose that the initial step of the reaction involves Si-H bond activation to furnish an ionic species [1-SiR3 ]+ [HB(C6 F5 )3 ]- , from which [Me3 Si]+ [HB(C6 F5 )3 ]- and an azagermole intermediate are generated. The former yields Me3 SiH concomitant with the regeneration of B(C6 F5 )3 whereas the latter undergoes isomerization to afford CAAGes bearing various silyl groups on the carbon atom next to the germylene center. This strategy allows the straightforward synthesis of eight new CAAGes starting from 1.
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Affiliation(s)
- Bin Rao
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | - Liliang Wang
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry, School of Physical and Mathematical Sciences, Nanyang Technological University, Nanyang Link 21, Singapore, 637371, Singapore
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21
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Rao B, Wang L, Kinjo R. Borane-Catalyzed Cross-Metathesis Strategy for Facile Transformation of Cyclic (Alkyl)(Amino)Germylenes. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201811574] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Bin Rao
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Liliang Wang
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
| | - Rei Kinjo
- Division of Chemistry and Biological Chemistry; School of Physical and Mathematical Sciences; Nanyang Technological University; Nanyang Link 21 Singapore 637371 Singapore
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22
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Brand A, Uhl W. Sterically Constrained Bicyclic Phosphines: A Class of Fascinating Compounds Suitable for Application in Small Molecule Activation and Coordination Chemistry. Chemistry 2018; 25:1391-1404. [DOI: 10.1002/chem.201803331] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2018] [Indexed: 11/06/2022]
Affiliation(s)
- Alexander Brand
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstrasse 30 48149 Münster Germany
| | - Werner Uhl
- Institut für Anorganische und Analytische Chemie; Westfälische Wilhelms-Universität Münster; Corrensstrasse 30 48149 Münster Germany
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23
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Förster C, Becker PM, Heinze K. A Ferrocenyl Amino Substituted Stannylene as an Intramolecular Fe→Sn Lewis Adduct. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800269] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Christoph Förster
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Patrick M. Becker
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
| | - Katja Heinze
- Institute of Inorganic Chemistry and Analytical Chemistry; Johannes Gutenberg University of Mainz; Duesbergweg 10-14 55128 Mainz Germany
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24
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Krüger J, Schoening J, Ganesamoorthy C, John L, Wölper C, Schulz S. Synthesis and X-ray Crystal Structures of Ga-substituted Distibenes [L(X)GaSb]2. Z Anorg Allg Chem 2018. [DOI: 10.1002/zaac.201800204] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Julia Krüger
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE); University of Duisburg-Essen; 45117 Essen Germany
| | - Juliane Schoening
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE); University of Duisburg-Essen; 45117 Essen Germany
| | - Chelladurai Ganesamoorthy
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE); University of Duisburg-Essen; 45117 Essen Germany
| | - Lukas John
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE); University of Duisburg-Essen; 45117 Essen Germany
| | - Christoph Wölper
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE); University of Duisburg-Essen; 45117 Essen Germany
| | - Stephan Schulz
- Faculty of Chemistry and Center for Nanointegration Duisburg-Essen (CENIDE); University of Duisburg-Essen; 45117 Essen Germany
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25
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Wang S, Sherbow TJ, Berben LA, Power PP. Reversible Coordination of H 2 by a Distannyne. J Am Chem Soc 2018; 140:590-593. [PMID: 29272120 DOI: 10.1021/jacs.7b11798] [Citation(s) in RCA: 45] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The terphenyl tin(II) hydride [AriPr4Sn(μ-H)]2 (1) (AriPr4 = C6H3-2,6(C6H3-2,6-iPr2)2) was shown to form an equilibrium with the distannyne AriPr4SnSnAriPr4 (2) and H2 in toluene at 80 °C. The equilibrium constant and Gibbs free energy for the dissociation of H2 are 2.23 × 10-4 ± 4.9% and 5.89 kcal/mol ± 0.68%, respectively, by 1H NMR spectroscopy and 2.33 × 10-4 ± 6.2% and 5.86 kcal/mol ± 0.73%, respectively, by UV-vis spectroscopy, indicating that the hydride 1 is strongly favored. Further heating of 2 at ca. 100 °C afforded the known pentagonal-bipyramidal Sn7 cluster Sn5(SnAriPr4)2 (3). Mechanistic studies show that 3 is formed from distannyne 2, which is generated from 1. The order of the reaction for the conversion of 2 into 3 was found to be zero, and the rate constant is 1.77 × 10-5 M s-1 at 100 °C. Hydride 1 was further characterized by cyclic voltammetry, and its pKa was found to be 18.8(2) via titration with 1,8-diazabicyclo[5.4.0]undec-7-ene. The bond dissociation free energy was estimated to be 51.1 kcal/mol ± 3.4% on the basis of its pKa and reduction potential. Studies with deuterium indicate ready exchange of D2 with the hydrides in 1.
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Affiliation(s)
- Shuai Wang
- Department of Chemistry, University of California, Davis , 1 Shields Avenue, Davis, California 95616, United States
| | - Tobias J Sherbow
- Department of Chemistry, University of California, Davis , 1 Shields Avenue, Davis, California 95616, United States
| | - Louise A Berben
- Department of Chemistry, University of California, Davis , 1 Shields Avenue, Davis, California 95616, United States
| | - Philip P Power
- Department of Chemistry, University of California, Davis , 1 Shields Avenue, Davis, California 95616, United States
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26
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Nguyen MT, Gabidullin B, Nikonov GI. Neutral and anionic zinc compounds supported by a bis(imino)phenyl NCN ligand. Dalton Trans 2018. [DOI: 10.1039/c8dt00149a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
The new zinc complexes 2,6-(ArNCH)2C6H3ZnBu (6) and 2,6-(ArNCH)2C6H3ZnCl2Li(THF)3 (7), supported by a bis(imino)phenyl NCN pincer ligand, were prepared (Ar = 2,6-iPr2C6H3).
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Affiliation(s)
| | - Bulat Gabidullin
- X-Ray Core Facility
- Faculty of Science University of Ottawa
- Ottawa
- Canada K1N 6N5
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27
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Đorđević N, Ganguly R, Petković M, Vidović D. E–H (E = B, Si, C) Bond Activation by Tuning Structural and Electronic Properties of Phosphenium Cations. Inorg Chem 2017; 56:14671-14681. [DOI: 10.1021/acs.inorgchem.7b02579] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Nemanja Đorđević
- SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737
| | - Rakesh Ganguly
- SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737
| | - Milena Petković
- Faculty
of Physical Chemistry, University of Belgrade, 11000 Belgrade, Republic of Serbia
| | - Dragoslav Vidović
- SPMS-CBC, Nanyang Technological University, 21 Nanyang Link, Singapore 638737
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28
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Lortie JL, Dudding T, Gabidullin BM, Nikonov GI. Zinc-Catalyzed Hydrosilylation and Hydroboration of N-Heterocycles. ACS Catal 2017. [DOI: 10.1021/acscatal.7b02811] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- John L. Lortie
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Travis Dudding
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Bulat M. Gabidullin
- X-ray
Core Facility, Faculty of Science, University of Ottawa, 150 Louis
Pasteur, Ottawa, Ontario K1N 6N5, Canada
| | - Georgii I. Nikonov
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
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29
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Robinson TP, De Rosa D, Aldridge S, Goicoechea JM. On the Redox Reactivity of a Geometrically Constrained Phosphorus(III) Compound. Chemistry 2017; 23:15455-15465. [PMID: 28865168 DOI: 10.1002/chem.201703119] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Indexed: 11/11/2022]
Abstract
The reactivity of a geometrically constrained phosphorus(III) complex bearing the N,N-bis(3,5-di-tert-butyl-2-phenolate)amide pincer ligand (P(ONO); 1) towards oxidants and reductants is explored. This compound can be readily oxidized to the phosphorus(V) dihalo-derivatives P(ONO)X2 where X=Cl (2), Br (3) and I (4). Attempts at isolating the analogous difluoride through oxidation of 1 were unsuccessful yielding only the hydrofluoride P(ONO)(H)F (5), however P(ONO)F2 (6) can be accessed via a halide exchange reaction of 2 with KF. Compound 2 can be employed as a precursor to novel cationic species through chloride ion displacement using strong Lewis bases. Thus, reaction of 2 with two or three molar equivalents of dimethylaminopyridine (DMAP) affords [P(ONO)(Cl)(DMAP)2 ]+ (7) and [P(ONO)(DMAP)3 ]2+ (8). Reaction of 2 with the weaker bidentate base 2,2'-bipyridine (bipy) affords [P(ONO)(Cl)(bipy)]+ (9), although this species was only accessible upon addition of a halide abstracting agent. The dicationic tris(pyridine) adduct [P(ONO)(py)3 ]2+ (10) is also accessible by reaction of 4 with pyridine. Oxidation of 1 using oxygen gas proceeds slowly and allows for the observation of two compounds, a mixed valence dimeric phosphorus(III)/phosphorus(V) compound [P(ONO)(μ2 -O)(μ2 :κ1 ,κ2 -ONO)P] (11) and the fully oxidized species [P(ONO)(μ2 -O)(μ2 :κ1 ,κ2 -ONO)P(O)] (12). Finally, reaction of 1 using KC8 results in the dimerization of the putative radical anion [P(ONO)].- through formation of a P-P bond to afford [P(ONO)]22- (13). Reactions with TEMPO result in the formation of the trigonal bipyramidal species P(ONO)(TEMPO)2 (14).
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Affiliation(s)
- Thomas P Robinson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Daniel De Rosa
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Simon Aldridge
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Jose M Goicoechea
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
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30
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Bag P, Porzelt A, Altmann PJ, Inoue S. A Stable Neutral Compound with an Aluminum-Aluminum Double Bond. J Am Chem Soc 2017; 139:14384-14387. [PMID: 28898060 DOI: 10.1021/jacs.7b08890] [Citation(s) in RCA: 127] [Impact Index Per Article: 18.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Homodinuclear multiple-bonded neutral Al compounds, aluminum analogues of alkenes, have been a notoriously difficult synthetic target over the past several decades. Herein, we report the isolation of a stable neutral compound featuring an Al═Al double bond stabilized by N-heterocyclic carbenes. X-ray crystallographic and spectroscopic analyses demonstrate that the dialuminum entity possesses trans-planar geometry and an Al-Al bond length of 2.3943(16) Å, which is the shortest distance reported for a molecular dialuminum species. This new species reacts with ethylene and phenyl acetylene to give the [2+2] cycloaddition products. The structure and bonding were also investigated by detailed density functional theory calculations. These results clearly demonstrate the presence of an Al═Al double bond in this molecule.
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Affiliation(s)
- Prasenjit Bag
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Amelie Porzelt
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Philipp J Altmann
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching bei München, Germany
| | - Shigeyoshi Inoue
- Department of Chemistry, Catalysis Research Center and Institute of Silicon Chemistry, Technische Universität München , Lichtenbergstraße 4, 85748 Garching bei München, Germany
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31
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Jain S, Vanka K. The Unusual Role of Aromatic Solvent in Single-Site Aluminum I Chemistry: Insights from Theory. Chemistry 2017; 23:13957-13963. [PMID: 28730755 DOI: 10.1002/chem.201701642] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2017] [Indexed: 11/08/2022]
Abstract
The single-site activation of strong σ bonds (such as that of H-H, P-H, and N-H) remains a significant challenge in main-group chemistry, with only a few cases reported to date. In this regard, recent exciting experiments performed with aluminumI complexes hold significance because they have been seen to activate a variety of strong σ bonds. Such chemistry is generally seen to occur in aromatic solvents. Current computational studies with DFT reveal the interesting reason for this: an explicit aromatic solvent molecule acts as a catalyst by converting the aluminumI complex into aluminumIII during the process. Different cases of σ-bond activation by aluminumI complexes have been investigated and the efficiency of H-X (X=H, NHtBu, PPh2 ) bond activation in the presence of an explicit benzene solvent molecule is orders of magnitude higher than that in its absence. The current work therefore reveals the chemistry of aluminumI complexes to be richer and more complex than that previously realized, and shows it to be dependent on metal-solvent cooperativity; the first known example of its kind in main-group chemistry.
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Affiliation(s)
- Shailja Jain
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
| | - Kumar Vanka
- Physical and Materials Chemistry Division, CSIR-National Chemical Laboratory, Pune, 411008, India.,Academy of Scientific and Innovative Research (AcSIR), New Delhi, 110020, India
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32
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Robinson TP, Lo SK, De Rosa D, Aldridge S, Goicoechea JM. On the Ambiphilic Reactivity of Geometrically Constrained Phosphorus(III) and Arsenic(III) Compounds: Insights into Their Interaction with Ionic Substrates. Chemistry 2016; 22:15712-15724. [PMID: 27628576 PMCID: PMC5095867 DOI: 10.1002/chem.201603135] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2016] [Indexed: 11/05/2022]
Abstract
The ambiphilic nature of geometrically constrained Group 15 complexes bearing the N,N‐bis(3,5‐di‐tert‐butyl‐2‐phenolate)amide pincer ligand (ONO3−) is explored. Despite their differing reactivity towards nucleophilic substrates with polarised element–hydrogen bonds (e.g., NH3), both the phosphorus(III), P(ONO) (1 a), and arsenic(III), As(ONO) (1 b), compounds exhibit similar reactivity towards charged nucleophiles and electrophiles. Reactions of 1 a and 1 b with KOtBu or KNPh2 afford anionic complexes in which the nucleophilic anion associates with the pnictogen centre ([(tBuO)Pn(ONO)]− (Pn=P (2 a), As (2 b)) and [(Ph2N)Pn(ONO)]− (Pn=P (3 a), As (3 b)). Compound 2 a can subsequently be reacted with a proton source or benzylbromide to afford the phosphorus(V) compounds (tBuO)HP(ONO) (4 a) and (tBuO)BzP(ONO) (5 a), respectively, whereas analogous arsenic(V) compounds are inaccessible. Electrophilic substrates, such as HOTf and MeOTf, preferentially associate with the nitrogen atom of the ligand backbone of both 1 a and 1 b, giving rise to cationic species that can be rationalised as either ammonium salts or as amine‐stabilised phosphenium or arsenium complexes ([Pn{ON(H)O}]+ (Pn=P (6 a), As (6 b)) and [Pn{ON(Me)O}]+ (Pn=P (7 a), As (7 b)). Reaction of 1 a with an acid bearing a nucleophilic counteranion (such as HCl) gives rise to a phosphorus(V) compound HPCl(ONO) (8 a), whereas the analogous reaction with 1 b results in the addition of HCl across one of the As−O bonds to afford ClAs{(H)ONO} (8 b). Functionalisation at both the pnictogen centre and the ligand backbone is also possible by reaction of 7 a/7 b with KOtBu, which affords the neutral species (tBuO)Pn{ON(Me)O} (Pn=P (9 a), As (9 b)). The ambiphilic reactivity of these geometrically constrained complexes allows some insight into the mechanism of reactivity of 1 a towards small molecules, such as ammonia and water.
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Affiliation(s)
- Thomas P Robinson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Siu-Kwan Lo
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Daniel De Rosa
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Simon Aldridge
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK
| | - Jose M Goicoechea
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA, UK.
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33
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Ermert DM, Gordon JB, Abboud KA, Murray LJ. Synthesis of Trinuclear Tin(II), Germanium(II), and Aluminum(III) Cyclophane Complexes. Organometallics 2016. [DOI: 10.1021/acs.organomet.6b00354] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- David M. Ermert
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Jesse B. Gordon
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Khalil A. Abboud
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Leslie J. Murray
- Center
for Catalysis, Department
of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
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34
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Jakobsson K, Chu T, Nikonov GI. Hydrosilylation of Olefins Catalyzed by Well-Defined Cationic Aluminum Complexes: Lewis Acid versus Insertion Mechanisms. ACS Catal 2016. [DOI: 10.1021/acscatal.6b01694] [Citation(s) in RCA: 49] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Kayla Jakobsson
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, Canada L2S
| | - Terry Chu
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, Canada L2S
| | - Georgii I. Nikonov
- Department of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario, Canada L2S
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35
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Vícha J, Marek R, Straka M. High-Frequency 1H NMR Chemical Shifts of SnII and PbII Hydrides Induced by Relativistic Effects: Quest for PbII Hydrides. Inorg Chem 2016; 55:10302-10309. [DOI: 10.1021/acs.inorgchem.6b01575] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jan Vícha
- Center of Polymer Systems, University Institute, Tomas Bata University in Zlín, Třída T. Bati 5678, CZ-76001 Zlín, Czech Republic
| | - Radek Marek
- CEITEC-Central European Institute of Technology, Masaryk University, Kamenice 5/A4, CZ-62500 Brno, Czech Republic
| | - Michal Straka
- Institute
of Organic Chemistry and Biochemistry, Czech Academy of Sciences, Flemingovo nám. 2, CZ-16610 Prague, Czech Republic
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36
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Chu T, Boyko Y, Korobkov I, Kuzmina LG, Howard JAK, Nikonov GI. Oxidative Addition of Disulfides, Alkyl Sulfides, and Diphosphides to an Aluminum(I) Center. Inorg Chem 2016; 55:9099-104. [DOI: 10.1021/acs.inorgchem.6b01668] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Terry Chu
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Yaroslav Boyko
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
| | - Ilia Korobkov
- X-ray Core Facility,
Faculty of Science, University of Ottawa, 150 Louis Pasteur, Ottawa, Ontario K1N 6N5, Canada
| | - Lyudmila G. Kuzmina
- N. S. Kurnakov Institute of General and Inorganic Chemistry, 31 Leninskii Prospekt, Moscow 119991, Russia
| | - Judith A. K. Howard
- Department of Chemistry, Durham University, South Road, Durham DH1
3LE, United Kingdom
| | - Georgii I. Nikonov
- Department
of Chemistry, Brock University, 1812 Sir Isaac Brock Way, St. Catharines, Ontario L2S 3A1, Canada
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37
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Miller CJ, Chadha U, Ulibarri-Sanchez JR, Dickie DA, Kemp RA. Structure and Lewis-base reactivity of bicyclic low-valent germanium and tin complexes bridged by bis(diisopropylphosphino)amine. Polyhedron 2016. [DOI: 10.1016/j.poly.2016.01.028] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
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38
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Neutral zero-valent s-block complexes with strong multiple bonding. Nat Chem 2016; 8:638-42. [DOI: 10.1038/nchem.2542] [Citation(s) in RCA: 143] [Impact Index Per Article: 17.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2016] [Accepted: 04/29/2016] [Indexed: 01/14/2023]
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39
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Kuriakose N, Vanka K. Can main group systems act as superior catalysts for dihydrogen generation reactions? A computational investigation. Dalton Trans 2016; 45:5968-77. [PMID: 26084994 DOI: 10.1039/c5dt01058f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The protolytic cleavage of the O-H bond in water and alcohols is a very important reaction, and an important method for producing dihydrogen. Full quantum chemical studies with density functional theory (DFT) reveal that germanium based complexes, such as HC{CMeArB}2GeH (Ar = 2,6-(i)Pr2C6H3), with the assistance of silicon based compounds such as SiF3H, can perform significantly better than the existing state-of-the-art post-transition metal based systems for catalyzing dihydrogen generation from water and alcohols through the protolysis reaction.
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Affiliation(s)
- Nishamol Kuriakose
- National Chemical Laboratory (NCL), Dr. Homi Bhabha Road, Pashan, Pune -411008, Maharashtra, India.
| | - Kumar Vanka
- National Chemical Laboratory (NCL), Dr. Homi Bhabha Road, Pashan, Pune -411008, Maharashtra, India.
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40
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Abstract
Simple tin derivatives, Cp*2SnCl2 (1) and Ph2SnCl2 (2), catalyze the hydrophosphination of alkene substrates with diphenylphosphine. Competitive dehydrocoupling to give Ph4P2 was observed, but this side reaction can be mitigated when the catalysis is conducted under an H2 atmosphere. Efforts to prepare stable tin bis(phosphido) compounds commonly resulted in decomposition to Ph4P2. Lewis acidic inorganic tin compounds do not show dehydrocoupling reactivity. It was found that the Lewis acid, B(C6F5)3, is able to engage in the hydrophosphination of alkenes, but it is poorly effective under the conditions tested.
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Affiliation(s)
- John P W Stelmach
- Department of Chemistry, University of Vermont, Cook Physical Sciences Building, Burlington, Vermont 05405, USA.
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41
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Briand GG, Cairns SA, Decken A, Dickie CM, Kostelnik TI, Shaver MP. Strained metal bonding environments in methylindium dithiolates and their reactivity as initiators for the ring-opening polymerization of cyclic esters. J Organomet Chem 2016. [DOI: 10.1016/j.jorganchem.2016.01.020] [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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42
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Pöppler AC, Demers JP, Malon M, Singh AP, Roesky HW, Nishiyama Y, Lange A. Ultrafast Magic-Angle Spinning: Benefits for the Acquisition of Ultrawide-Line NMR Spectra of Heavy Spin-1/2 Nuclei. Chemphyschem 2016; 17:812-6. [DOI: 10.1002/cphc.201501136] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2015] [Indexed: 11/11/2022]
Affiliation(s)
- Ann-Christin Pöppler
- Department for NMR-based Structural Biology; Max Planck Institute for Biophysical Chemistry; Am Fassberg 11 37077 Göttingen Germany
- Department of Molecular Biophysics; Leibniz-Institut für Molekulare Pharmakologie (FMP); 13125 Berlin Germany
- Institut für Biologie; Humboldt-Universität zu Berlin; 10115 Berlin Germany
| | - Jean-Philippe Demers
- Department for NMR-based Structural Biology; Max Planck Institute for Biophysical Chemistry; Am Fassberg 11 37077 Göttingen Germany
- Department of Molecular Biophysics; Leibniz-Institut für Molekulare Pharmakologie (FMP); 13125 Berlin Germany
- Institut für Biologie; Humboldt-Universität zu Berlin; 10115 Berlin Germany
| | - Michal Malon
- JEOL RESONANCE Inc.; 3-1-2 Musashino Akishima Tokyo 196-8558 Japan
- RIKEN CLST-JEOL Collaboration Center, Suehiro-cho, Tsurumi; Yokohama Kanagawa 230-0045 Japan
| | - Amit Pratap Singh
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Herbert W. Roesky
- Institut für Anorganische Chemie; Universität Göttingen; Tammannstrasse 4 37077 Göttingen Germany
| | - Yusuke Nishiyama
- JEOL RESONANCE Inc.; 3-1-2 Musashino Akishima Tokyo 196-8558 Japan
- RIKEN CLST-JEOL Collaboration Center, Suehiro-cho, Tsurumi; Yokohama Kanagawa 230-0045 Japan
| | - Adam Lange
- Department for NMR-based Structural Biology; Max Planck Institute for Biophysical Chemistry; Am Fassberg 11 37077 Göttingen Germany
- Department of Molecular Biophysics; Leibniz-Institut für Molekulare Pharmakologie (FMP); 13125 Berlin Germany
- Institut für Biologie; Humboldt-Universität zu Berlin; 10115 Berlin Germany
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43
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Tashkandi NY, Pavelka LC, Caputo CA, Boyle PD, Power PP, Baines KM. Addition of alkynes to digermynes: experimental insight into the reaction pathway. Dalton Trans 2016; 45:7226-30. [DOI: 10.1039/c6dt01015f] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction pathway for the addition of alkynes to digermynes has been investigated using a mechanistic probe approach.
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Affiliation(s)
| | - Laura C. Pavelka
- Department of Chemistry
- University of Western Ontario
- London
- Canada
| | | | - Paul D. Boyle
- Department of Chemistry
- University of Western Ontario
- London
- Canada
| | - Philip P. Power
- Department of Chemistry
- University of California at Davis
- Davis
- USA
| | - Kim M. Baines
- Department of Chemistry
- University of Western Ontario
- London
- Canada
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44
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Yadav S, Saha S, Sen SS. Compounds with Low-Valent p-Block Elements for Small Molecule Activation and Catalysis. ChemCatChem 2015. [DOI: 10.1002/cctc.201501015] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Sandeep Yadav
- Inorganic Chemistry and Catalysis Division; CSIR-National Chemical Laboratory; Dr. Homi Bhabha Road, Pashan Pune 411008 India
| | - Sumana Saha
- Inorganic Chemistry and Catalysis 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
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45
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Vránová I, Alonso M, Lo R, Sedlák R, Jambor R, Růžička A, De Proft F, Hobza P, Dostál L. From Dibismuthenes to Three- and Two-Coordinated Bismuthinidenes by Fine Ligand Tuning: Evidence for Aromatic BiC3N Rings through a Combined Experimental and Theoretical Study. Chemistry 2015; 21:16917-28. [PMID: 26434943 DOI: 10.1002/chem.201502724] [Citation(s) in RCA: 65] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Indexed: 11/07/2022]
Affiliation(s)
- Iva Vránová
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic)
| | - Mercedes Alonso
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels (Belgium).
| | - Rabindranath Lo
- Department of Molecular Modelling, Institute of Organic Chemistry and Biochemistry ASCR, v.v.i., Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic)
| | - Robert Sedlák
- Department of Molecular Modelling, Institute of Organic Chemistry and Biochemistry ASCR, v.v.i., Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic)
| | - Roman Jambor
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic)
| | - Aleš Růžička
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic)
| | - Frank De Proft
- Eenheid Algemene Chemie (ALGC), Vrije Universiteit Brussel (VUB), Pleinlaan 2, 1050 Brussels (Belgium)
| | - Pavel Hobza
- Department of Molecular Modelling, Institute of Organic Chemistry and Biochemistry ASCR, v.v.i., Flemingovo nám. 2, 166 10 Prague 6 (Czech Republic)
| | - Libor Dostál
- Department of General and Inorganic Chemistry, Faculty of Chemical Technology, University of Pardubice, Studentská 573, Pardubice 532 10 (Czech Republic).
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46
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Robinson TP, De Rosa DM, Aldridge S, Goicoechea JM. E-H Bond Activation of Ammonia and Water by a Geometrically Constrained Phosphorus(III) Compound. Angew Chem Int Ed Engl 2015; 54:13758-63. [PMID: 26404498 PMCID: PMC4648037 DOI: 10.1002/anie.201506998] [Citation(s) in RCA: 128] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Indexed: 12/03/2022]
Abstract
The synthesis of a phosphorus(III) compound bearing a N,N-bis(3,5-di-tert-butyl-2-phenoxy)amide ligand is reported. This species has been found to react with ammonia and water, activating the E–H bonds in both substrates by formal oxidative addition to afford the corresponding phosphorus(V) compounds. In the case of water, both O–H bonds can be activated, splitting the molecule into its constituent elements. To our knowledge, this is the first example of a compound based on main group elements that sequentially activates water in this manner.
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Affiliation(s)
- Thomas P Robinson
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA (UK)
| | - Daniel M De Rosa
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA (UK)
| | - Simon Aldridge
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA (UK).
| | - Jose M Goicoechea
- Department of Chemistry, University of Oxford, Chemistry Research Laboratory, 12 Mansfield Road, Oxford, OX1 3TA (UK).
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47
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Robinson TP, De Rosa DM, Aldridge S, Goicoechea JM. E-H Bond Activation of Ammonia and Water by a Geometrically Constrained Phosphorus(III) Compound. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201506998] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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48
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Zhao L, Jones C, Frenking G. Reaction Mechanism of the Symmetry-Forbidden [2+2] Addition of Ethylene and Acetylene to Amido-Substituted Digermynes and Distannynes Ph2NEENPh2, (E=Ge, Sn): A Theoretical Study. Chemistry 2015; 21:12405-13. [DOI: 10.1002/chem.201501457] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Indexed: 11/11/2022]
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49
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Hadlington TJ, Li J, Hermann M, Davey A, Frenking G, Jones C. Reactivity of Amido-Digermynes, LGeGeL (L = Bulky Amide), toward Olefins and Related Molecules: Facile Reduction, C–H Activation, and Reversible Cycloaddition of Unsaturated Substrates. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00206] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Terrance J. Hadlington
- School of Chemistry, Monash University, P.O. Box 23, Melbourne, Victoria 3800, Australia
| | - Jiaye Li
- School of Chemistry, Monash University, P.O. Box 23, Melbourne, Victoria 3800, Australia
| | - Markus Hermann
- Fachbereich Chemie, Philipps-Universität Marburg, 35032, Marburg, Germany
| | - Amelia Davey
- School of Chemistry, Monash University, P.O. Box 23, Melbourne, Victoria 3800, Australia
| | - Gernot Frenking
- Fachbereich Chemie, Philipps-Universität Marburg, 35032, Marburg, Germany
- Donostia International Physics Center (DIPC), P.K. 1072, 20080 Donostia, Spain
| | - Cameron Jones
- School of Chemistry, Monash University, P.O. Box 23, Melbourne, Victoria 3800, Australia
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50
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Hadlington TJ, Schwarze B, Izgorodina EI, Jones C. Two-coordinate hydrido-germylenes. Chem Commun (Camb) 2015; 51:6854-7. [PMID: 25791698 DOI: 10.1039/c5cc01314c] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The first structurally characterised two-coordinate hydrido-germylenes, :Ge(H)L (L = -N(Ar){Si(OBu)}, Ar = C6H2{C(H)Ph2}2R-2,6,4; R = Pr(i) ((tBuO)L(†)), Me ((tBuO)L*)), have been prepared, and their dimerisation shown to be thermodynamically unfavourable, largely due to the extreme steric bulk of their amide ligands.
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Affiliation(s)
- Terrance J Hadlington
- School of Chemistry, Monash University, P.O. Box 23, Melbourne, VIC 3800, Australia.
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