1
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Zapf L, Finze M. Lewis Acid Decorated Hexacyanodiborane(6) Dianion. Angew Chem Int Ed Engl 2024; 63:e202401681. [PMID: 38530744 DOI: 10.1002/anie.202401681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2024] [Revised: 03/03/2024] [Accepted: 03/04/2024] [Indexed: 03/28/2024]
Abstract
First examples of diborane(6) dianions decorated with weakly coordination B(C6F5)3 (BCF) groups and SiEt3 + moieties have been synthesized demonstrating the synthetic potential of the [B2(CN)6]2- dianion. [B2{CNB(C6F5)3}6]2- (1) was isolated as potassium and tetrabutylammonium salt. 1 is a rare example for a weakly coordinating dianion and it was used for the stabilization of the carbocation [Ph3C]+ and the oxonium acid [H(OEt2)2]+. Reaction of [Ph3C]21 with HSiEt3 resulted in the silylated neutral diborane(6) [B2{CNB(C6F5)3}4(CNSiEt3)2] (2) in which two BCF groups have been selectively replaced by SiEt3 + substituents, underscoring the stability and chemical versatility of the [B2(CN)6]2- dianion. The chemical properties and physicochemical data of 1 and 2 provide insight into electronic, coordinating, and steric properties of theses novel diborane(6) compounds.
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Affiliation(s)
- Ludwig Zapf
- Institut für nachhaltige Chemie & Katalyse mit Bor (ICB) Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
| | - Maik Finze
- Institut für nachhaltige Chemie & Katalyse mit Bor (ICB) Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg, Am Hubland, 97074, Würzburg, Germany
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2
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Exner RM, Jenne C, Wegener B. Electrochemical Synthesis of Triphenylphosphine Coinage Metal Complexes stabilized by
closo
‐Dodecaborates [B
12
X
12
]
2−
(X=H, F, Cl, Br, I). Z Anorg Allg Chem 2021. [DOI: 10.1002/zaac.202000479] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Rüdiger M. Exner
- Fakultät für Mathematik und Naturwissenschaften Bergische Universität Wuppertal Gaußstraße 20 42119 Wuppertal Germany
| | - Carsten Jenne
- Fakultät für Mathematik und Naturwissenschaften Bergische Universität Wuppertal Gaußstraße 20 42119 Wuppertal Germany
| | - Bianca Wegener
- Fakultät für Mathematik und Naturwissenschaften Bergische Universität Wuppertal Gaußstraße 20 42119 Wuppertal Germany
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3
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Asmis KR, Beele BB, Jenne C, Kawa S, Knorke H, Nierstenhöfer MC, Wang XB, Warneke J, Warneke Z, Yuan Q. Synthesis, Electronic Properties and Reactivity of [B 12 X 11 (NO 2 )] 2- (X=F-I) Dianions. Chemistry 2020; 26:14594-14601. [PMID: 33017100 PMCID: PMC7756457 DOI: 10.1002/chem.202003537] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2020] [Revised: 08/10/2020] [Indexed: 11/25/2022]
Abstract
Nitro‐functionalized undecahalogenated closo‐dodecaborates [B12X11(NO2)]2− were synthesized in high purities and characterized by NMR, IR, and Raman spectroscopy, single crystal X‐diffraction, mass spectrometry, and gas‐phase ion vibrational spectroscopy. The NO2 substituent leads to an enhanced electronic and electrochemical stability compared to the parent perhalogenated [B12X12]2− (X=F–I) dianions evidenced by photoelectron spectroscopy, cyclic voltammetry, and quantum‐chemical calculations. The stabilizing effect decreases from X=F to X=I. Thermogravimetric measurements of the salts indicate the loss of the nitric oxide radical (NO.). The homolytic NO. elimination from the dianion under very soft collisional excitation in gas‐phase ion experiments results in the formation of the radical [B12X11O]2−.. Theoretical investigations suggest that the loss of NO. proceeds via the rearrangement product [B12X11(ONO)]2−. The O‐bonded nitrosooxy structure is thermodynamically more stable than the N‐bonded nitro structure and its formation by radical recombination of [B12X11O]2−. and NO. is demonstrated.
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Affiliation(s)
- Knut R Asmis
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103, Leipzig, Germany
| | - Björn B Beele
- Fakultät für Mathematik und Naturwissenschaften, Anorganische Chemie, Bergische Universität Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany
| | - Carsten Jenne
- Fakultät für Mathematik und Naturwissenschaften, Anorganische Chemie, Bergische Universität Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany
| | - Sebastian Kawa
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103, Leipzig, Germany
| | - Harald Knorke
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103, Leipzig, Germany
| | - Marc C Nierstenhöfer
- Fakultät für Mathematik und Naturwissenschaften, Anorganische Chemie, Bergische Universität Wuppertal, Gaußstr. 20, 42119, Wuppertal, Germany
| | - Xue-Bin Wang
- Physical Sciences Division, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99352, USA
| | - Jonas Warneke
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103, Leipzig, Germany.,Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318, Leipzig, Germany
| | - Ziyan Warneke
- Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103, Leipzig, Germany
| | - Qinqin Yuan
- Physical Sciences Division, Pacific Northwest National Laboratory, 902 Battelle Boulevard, Richland, WA, 99352, USA
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4
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Zhang Y, Wang T, Wang L, Sun Y, Lin F, Liu J, Duttwyler S. RhIII
-Catalyzed Functionalization of closo
-Dodecaborates by Selective B−H Activation: Bypassing Competitive C−H Activation. Chemistry 2018; 24:15812-15817. [DOI: 10.1002/chem.201803455] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2018] [Indexed: 12/29/2022]
Affiliation(s)
- Yuanbin Zhang
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Tao Wang
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Lingyao Wang
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Yuji Sun
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Furong Lin
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Jiyong Liu
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
| | - Simon Duttwyler
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P. R. China
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5
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Sun Y, Zhang J, Zhang Y, Liu J, van der Veen S, Duttwyler S. The closo-Dodecaborate Dianion Fused with Oxazoles Provides 3D Diboraheterocycles with Selective Antimicrobial Activity. Chemistry 2018; 24:10364-10371. [PMID: 29738073 DOI: 10.1002/chem.201801602] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Revised: 05/05/2018] [Indexed: 11/11/2022]
Abstract
The synthesis and application of icosahedral boron cluster compounds has been studied extensively since their discovery several decades ago; however, two aspects of their chemistry have received little attention: The possibility to form inorganic/organic fused boraheterocycles and their potential to act as antimicrobial agents. This work comprises the preparation of a class of 3D diborabenzoxazole analogues with the closo-dodecaborate in place of the benzene moiety. The presented synthetic procedures provide access to a wide range of diboraheterocycles under mild conditions. These 3D heterocycles exhibit strong and selective antimicrobial activity against Neisseria gonorrhoeae, a widespread bacterial pathogen that has shown increasing incidences of multidrug resistance and for which the development of new antimicrobial compounds is urgently needed.
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Affiliation(s)
- Yuji Sun
- Department of Chemistry, Zhejiang University, Hangzhou, P.R. China
| | - Jianglin Zhang
- Department of Medical Microbiology and Parasitology, School of Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Yuanbin Zhang
- Department of Chemistry, Zhejiang University, Hangzhou, P.R. China
| | - Jiyong Liu
- Department of Chemistry, Zhejiang University, Hangzhou, P.R. China
| | - Stijn van der Veen
- Department of Microbiology and Parasitology, Collaborative Innovation Center for Diagnosis, and Treatment of Infectious Diseases, School of Medicine, Zhejiang University, Hangzhou, P.R. China
| | - Simon Duttwyler
- Department of Chemistry, Zhejiang University, Hangzhou, P.R. China
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6
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Polyhalogenated Decaborate and 1-Ammoniododecaborate Ions: An Improved Synthesis with Elemental Halogens, and Physicochemical and Chemical Properties. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700651] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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7
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Bolli C, Derendorf J, Jenne C, Keßler M. Halogenatedcloso-Dodecaborate Anions Stabilize Weakly Bound [(Me3NH)3X]2+(X = Cl, Br) Dications in the Solid State. Eur J Inorg Chem 2017. [DOI: 10.1002/ejic.201700620] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Christoph Bolli
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaussstr. 20 42119 Wuppertal Germany
| | - Janis Derendorf
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaussstr. 20 42119 Wuppertal Germany
| | - Carsten Jenne
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaussstr. 20 42119 Wuppertal Germany
| | - Mathias Keßler
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaussstr. 20 42119 Wuppertal Germany
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8
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Derendorf J, Jenne C, Keßler M. The First Step of the Oxidation of Elemental Sulfur: Crystal Structure of the Homopolyatomic Sulfur Radical Cation [S8
].+. Angew Chem Int Ed Engl 2017; 56:8281-8284. [DOI: 10.1002/anie.201703083] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Janis Derendorf
- Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstr. 20 42119 Wuppertal Germany
| | - Carsten Jenne
- Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstr. 20 42119 Wuppertal Germany
| | - Mathias Keßler
- Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstr. 20 42119 Wuppertal Germany
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9
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Derendorf J, Jenne C, Keßler M. Der erste Schritt der Oxidation elementaren Schwefels - die Struktur des Schwefelradikalkations [S8
].+
im Kristall. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201703083] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Janis Derendorf
- Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstraße 20 42119 Wuppertal Deutschland
| | - Carsten Jenne
- Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstraße 20 42119 Wuppertal Deutschland
| | - Mathias Keßler
- Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften; Bergische Universität Wuppertal; Gaußstraße 20 42119 Wuppertal Deutschland
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10
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Rohdenburg M, Mayer M, Grellmann M, Jenne C, Borrmann T, Kleemiss F, Azov VA, Asmis KR, Grabowsky S, Warneke J. Superelectrophilic Behavior of an Anion Demonstrated by the Spontaneous Binding of Noble Gases to [B 12 Cl 11 ]<sup/>. Angew Chem Int Ed Engl 2017; 56:7980-7985. [PMID: 28560843 DOI: 10.1002/anie.201702237] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Indexed: 11/06/2022]
Abstract
It is common and chemically intuitive to assign cations electrophilic and anions nucleophilic reactivity, respectively. Herein, we demonstrate a striking violation of this concept: The anion [B12 Cl11 ]- spontaneously binds to the noble gases (Ngs) xenon and krypton at room temperature in a reaction that is typical of "superelectrophilic" dications. [B12 Cl11 Ng]- adducts, with Ng binding energies of 80 to 100 kJ mol-1 , contain B-Ng bonds with a substantial degree of covalent interaction. The electrophilic nature of the [B12 Cl11 ]- anion is confirmed spectroscopically by the observation of a blue shift of the CO stretching mode in the IR spectrum of [B12 Cl11 CO]- and theoretically by investigation of its electronic structure. The orientation of the electric field at the reactive site of [B12 Cl11 ]- results in an energy barrier for the approach of polar molecules and facilitates the formation of Ng adducts that are not detected with reactive cations such as [C6 H5 ]+ . This introduces the new chemical concept of "dipole-discriminating electrophilic anions."
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Affiliation(s)
- Markus Rohdenburg
- Universität Bremen, Institut für Angewandte und Physikalische Chemie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Martin Mayer
- Universität Leipzig, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Linnéstr. 2, 04103, Leipzig, Germany
| | - Max Grellmann
- Universität Leipzig, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Linnéstr. 2, 04103, Leipzig, Germany
| | - Carsten Jenne
- Bergische Universität Wuppertal, Anorganische Chemie, Fakultät für Mathematik und Naturwissenschaften, Gaußstr. 20, 42119, Wuppertal, Germany
| | - Tobias Borrmann
- Universität Bremen, Institut für Angewandte und Physikalische Chemie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Florian Kleemiss
- Universität Bremen, Institut für Anorganische Chemie und Kristallographie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Vladimir A Azov
- Universität Bremen, Institut für Angewandte und Physikalische Chemie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany.,N. D. Zelinsky Institute of Organic Chemistry, Russian Academy of Sciences, Leninsky prospect 47, Moscow, 119991, Russia
| | - Knut R Asmis
- Universität Leipzig, Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Linnéstr. 2, 04103, Leipzig, Germany
| | - Simon Grabowsky
- Universität Bremen, Institut für Anorganische Chemie und Kristallographie, Fachbereich 2-Biologie/Chemie, Leobener Str. NW2, 28359, Bremen, Germany
| | - Jonas Warneke
- Pacific Northwest National Laboratory, Physical Science Division, Richland, WA, 99352, USA
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11
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Rohdenburg M, Mayer M, Grellmann M, Jenne C, Borrmann T, Kleemiss F, Azov VA, Asmis KR, Grabowsky S, Warneke J. Superelektrophiles Verhalten eines Anions demonstriert durch spontane Bindung von Edelgasen an [B12
Cl11
]−. Angew Chem Int Ed Engl 2017. [DOI: 10.1002/ange.201702237] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Markus Rohdenburg
- Universität Bremen; Institut für Angewandte und Physikalische Chemie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Martin Mayer
- Universität Leipzig; Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Linnéstr. 2 04103 Leipzig Deutschland
| | - Max Grellmann
- Universität Leipzig; Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Linnéstr. 2 04103 Leipzig Deutschland
| | - Carsten Jenne
- Bergische Universität Wuppertal; Anorganische Chemie; Fakultät für Mathematik und Naturwissenschaften; Gaußstr. 20 42119 Wuppertal Deutschland
| | - Tobias Borrmann
- Universität Bremen; Institut für Angewandte und Physikalische Chemie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Florian Kleemiss
- Universität Bremen; Institut für Anorganische Chemie und Kristallographie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Vladimir A. Azov
- Universität Bremen; Institut für Angewandte und Physikalische Chemie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
- N. D. Zelinsky Institut für Organische Chemie; Russische Akademie der Wissenschaften; Leninsky prospect 47 Moskau 119991 Russland
| | - Knut R. Asmis
- Universität Leipzig; Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie; Linnéstr. 2 04103 Leipzig Deutschland
| | - Simon Grabowsky
- Universität Bremen; Institut für Anorganische Chemie und Kristallographie; Fachbereich 2 - Biologie/Chemie; Leobener Str. NW2 28359 Bremen Deutschland
| | - Jonas Warneke
- Pacific Northwest National Laboratory; Physical Science Division; Richland WA 99352 USA
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12
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Zhang Y, Sun Y, Lin F, Liu J, Duttwyler S. Rhodium(III)-Catalyzed Alkenylation-Annulation ofcloso-Dodecaborate Anions through Double B−H Activation at Room Temperature. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607867] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Affiliation(s)
- Yuanbin Zhang
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Yuji Sun
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Furong Lin
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Jiyong Liu
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Simon Duttwyler
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
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13
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Zhang Y, Sun Y, Lin F, Liu J, Duttwyler S. Rhodium(III)-Catalyzed Alkenylation-Annulation ofcloso-Dodecaborate Anions through Double B−H Activation at Room Temperature. Angew Chem Int Ed Engl 2016; 55:15609-15614. [DOI: 10.1002/anie.201607867] [Citation(s) in RCA: 101] [Impact Index Per Article: 12.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2016] [Revised: 09/29/2016] [Indexed: 11/10/2022]
Affiliation(s)
- Yuanbin Zhang
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Yuji Sun
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Furong Lin
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Jiyong Liu
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
| | - Simon Duttwyler
- Department of Chemistry; Zhejiang University; 38 Zheda Road 310027 Hangzhou P.R. China
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14
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Bertocco P, Bolli C, Derendorf J, Jenne C, Klein A, Stirnat K. The Me3NB12Cl11.Radical: A Strong One-Electron Oxidizing Agent. Chemistry 2016; 22:16032-16036. [DOI: 10.1002/chem.201603924] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2016] [Indexed: 12/17/2022]
Affiliation(s)
- Philipp Bertocco
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaußstrasse 20 42119 Wuppertal Germany
| | - Christoph Bolli
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaußstrasse 20 42119 Wuppertal Germany
| | - Janis Derendorf
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaußstrasse 20 42119 Wuppertal Germany
| | - Carsten Jenne
- Fakultät für Mathematik und Naturwissenschaften; Anorganische Chemie; Bergische Universität Wuppertal; Gaußstrasse 20 42119 Wuppertal Germany
| | - Axel Klein
- EPR Spectroscopy,Institut für Anorganische Chemie; Department für Chemie; Universität zu Köln; Greinstrasse 6 50939 Köln Germany
| | - Kathrin Stirnat
- EPR Spectroscopy,Institut für Anorganische Chemie; Department für Chemie; Universität zu Köln; Greinstrasse 6 50939 Köln Germany
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15
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Jenne C, Keßler M, Warneke J. Protic anions [H(B12X12)]- (X = F, Cl, Br, I) that act as Brønsted acids in the gas phase. Chemistry 2015; 21:5887-91. [PMID: 25735766 DOI: 10.1002/chem.201500034] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2015] [Indexed: 11/07/2022]
Abstract
The acidity of protic cations and neutral molecules has been studied extensively in the gas phase, and the gas-phase acidity has been established previously as a very useful measure of the intrinsic acidity of neutral and cationic compounds. However, no data for any anionic acids were available prior to this study. The protic anions [H(B12X12)](-) (X = F, Cl, Br, I) are expected to be the most acidic anions known to date. Therefore, they were investigated in this study with respect to their ability to protonate neutral molecules in the gas phase by using a combination of mass spectrometry and quantum-chemical calculations. For the first time it was shown that in the gas phase protic anions are also able to protonate neutral molecules and thus act as Brønsted acids. According to theoretical calculations, [H(B12I12)](-) is the most acidic gas-phase anion, whereas in actual protonation experiments [H(B12Cl12)](-) is the most potent gas-phase acidic anion for the protonation of neutral molecules. This discrepancy is explained by ion pairing and kinetic effects.
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Affiliation(s)
- Carsten Jenne
- Fachbereich C, Anorganische Chemie, Bergische Universität Wuppertal, Gaussstrasse 20, 42119 Wuppertal (Germany).
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16
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Wegener M, Huber F, Bolli C, Jenne C, Kirsch SF. Silver-Free Activation of Ligated Gold(I) Chlorides: The Use of [Me3NB12Cl11]−as a Weakly Coordinating Anion in Homogeneous Gold Catalysis. Chemistry 2014; 21:1328-36. [DOI: 10.1002/chem.201404487] [Citation(s) in RCA: 63] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Indexed: 01/15/2023]
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17
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Boeré RT, Derendorf J, Jenne C, Kacprzak S, Keßler M, Riebau R, Riedel S, Roemmele TL, Rühle M, Scherer H, Vent-Schmidt T, Warneke J, Weber S. On the Oxidation of the Three-Dimensional Aromatics [B12X12]2−(X=F, Cl, Br, I). Chemistry 2014; 20:4447-59. [DOI: 10.1002/chem.201304405] [Citation(s) in RCA: 59] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2013] [Indexed: 11/10/2022]
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18
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XeF2/Fluoride Acceptors as Versatile One-Electron Oxidants. Angew Chem Int Ed Engl 2013; 52:12838-42. [DOI: 10.1002/anie.201307161] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2013] [Indexed: 11/07/2022]
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Poleschner H, Seppelt K. XeF2/Fluoridakzeptoren als vielseitige Einelektronen-Oxidationsmittel. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201307161] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Asay M, Kefalidis CE, Estrada J, Weinberger DS, Wright J, Moore CE, Rheingold AL, Maron L, Lavallo V. Isolation of a Carborane-Fused Triazole Radical Anion. Angew Chem Int Ed Engl 2013; 52:11560-3. [DOI: 10.1002/anie.201306764] [Citation(s) in RCA: 45] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2013] [Indexed: 11/10/2022]
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Asay M, Kefalidis CE, Estrada J, Weinberger DS, Wright J, Moore CE, Rheingold AL, Maron L, Lavallo V. Isolation of a Carborane-Fused Triazole Radical Anion. Angew Chem Int Ed Engl 2013. [DOI: 10.1002/ange.201306764] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kessler M, Knapp C, Zogaj A. Cationic Dialkyl Metal Compounds of Group 13 Elements (E = Al, Ga, In) Stabilized by the Weakly Coordinating Dianion [B12Cl12]2–. Organometallics 2011. [DOI: 10.1021/om2003333] [Citation(s) in RCA: 49] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mathias Kessler
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
| | - Carsten Knapp
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
| | - Ardiana Zogaj
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs-Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
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Warneke J, Dülcks T, Knapp C, Gabel D. Collision-induced gas-phase reactions of perhalogenated closo-dodecaborate clusters – a comparative study. Phys Chem Chem Phys 2011; 13:5712-21. [DOI: 10.1039/c0cp02386h] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Boeré RT, Kacprzak S, Keßler M, Knapp C, Riebau R, Riedel S, Roemmele TL, Rühle M, Scherer H, Weber S. Oxidation von closo-[B12Cl12]2− zum Radikalanion [B12Cl12].− und zum neutralen B12Cl12. Angew Chem Int Ed Engl 2010. [DOI: 10.1002/ange.201004755] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Oxidation of closo-[B12Cl12]2− to the Radical Anion [B12Cl12].− and to Neutral B12Cl12. Angew Chem Int Ed Engl 2010; 50:549-52. [DOI: 10.1002/anie.201004755] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Kessler M, Knapp C, Sagawe V, Scherer H, Uzun R. Synthesis, Characterization, and Crystal Structures of Silylium Compounds of the Weakly Coordinating Dianion [B12Cl12]2−. Inorg Chem 2010; 49:5223-30. [DOI: 10.1021/ic100337k] [Citation(s) in RCA: 75] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Mathias Kessler
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
| | - Carsten Knapp
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
| | - Vanessa Sagawe
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
| | - Harald Scherer
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
| | - Rabiya Uzun
- Institut für Anorganische und Analytische Chemie, Albert-Ludwigs Universität Freiburg, Albertstrasse 21, 79104 Freiburg i. Br., Germany
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Derendorf J, Keßler M, Knapp C, Rühle M, Schulz C. Alkali metal-sulfur dioxide complexes stabilized by halogenated closo-dodecaborate anions. Dalton Trans 2010; 39:8671-8. [DOI: 10.1039/c0dt00521e] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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