1
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Wang J, Cai J, Ren KX, Liu L, Zheng SJ, Wang ZY, Zang SQ. Stepwise structural evolution toward robust carboranealkynyl-protected copper nanocluster catalysts for nitrate electroreduction. SCIENCE ADVANCES 2024; 10:eadn7556. [PMID: 38691609 PMCID: PMC11062576 DOI: 10.1126/sciadv.adn7556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/27/2023] [Accepted: 03/28/2024] [Indexed: 05/03/2024]
Abstract
Atomically precise metal nanoclusters (NCs) are emerging as idealized model catalysts for imprecise metal nanoparticles to unveil their structure-activity relationship. However, the directional synthesis of robust metal NCs with accessible catalytic active sites remains a great challenge. In this work, we achieved bulky carboranealkynyl-protected copper NCs, the monomer Cu13·3PF6 and nido-carboranealkynyl bridged dimer Cu26·4PF6, with fair stability as well as accessible open metal sites step by step through external ligand shell modification and metal-core evolution. Both Cu13·3PF6 and Cu26·4PF6 demonstrate remarkable catalytic activity and selectivity in electrocatalytic nitrate (NO3-) reduction to NH3 reaction, with the dimer Cu26·4PF6 displaying superior performance. The mechanism of this catalytic reaction was elucidated through theoretical computations in conjunction with in situ FTIR spectra. This study not only provides strategies for accessing desired copper NC catalysts but also establishes a platform to uncover the structure-activity relationship of copper NCs.
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Affiliation(s)
| | | | - Kai-Xin Ren
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Lin Liu
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
| | - Su-Jun Zheng
- Henan Key Laboratory of Crystalline Molecular Functional Materials, Henan International Joint Laboratory of Tumor Theranostical Cluster Materials, Green Catalysis Center, and College of Chemistry, Zhengzhou University, Zhengzhou 450001, China
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2
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Sivaev IB, Anufriev SA, Shmalko AV. How substituents at boron atoms affect the CH-acidity and the electron-withdrawing effect of the ortho-carborane cage: A close look on the 1H NMR spectra. Inorganica Chim Acta 2022. [DOI: 10.1016/j.ica.2022.121339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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3
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Useini L, Mojić M, Laube M, Lönnecke P, Dahme J, Sárosi MB, Mijatović S, Maksimović-Ivanić D, Pietzsch J, Hey-Hawkins E. Carboranyl Analogues of Mefenamic Acid and Their Biological Evaluation. ACS OMEGA 2022; 7:24282-24291. [PMID: 35874202 PMCID: PMC9301635 DOI: 10.1021/acsomega.2c01523] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Mefenamic acid represents a widely used nonsteroidal anti-inflammatory drug (NSAID) to treat the pain of postoperative surgery and heavy menstrual bleeding. Like other NSAIDs, mefenamic acid inhibits the synthesis of prostaglandins by nonselectively blocking cyclooxygenase (COX) isoforms COX-1 and COX-2. For the improved selectivity of the drug and, therefore, reduced related side effects, the carborane analogues of mefenamic acid were evaluated. The ortho-, meta-, and para-carborane derivatives were synthesized in three steps: halogenation of the respective cluster, followed by a Pd-catalyzed B-N coupling and hydrolysis of the nitrile derivatives under acidic conditions. The COX inhibitory activity and cytotoxicity for different cancer cell lines revealed that the carborane analogues have stronger antitumor potential compared to their parent organic compound.
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Affiliation(s)
- Liridona Useini
- Faculty
of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
| | - Marija Mojić
- Department
of Immunology, Institute for Biological Research “Sinisa Stankovic”,
National Institute of Republic of Serbia, University of Belgrade, Bul. Despota Stefana 142, 11060 Belgrade, Serbia
| | - Markus Laube
- Department
of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum
Dresden-Rossendorf (HZDR), Bautzner Landstrasse 400, 01328 Dresden, Germany
| | - Peter Lönnecke
- Faculty
of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
| | - Jonas Dahme
- Wilhelm-Ostwald-Institute
for Physical and Theoretical Chemistry, Leipzig University, Linnéstraße 2, 04103 Leipzig, Germany
| | - Menyhárt B. Sárosi
- Wilhelm-Ostwald-Institute
for Physical and Theoretical Chemistry, Leipzig University, Linnéstraße 2, 04103 Leipzig, Germany
| | - Sanja Mijatović
- Department
of Immunology, Institute for Biological Research “Sinisa Stankovic”,
National Institute of Republic of Serbia, University of Belgrade, Bul. Despota Stefana 142, 11060 Belgrade, Serbia
| | - Danijela Maksimović-Ivanić
- Department
of Immunology, Institute for Biological Research “Sinisa Stankovic”,
National Institute of Republic of Serbia, University of Belgrade, Bul. Despota Stefana 142, 11060 Belgrade, Serbia
| | - Jens Pietzsch
- Department
of Radiopharmaceutical and Chemical Biology, Institute of Radiopharmaceutical Cancer Research, Helmholtz-Zentrum
Dresden-Rossendorf (HZDR), Bautzner Landstrasse 400, 01328 Dresden, Germany
- Faculty
of Chemistry and Food Chemistry, School of Science, Technical University Dresden, 01069 Dresden, Germany
| | - Evamarie Hey-Hawkins
- Faculty
of Chemistry and Mineralogy, Institute of Inorganic Chemistry, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany
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4
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Transition metal catalyzed synthesis of derivatives of polyhedral boron hydrides with B N, B P, B O and B S bonds. ADVANCES IN CATALYSIS 2022. [DOI: 10.1016/bs.acat.2022.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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5
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Comprehensive exploration of chemical space using trisubstituted carboranes. Sci Rep 2021; 11:24101. [PMID: 34916538 PMCID: PMC8677773 DOI: 10.1038/s41598-021-03459-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2021] [Accepted: 11/24/2021] [Indexed: 11/16/2022] Open
Abstract
A total of 42 trisubstituted carboranes categorised into five scaffolds were systematically designed and synthesized by exploiting the different reactivities of the twelve vertices of o-, m-, and p-carboranes to cover all directions in chemical space. Significant inhibitors of hypoxia inducible factor transcriptional activitay were mainly observed among scaffold V compounds (e.g., Vi–m, and Vo), whereas anti-rabies virus activity was observed among scaffold V (Va–h), scaffold II (IIb–g), and scaffold IV (IVb) compounds. The pharmacophore model predicted from compounds with scaffold V, which exhibited significant anti-rabies virus activity, agreed well with compounds IIb–g with scaffold II and compound IVb with scaffold IV. Normalized principal moment of inertia analysis indicated that carboranes with scaffolds I–V cover all regions in the chemical space. Furthermore, the first compounds shown to stimulate the proliferation of the rabies virus were found among scaffold V carboranes.
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6
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Bednarska-Szczepaniak K, Mieczkowski A, Kierozalska A, Pavlović Saftić D, Głąbała K, Przygodzki T, Stańczyk L, Karolczak K, Watała C, Rao H, Gao ZG, Jacobson KA, Leśnikowski ZJ. Synthesis and evaluation of adenosine derivatives as A 1, A 2A, A 2B and A 3 adenosine receptor ligands containing boron clusters as phenyl isosteres and selective A 3 agonists. Eur J Med Chem 2021; 223:113607. [PMID: 34171656 PMCID: PMC8448983 DOI: 10.1016/j.ejmech.2021.113607] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 05/27/2021] [Accepted: 05/28/2021] [Indexed: 01/30/2023]
Abstract
A series of adenosine and 2'-deoxyadenosine pairs modified with a 1,12-dicarba-closo-dodecaborane cluster or alternatively with a phenyl group at the same position was synthesized, and their affinity was determined at A1, A2A, A2B and A3 adenosine receptors (ARs). While AR affinity differences were noted, a general tendency to preferentially bind A3 AR over other ARs was observed for most tested ligands. In particular, 5'-ethylcarbamoyl-N6-(3-phenylpropyl)adenosine (18), N6-(3-phenylpropyl)-2-chloroadenosine (24) and N6-(3-phenylpropyl)adenosine (40) showed nanomolar A3 affinity (Ki 4.5, 6.4 and 7.5 nM, respectively). Among the boron cluster-containing compounds, the highest A3 affinity (Ki 206 nM) was for adenosine derivative 41 modified at C2. In the matched molecular pairs, analogs bearing boron clusters were found to show lower binding affinity for adenosine receptors than the corresponding phenyl analogs. Nevertheless, interestingly, several boron cluster modified adenosine ligands showed significantly higher A3 receptor selectivity than the corresponding phenyl analogs: 7vs. 8, 15vs. 16, 17vs. 18.
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Affiliation(s)
| | - Adam Mieczkowski
- Laboratory of Biological Chemistry of Metal Ions, Institute of Biochemistry and Biophysics PAS, Pawińskiego 5a, 02-106, Warsaw, Poland
| | - Aleksandra Kierozalska
- Laboratory of Medicinal Chemistry, Institute of Medical Biology PAS, Lodowa 106, 92-232, Łódź, Poland
| | - Dijana Pavlović Saftić
- Laboratory of Medicinal Chemistry, Institute of Medical Biology PAS, Lodowa 106, 92-232, Łódź, Poland
| | - Konrad Głąbała
- Laboratory of Medicinal Chemistry, Institute of Medical Biology PAS, Lodowa 106, 92-232, Łódź, Poland
| | - Tomasz Przygodzki
- Department of Haemostatic Disorders, Medical University of Lodz, 6/8 Mazowiecka St. 92-215, Lodz, Poland
| | - Lidia Stańczyk
- Department of Haemostatic Disorders, Medical University of Lodz, 6/8 Mazowiecka St. 92-215, Lodz, Poland
| | - Kamil Karolczak
- Department of Haemostatic Disorders, Medical University of Lodz, 6/8 Mazowiecka St. 92-215, Lodz, Poland
| | - Cezary Watała
- Department of Haemostatic Disorders, Medical University of Lodz, 6/8 Mazowiecka St. 92-215, Lodz, Poland
| | - Harsha Rao
- Laboratory of Bioorganic Chemistry and Molecular Recognition Section, National Institute of Diabetes & Digestive & Kidney Diseases, NIH, Bethesda, MD, 20892-0810, USA
| | - Zhan-Guo Gao
- Laboratory of Bioorganic Chemistry and Molecular Recognition Section, National Institute of Diabetes & Digestive & Kidney Diseases, NIH, Bethesda, MD, 20892-0810, USA
| | - Kenneth A Jacobson
- Laboratory of Bioorganic Chemistry and Molecular Recognition Section, National Institute of Diabetes & Digestive & Kidney Diseases, NIH, Bethesda, MD, 20892-0810, USA
| | - Zbigniew J Leśnikowski
- Laboratory of Medicinal Chemistry, Institute of Medical Biology PAS, Lodowa 106, 92-232, Łódź, Poland.
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7
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Chen M, Zhao D, Xu J, Li C, Lu C, Yan H. Electrooxidative B−H Functionalization of
nido
‐Carboranes. Angew Chem Int Ed Engl 2021. [DOI: 10.1002/ange.202015299] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Affiliation(s)
- Meng Chen
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Deshi Zhao
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Jingkai Xu
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Chunxiao Li
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Changsheng Lu
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry Jiangsu Key Laboratory of Advanced Organic Materials School of Chemistry and Chemical Engineering Nanjing University Nanjing 210023 China
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8
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Chen M, Zhao D, Xu J, Li C, Lu C, Yan H. Electrooxidative B-H Functionalization of nido-Carboranes. Angew Chem Int Ed Engl 2021; 60:7838-7844. [PMID: 33372727 DOI: 10.1002/anie.202015299] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Indexed: 11/07/2022]
Abstract
An atom-economical method for the direct B-H functionalization of nido-carboranes (7,8-nido-C2 B9 H12 - ) has been developed under electrochemical reaction conditions. In this reaction system, anodic oxidation serves as a green alternative for traditional chemical oxidants in the oxidation of nido-carboranes. No transition-metal catalyst is required and different heteroatoms bearing a lone pair are reactive in this transformation. Coupling nido-carboranes with thioethers, selenides, tellurides, N-heterocycles, phosphates, phosphines, arsenides and antimonides demonstrates high site-selectivity and efficiency. Importantly, nido-carboranes can be easily incorporated into drug motifs through this reaction protocol.
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Affiliation(s)
- Meng Chen
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Deshi Zhao
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Jingkai Xu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Chunxiao Li
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Changsheng Lu
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
| | - Hong Yan
- State Key Laboratory of Coordination Chemistry, Jiangsu Key Laboratory of Advanced Organic Materials, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing, 210023, China
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9
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Ni H, Lu Z, Xie Z. Transition-Metal-Free Cross-Coupling Reaction of Iodocarboranes with Terminal Alkynes Enabled by UV Light: Synthesis of 1-Alkynyl- o-Carboranes and Carborane-Fused Cyclics. J Am Chem Soc 2020; 142:18661-18667. [PMID: 33048535 DOI: 10.1021/jacs.0c08652] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A transition-metal-free coupling protocol between iodocarboranes and terminal alkynes enabled by light at room temperature has been developed, leading to the synthesis of a variety of 1-alkynyl-o-carboranes. Moreover, following this strategy, the introduction of 1-I-3-aryl-o-carboranes or 1-I-2-aryl-o-carboranes results in the formation of o-carborane-fused cyclics. Interestingly, when 1-I-3-(p-R-C6H4)-o-carboranes are chosen as coupling partners, unexpected R-group migration products are also isolated. On the basis of the results of control experiments and isolation of the key intermediates, a possible reaction mechanism is then proposed, involving the formation of spiro radical species.
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Affiliation(s)
- Hangcheng Ni
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Zhenpin Lu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
| | - Zuowei Xie
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong, China
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10
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Bennour I, Teixidor F, Kelemen Z, Viñas C. m-Carborane as a Novel Core for Periphery-Decorated Macromolecules. Molecules 2020; 25:E2814. [PMID: 32570849 PMCID: PMC7356233 DOI: 10.3390/molecules25122814] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2020] [Revised: 06/15/2020] [Accepted: 06/16/2020] [Indexed: 12/22/2022] Open
Abstract
Closo m-C2B10H12 can perform as a novel core of globular periphery-decorated macromolecules. To do this, a new class of di and tetrabranched m-carborane derivatives has been synthesized by a judicious choice of the synthetic procedure, starting with 9,10-I2-1,7-closo-C2B10H10. The 2a-NPA (sum of the natural charges of the two bonded atoms) value for a bond, which is defined as the sum of the NPA charges of the two bonded atoms, matches the order of electrophilic reaction at the different cluster bonds of the icosahedral o-and m- carboranes that lead to the formation of B-I bonds. As for m-carborane, most of the 2a-NPA values of B-H vertexes are positive, and their functionalization is more challenging. The synthesis and full characterization of dibranched 9,10-R2-1,7-closo-carborane (R = CH2CHCH2, HO(CH2)3, Cl(CH2)3, TsO(CH2)3, C6H5COO(CH2)3, C6H5COO(CH2)3, N3(CH2)3, CH3CHCH, and C6H5C2N3(CH2)3) compounds as well as the tetrabranched 9,10-R2-1,7-R2-closo-C2B10H8 (R = CH2CHCH2, HO(CH2)3) are presented. The X-ray diffraction of 9,10-(HO(CH2)3)2-1,7-closo-C2B10H10 and 9,10-(CH3CHCH)2-1,7-closo-C2B10H10, as well as their Hirshfeld surface analysis and decomposed fingerprint plots, are described. These new reported tetrabranched m-carborane derivatives provide a sort of novel core for the synthesis of 3D radially grown periphery-decorated macromolecules that are different to the 2D radially grown core of the tetrabranched o-carborane framework.
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Affiliation(s)
| | | | | | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus UAB, 08193 Barcelona, Spain; (I.B.); (F.T.); (Z.K.)
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11
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Comparative study of the effects of ortho-, meta- and para-carboranes (C2B10H12) on the physicochemical properties, cytotoxicity and antiviral activity of uridine and 2′-deoxyuridine boron cluster conjugates. Bioorg Chem 2020; 94:103466. [DOI: 10.1016/j.bioorg.2019.103466] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 10/01/2019] [Accepted: 11/21/2019] [Indexed: 02/07/2023]
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12
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Chaari M, Kelemen Z, Choquesillo-Lazarte D, Teixidor F, Viñas C, Núñez R. Anthracene–styrene-substituted m-carborane derivatives: insights into the electronic and structural effects of substituents on photoluminescence. Inorg Chem Front 2020. [DOI: 10.1039/d0qi00127a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
Efficient light emitters based on anthracene derivatives were developed. We prove that m-carborane is a perfect scaffold for coupling to anthracene giving rise to superb emitters in solution, while keeping the emission properties in aggregate state.
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Affiliation(s)
- Mahdi Chaari
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | - Zsolt Kelemen
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | | | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC)
- Campus U.A.B
- Bellaterra
- Spain
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13
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Kellert M, Lönnecke P, Riedl B, Koebberling J, Hey-Hawkins E. Enlargement of a Modular System-Synthesis and Characterization of an s-Triazine-Based Carboxylic Acid Ester Bearing a Galactopyranosyl Moiety and an Enormous Boron Load. Molecules 2019; 24:E3288. [PMID: 31509949 PMCID: PMC6767515 DOI: 10.3390/molecules24183288] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Accepted: 08/30/2019] [Indexed: 11/26/2022] Open
Abstract
The amount of boron accumulated in tumor tissue plays an important role regarding the success of the boron neutron capture therapy (BNCT). In this article, we report a modular system, combining readily available starting materials, like glycine, 1,3,5-triazine and the well-known 9-mercapto-1,7-dicarba-closo-dodecaborane(12), as well as α-d-galactopyranose for increased hydrophilicity, with a novel boron-rich tris-meta-carboranyl thiol.
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Affiliation(s)
- Martin Kellert
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany.
| | - Peter Lönnecke
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany.
| | - Bernd Riedl
- Bayer AG, Aprather Weg 18A, 42113 Wuppertal, Germany.
| | | | - Evamarie Hey-Hawkins
- Institute of Inorganic Chemistry, Faculty of Chemistry and Mineralogy, Leipzig University, Johannisallee 29, 04103 Leipzig, Germany.
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14
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Kelemen Z, Pepiol A, Lupu M, Sillanpää R, Hänninen MM, Teixidor F, Viñas C. Icosahedral carboranes as scaffolds for congested regioselective polyaryl compounds: the distinct distance tuning of C–C and its antipodal B–B. Chem Commun (Camb) 2019; 55:8927-8930. [DOI: 10.1039/c9cc04526k] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Four-fold dense precisely defined patterns of substitution in o-carborane have been demonstrated by experimentation and computed.
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Affiliation(s)
- Zsolt Kelemen
- Institut de Ciència de Materials de Barcelona
- ICMAB-CSIC Campus U.A.B
- 08193 Bellaterra
- Spain
| | - Ariadna Pepiol
- Institut de Ciència de Materials de Barcelona
- ICMAB-CSIC Campus U.A.B
- 08193 Bellaterra
- Spain
| | - Marius Lupu
- Institut de Ciència de Materials de Barcelona
- ICMAB-CSIC Campus U.A.B
- 08193 Bellaterra
- Spain
| | - Reijo Sillanpää
- Department of Chemistry
- University of Jyväskylä
- Jyväskylä
- Finland
| | | | - Francesc Teixidor
- Institut de Ciència de Materials de Barcelona
- ICMAB-CSIC Campus U.A.B
- 08193 Bellaterra
- Spain
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona
- ICMAB-CSIC Campus U.A.B
- 08193 Bellaterra
- Spain
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15
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Liguo Y, Qingyun L, Xin W, Qianqian G, Yuqiang D. Crystal structure of dibromido[(1,2-bis(diisopropylphosphino)-1,2-dicarba- closo-dodecaborane-κ 2
P,P′]nickel(II), C 14H 38B 10NiBr 2P 2. Z KRIST-NEW CRYST ST 2018. [DOI: 10.1515/ncrs-2017-0200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
C14H38B10NiBr2P2, monoclinic, P21/c (no. 14), a = 10.1920(14) Å, b = 19.055(2) Å, c = 13.5243(17) Å, β = 103.394(2)°, V = 2555.1(6) Å3, Z = 4, R
gt(F) = 0.0461, wR
ref(F
2) = 0.0869, T = 298 K.
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Affiliation(s)
- Yang Liguo
- College of Chemistry and Environmental Engineering, Anyang Institute of Technology , Anyang 455000, Henan , P.R. China
| | - Liu Qingyun
- College of Chemistry and Environmental Engineering , Shandong University of Science and Technology , Qingdao 266510, Shandong , P.R. China
| | - Wang Xin
- College of Chemistry and Environmental Engineering, Anyang Institute of Technology , Anyang 455000, Henan , P.R. China
| | - Gao Qianqian
- College of Mathematics and Physics, Anyang Institute of Technology , Anyang 455000, Henan , P.R. China
| | - Dai Yuqiang
- College of Mathematics and Physics, Anyang Institute of Technology , Anyang 455000, Henan , P.R. China
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16
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Lyu H, Quan Y, Xie Z. Transition Metal Catalyzed, Regioselective B
(4)-Halogenation and B
(4,5)-Diiodination of Cage B−H Bonds in o
-Carboranes. Chemistry 2017; 23:14866-14871. [DOI: 10.1002/chem.201703006] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2017] [Indexed: 11/12/2022]
Affiliation(s)
- Hairong Lyu
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong P.R. China
| | - Yangjian Quan
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong P.R. China
| | - Zuowei Xie
- Department of Chemistry and State Key Laboratory of Synthetic Chemistry; The Chinese University of Hong Kong, Shatin, N.T.; Hong Kong P.R. China
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17
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Quan Y, Tang C, Xie Z. Palladium catalyzed regioselective B-C(sp) coupling via direct cage B-H activation: synthesis of B(4)-alkynylated o-carboranes. Chem Sci 2016; 7:5838-5845. [PMID: 30034724 PMCID: PMC6024241 DOI: 10.1039/c6sc00901h] [Citation(s) in RCA: 83] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2016] [Accepted: 05/12/2016] [Indexed: 01/16/2023] Open
Abstract
Pd-catalyzed carboxylic acid guided regioselective alkynylation of cage B(4)-H bonds in o-carboranes has been achieved for the first time using two different catalytic systems. In the presence of 5 mol% Pd(OAc)2 and 3 equiv. of AgOAc, the reaction of 1-COOH-2-R1-C2B10H10 with R3SiC[triple bond, length as m-dash]CBr in ClCH2CH2Cl gives 4-(R3SiC[triple bond, length as m-dash]C)-2-R1-o-C2B10H10 in moderate to high yields. This reaction is compatible with alkynes possessing sterically bulky silyl groups such as iPr3Si or t BuMe2Si. Meanwhile, another catalytic system of Pd(OAc)2/AgOAc/K2HPO4 can catalyze the direct B(4)-alkynylation of 1-COOH-2-R1-C2B10H10 with terminal alkynes R2C[triple bond, length as m-dash]CH in moderate to high yields. The latter has a broader substrate scope from bulky silyl to aromatic to carboranyl substituents. Desilylation of the resultant products affords carboranyl acetylene 4-(HC[triple bond, length as m-dash]C)-2-R1-o-C2B10H10 which can undergo further transformations such as Sonogashira coupling, dimerization and click reactions. It is suggested that the above two catalytic systems may proceed via Pd(ii)-Pd(iv)-Pd(ii) and Pd(ii)-Pd(0)-Pd(ii) catalytic cycles, respectively. In addition, the silver salt is found to promote the decarboxylation reaction and thereby controls the mono-selectivity.
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Affiliation(s)
- Yangjian Quan
- Department of Chemistry , State Key Laboratory of Synthetic Chemistry , The Chinese University of Hong Kong , Shatin N. T. , Hong Kong , China .
| | - Cen Tang
- Department of Chemistry , State Key Laboratory of Synthetic Chemistry , The Chinese University of Hong Kong , Shatin N. T. , Hong Kong , China .
| | - Zuowei Xie
- Department of Chemistry , State Key Laboratory of Synthetic Chemistry , The Chinese University of Hong Kong , Shatin N. T. , Hong Kong , China .
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18
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Cabrera-González J, Viñas C, Haukka M, Bhattacharyya S, Gierschner J, Núñez R. Photoluminescence in Carborane-Stilbene Triads: A Structural, Spectroscopic, and Computational Study. Chemistry 2016; 22:13588-98. [DOI: 10.1002/chem.201601177] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/21/2016] [Indexed: 11/09/2022]
Affiliation(s)
- Justo Cabrera-González
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus U.A.B. 08193, Bellaterra Barcelona Spain
| | - Clara Viñas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus U.A.B. 08193, Bellaterra Barcelona Spain
| | - Matti Haukka
- Department of Chemistry; University of Jyväskylä; FIN-40014 Jyväskylä Finland
| | - Santanu Bhattacharyya
- Madrid Institute for Advanced Studies; IMDEA Nanoscience; Calle Faraday 9, Campus Cantoblanco 28049 Madrid Spain
- Department für Physik; Ludwig-Maximilians-Universität; 80799 Munich Germany
| | - Johannes Gierschner
- Madrid Institute for Advanced Studies; IMDEA Nanoscience; Calle Faraday 9, Campus Cantoblanco 28049 Madrid Spain
| | - Rosario Núñez
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC); Campus U.A.B. 08193, Bellaterra Barcelona Spain
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19
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Wingen LM, Scholz MS. B-Cyanodicarba-closo-dodecaboranes: Facile Synthesis and Spectroscopic Features. Inorg Chem 2016; 55:8274-6. [DOI: 10.1021/acs.inorgchem.6b01667] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Lukas M. Wingen
- Pharmaceutical Institute, University of Bonn, An der Immenburg
4, D-53121 Bonn, Germany
| | - Matthias S. Scholz
- Pharmaceutical Institute, University of Bonn, An der Immenburg
4, D-53121 Bonn, Germany
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20
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21
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Schäfer M, Krummenacher I, Braunschweig H, Finze M. Boron Clusters with a Ferrocenylalkynyl Group Bonded to Boron: Synthesis, Characterization, and Electrochemical Trends. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400524] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Safronov AV, Sevryugina YV, Pichaandi KR, Jalisatgi SS, Hawthorne MF. Synthesis of closo- and nido-biscarboranes with rigid unsaturated linkers as precursors to linear metallacarborane-based molecular rods. Dalton Trans 2014; 43:4969-77. [PMID: 24149980 DOI: 10.1039/c3dt52596a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Several biscarborane-type derivatives of 8-iodo-1,2-dicarba-closo-dodecaborane (1), suitable as the precursors of linear metallacarborane-based molecular rods, were prepared. The synthesized closo-compounds contained two carborane moieties connected through a rigid linear unsaturated linker. The linkers were based on ethynylene and para-phenylene fragments and their combinations. The deboronation of all reported closo-compounds was selective and afforded nido-products with open pentagonal faces on opposite sides of the molecule, parallel to each other and perpendicular to the main molecular axis. All of the closo and nido products were characterized by a variety of physical methods (NMR, HRMS, IR). The structures of closo-carboranes 3, 6, 9, and 14 and nido-carboranes 15 and 17 were established by X-ray diffraction.
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Affiliation(s)
- Alexander V Safronov
- International Institute of Nano and Molecular Medicine (I2NM2), University of Missouri, Columbia, MO 65211, USA.
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23
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Hailmann M, Konieczka SZ, Himmelspach A, Löblein J, Reiss GJ, Finze M. Carba-closo-dodecaborate anions with two functional groups: [1-R-12-HC≡C-closo-1-CB₁₁H₁₀]⁻ (R = CN, NC, CO₂H, C(O)NH₂, NHC(O)H). Inorg Chem 2014; 53:9385-99. [PMID: 25140733 DOI: 10.1021/ic501526g] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Disubstituted carba-closo-dodecaborate anions with one functional group bonded to the cluster carbon atom and one ethynyl group bonded to the antipodal boron atom were synthesized from easily accessible {closo-1-CB11} clusters. [Et4N][1-NC-12-HC≡C-closo-1-CB11H10] ([Et4N]4b) was prepared starting from Cs[12-Et3SiC≡C-closo-1-CB11H11] (Cs1c) via salts of the anions [1-HO(O)C-12-HC≡C-closo-1-CB11H10](-) (2b) and [1-H2N(O)C-12-HC≡C-closo-1-CB11H10](-) (3b). In a similar reaction sequence [Et4N][1-CN-12-HC≡C-closo-1-CB11H10] ([Et4N]7b) was obtained from Cs[1-H2N-12-HC≡C-closo-1-CB11H10] (Cs5b) by formamidation to yield [Et4N][1-H(O)CHN-12-HC≡C-closo-1-CB11H10] ([Et4N]6b) and successive dehydration. In addition, the synthesis of the isonitrile [Et4N][1-CN-closo-1-CB11H11] ([Et4N]7a) is presented. The {closo-1-CB11} derivatives were characterized by multinuclear NMR as well as vibrational spectroscopy, mass spectrometry, and elemental analysis. The crystal structures of [Et4N][1-HO(O)C-12-HC≡C-closo-1-CB11H10] ([Et4N]2b), [Et4N][1-H2N(O)C-12-HC≡C-closo-1-CB11H10] ([Et4N]3b), [Et4N][1-NC-12-HC≡C-closo-1-CB11H10] ([Et4N]4b), [Et4N][1-H(O)CHN-12-HC≡C-closo-1-CB11H10] ([Et4N]6b), [Et4N][1-CN-12-HC≡C-closo-1-CB11H10] ([Et4N]7b), and K[1-H(O)CHN-closo-1-CB11H11] ([Et4N]6a) were determined. The transmission of electronic effects through the carba-closo-dodecaboron cage was studied based on (13)C NMR spectroscopic data, by results derived from density functional theory calculations, and by a comparison to the data of related benzene and bicyclo[2.2.2]octane derivatives.
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Affiliation(s)
- Michael Hailmann
- Institut für Anorganische Chemie, Julius-Maximilians-Universität Würzburg , Am Hubland, 97074 Würzburg, Germany
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24
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Olid D, Núñez R, Viñas C, Teixidor F. Methods to produce B-C, B-P, B-N and B-S bonds in boron clusters. Chem Soc Rev 2013; 42:3318-36. [PMID: 23318646 DOI: 10.1039/c2cs35441a] [Citation(s) in RCA: 250] [Impact Index Per Article: 22.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Boranes, heteroboranes and metallacarboranes, all named as boron clusters, offer an alternative to typical organic molecules or organic molecular materials. Carbon and boron share the important property of self-catenation thus these elements can produce individually large and sophisticated molecules. Boron clusters and organic molecules display electronic, physical, chemical and geometrical characteristics manifestly different. These differences highlight the complementarity of organic molecules and boron clusters, and therefore the feasibility or necessity to produce hybrid molecules incorporating both types of fragments. To join these two types of fragments, or alternatively these two types of molecular compounds, tools are needed. In this review the current methods of producing boron clusters with carbon, B-C, nitrogen, B-N, phosphorus, B-P and sulphur bonds, B-S, are indicated. As there are many existing borane clusters of different sizes, heteroboranes and metallacarboranes, the revision of methods to generate the B-C, B-P, B-S, and B-N bonds has been restricted to the most widely used boron clusters; [B12H12](2-), dianionic and an example of a borane, 1,2-C2B10H12, neutral and an example of a heteroborane, and [Co(C2B9H11)2](-), monoanionic and an example of a metallacarborane.
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Affiliation(s)
- David Olid
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la U.A.B., E-08193 Bellaterra-Barcelona, Spain
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25
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Qiu Z, Quan Y, Xie Z. Palladium-Catalyzed Selective Fluorination of o-Carboranes. J Am Chem Soc 2013; 135:12192-5. [DOI: 10.1021/ja405808t] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Affiliation(s)
- Zaozao Qiu
- Shanghai-Hong Kong
Joint Laboratory
in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai
200032, China
| | - Yangjian Quan
- Department
of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong
Kong, China
| | - Zuowei Xie
- Shanghai-Hong Kong
Joint Laboratory
in Chemical Synthesis, Shanghai Institute of Organic Chemistry, Chinese Academy of Sciences, 345 Lingling Road, Shanghai
200032, China
- Department
of Chemistry and
State Key Laboratory of Synthetic Chemistry, The Chinese University of Hong Kong, Shatin, New Territories, Hong
Kong, China
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26
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Tominaga M, Morisaki Y, Chujo Y. Luminescent Polymer Consisting of 9,12-Linked o
-Carborane. Macromol Rapid Commun 2013; 34:1357-62. [DOI: 10.1002/marc.201300368] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2013] [Revised: 06/20/2013] [Indexed: 11/08/2022]
Affiliation(s)
- Masato Tominaga
- Department of Polymer Chemistry, Graduate School of Engineering; Kyoto University; Katsura Nishikyo-ku, Kyoto 615-8510 Japan
| | - Yasuhiro Morisaki
- Department of Polymer Chemistry, Graduate School of Engineering; Kyoto University; Katsura Nishikyo-ku, Kyoto 615-8510 Japan
| | - Yoshiki Chujo
- Department of Polymer Chemistry, Graduate School of Engineering; Kyoto University; Katsura Nishikyo-ku, Kyoto 615-8510 Japan
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27
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Functionalized ruthenatricarbadecaboranes via selective cage iodination and Sonogashira coupling reactions. J Organomet Chem 2012. [DOI: 10.1016/j.jorganchem.2012.05.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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28
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Safronov AV, Sevryugina YV, Jalisatgi SS, Kennedy RD, Barnes CL, Hawthorne MF. Unfairly Forgotten Member of the Iodocarborane Family: Synthesis and Structural Characterization of 8-Iodo-1,2-dicarba-closo-dodecaborane, Its Precursors, and Derivatives. Inorg Chem 2012; 51:2629-37. [DOI: 10.1021/ic2025846] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Alexander V. Safronov
- International Institute of Nano
and Molecular Medicine (I2NM2), University of Missouri, Columbia, Missouri 65211, United
States
| | - Yulia V. Sevryugina
- International Institute of Nano
and Molecular Medicine (I2NM2), University of Missouri, Columbia, Missouri 65211, United
States
| | - Satish S. Jalisatgi
- International Institute of Nano
and Molecular Medicine (I2NM2), University of Missouri, Columbia, Missouri 65211, United
States
| | - Robert D. Kennedy
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208,
United States
| | - Charles L. Barnes
- Department
of Chemistry, University of Missouri, Columbia,
Missouri 65211, United
States
| | - M. Frederick Hawthorne
- International Institute of Nano
and Molecular Medicine (I2NM2), University of Missouri, Columbia, Missouri 65211, United
States
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29
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Himmelspach A, Finze M, Vöge A, Gabel D. Cesium and Tetrabutylammonium Salt of the Ethynyl-closo-dodecaborate Dianion. Z Anorg Allg Chem 2012. [DOI: 10.1002/zaac.201100458] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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30
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Finze M, Reiss GJ. 9-Ethynyl-1,2-dimethyl-1,2-dicarba-closo-dodeca-borane (1,2-Me(2)-9-HC C-closo-1,2-C(2)B(10)H(9)). Acta Crystallogr Sect E Struct Rep Online 2010; 66:o1709-10. [PMID: 21587928 PMCID: PMC3006814 DOI: 10.1107/s1600536810022440] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2010] [Accepted: 06/11/2010] [Indexed: 11/24/2022]
Abstract
The asymmetric unit of the title compound, C6H16B10, contains one molecule that is close to possessing a non-crystallographic plane of mirror symmetry in the space group Pna21. The orientation of the molecules in the orthorhombic cell shows that the structure can not be described in the space group Pnma, which has the same systematic absence conditions. The long inner-cluster C—C distance of 1.510 (5) Å is typical for {1,2-Me2-closo-1,2-C2B10} derivatives.
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Affiliation(s)
- Maik Finze
- Institut für Anorganische Chemie und Strukturchemie II, Heinrich Heine Universität Düsseldorf, Universitätsstrasse 1, D-40225 Düsseldorf, Germany
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31
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Himmelspach A, Finze M. Dicarba-closo-dodecaboranes with One and Two Ethynyl Groups Bonded to Boron. Eur J Inorg Chem 2010. [DOI: 10.1002/ejic.201000064] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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