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Thematische Bibliographien / Transition Metal Borates / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Transition Metal Borates“

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Veröffentlicht am 18. Mai 2024

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1

Didelot, Emilie, Zbigniew Łodziana, Fabrizio Murgia und Radovan Černý. „Ethanol- and Methanol-Coordinated and Solvent-Free Dodecahydro closo-Dodecaborates of 3d Transition Metals and of Magnesium“. Crystals 9, Nr. 7 (21.07.2019): 372. http://dx.doi.org/10.3390/cryst9070372.

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Magnesium and 3d transition metals closo-borates were prepared by mechanosynthesis (ball milling) of the mixtures Na2B12H12 + MCl2 (M = Mn, Fe, Co, Ni, Mg), followed by addition of ethanol or methanol and drying under dynamic vacuum. The dead mass of NaCl is partly removed by filtration. The crystal structures of solvent-coordinated and solvent-free closo-borates have been characterized by temperature dependent synchrotron radiation X-ray powder diffraction, ab initio calculations, thermal analysis and infrared spectroscopy. Various solvated complexes containing six, four, three, two or one solvent molecules were obtained by successive removal of the solvent until in most case the solvent-free metal closo-borates were obtained with the exception of Mg whose hypothetical crystal structure, however, could have its prototype in MnB12H12. The 3d transition metal closo-borates were studied in the view of their potential use as Na- or Li-ion battery electrodes in combination with Na or Li closo-borate solid electrolytes. The metal oxidation state (II) obtained in compounds presented here does not allow such application.

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2

Liu, Jia-Yuan, Hai-Di Ma, Yan-bo Sun, Ying Li, Wei-Ming Sun, Di Wu und Zhi-Ru Li. „Hyperhalogen properties of early-transition-metal borates“. RSC Adv. 7, Nr. 74 (2017): 47073–82. http://dx.doi.org/10.1039/c7ra10238k.

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3

Akef Ibrahim Alhmaideen, Akef Ibrahim Alhmaideen, Hamzeh M. Abdel Halim Hamzeh M Abdel Halim und Assala A. Al Twal and Adnan S. Abu Surrah Assala A Al Twal and Adnan S Abu Surrah. „Synthesis of New Series of Transition Metal Complexes with Poly (Pyrazolyl) Borates“. Journal of the chemical society of pakistan 45, Nr. 4 (2023): 294. http://dx.doi.org/10.52568/001289/jcsp/45.04.2023.

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In structuring catalysis enzyme and chemistry, tridentate ligands and Scorpionate ligands are of significant worth. This study presents the synthesis of a tris(pyrazolyl)borate ligand to be utilized in transition metal complexes as possible redox shuttles. Complexes of general formula [AgTp], [MIIITp (Cl2)] (M = Fe, Co), Tp = tri (1-pyrazolyl) borohydride and [AgTp*], [FeIIITp*(Cl2)], Tp* = tris (3, 5-dimethyl-1-pyrazolyl) borohydride were synthesized and characterized in solid state. The Tp ligands were considered triply coordinated with the metal center with two bounded chloride atoms as per the information gathered from spectroscopic information. Entire preparations and operations were performed under argon using common Schlenk procedures. Elemental analysis was performed using (the EURO EA instrument). Thermolysis shows that the Tp ligand decomposes around 100oC and above 300oC for some complexes. The composites were simple to compose, yielded high yields, and were reasonably air sensitive. This study has examined the synthesis of a tris(pyrazolyl)borohydride ligand to develop an iron complex. Further studies conducting electrochemical tests should be carried out to demonstrate the effectiveness of this likely redox mediator.

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4

Pasqualini, Leonard C., Martina Tribus und Hubert Huppertz. „Expansion and adaptation of the M ₅B₁₂O₂₅(OH) structure type to incorporate di- and trivalent transition metal cations“. Zeitschrift für Naturforschung B 79, Nr. 1 (01.01.2024): 39–49. http://dx.doi.org/10.1515/znb-2023-0082.

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Abstract Five transition metal borates were synthesized in a Walker-type module under high-pressure/high-temperature conditions of 8–9 GPa and 800–1200 °C. They all exhibit the same interpenetrating, anionic borate network B12O26 16−, crystallizing in the space group I41/acd, and therefore show high similarities to the borates Ti5B12O26 and Ga5B12O25(OH). Cr5B12O25(OH) and V5B12O25(OH) are isotypic to Ga5B12O25(OH), whereas Mn5Mn0.83B12O26 and Fe5Fe0.14B12O24.3(OH)1.7 feature the partial occupation of an additional, cuboctahedral cavity in the structure. This is due to a partial reduction of the cations to the oxidation state +2, as presented with the novel compound Mn5MnB12O22(OH)4, which only features Mn2+ for charge compensation. These structures feature a twelvefold coordination of manganese and iron.

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5

Banerjee, Abhinandan, und Robert W. J. Scott. „Optimization of transition metal nanoparticle-phosphonium ionic liquid composite catalytic systems for deep hydrogenation and hydrodeoxygenation reactions“. Green Chemistry 17, Nr. 3 (2015): 1597–604. http://dx.doi.org/10.1039/c4gc01716a.

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6

Balaev, A. D., N. B. Ivanova, N. V. Kazak, S. G. Ovchinnikov, V. V. Rudenko und V. M. Sosnin. „Magnetic anisotropy of the VBO3 and CrBO3 transition-metal borates“. Physics of the Solid State 45, Nr. 2 (Februar 2003): 287–91. http://dx.doi.org/10.1134/1.1553533.

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7

Beckett, Michael A. „Recent advances in crystalline hydrated borates with non-metal or transition-metal complex cations“. Coordination Chemistry Reviews 323 (September 2016): 2–14. http://dx.doi.org/10.1016/j.ccr.2015.12.012.

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8

Fehlhammer, Wolf Peter, Hans Hoffmeister, Borislav Boyadjiev und Thomas Kolrep. „Bor-stabilisierte Ν,Ο-Carbene, II Röntgenstrukturanalyse von (trans-4,5-Dimethyloxazolidin-2-yliden)triphenylbor und N-Alkyliengen / Boron Stabilized Ν,Ο-Carbenes, II X-Ray Structure of (trans-4,5-Dimethyloxazolidin-2-ylidene)triphenylboron and N-Alkylations“. Zeitschrift für Naturforschung B 44, Nr. 8 (01.08.1989): 917–22. http://dx.doi.org/10.1515/znb-1989-0810.

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The X-ray structure analysis of (trans-4,5-dimethyloxazolidin-2-ylidene)triphenylboron reveals a stereochemistry of the carbene ligand which is almost identical with that in transition metal complexes. Deprotonation of triphenylboron stabilized oxazolidin-2-ylidenes with NaH leads to (oxazolin-2-ato)borates, which have been N-alkylated with [R3O+][BF4~] or RI under mild conditions.

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9

Jiang, Xiaolin, Zijun Huang, Mohamed Makha, Chen-Xia Du, Dongmei Zhao, Fang Wang und Yuehui Li. „Tetracoordinate borates as catalysts for reductive formylation of amines with carbon dioxide“. Green Chemistry 22, Nr. 16 (2020): 5317–24. http://dx.doi.org/10.1039/d0gc01741h.

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The first example of borate-catalyzed N-formylation of amines using CO₂ as the carbon source in the presence of hydrosilanes is demonstrated using sodium (trihydroxy)phenylborate as a transition metal-free catalyst.

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10

Tao, Liang, James R. Neilson, Brent C. Melot, Tyrel M. McQueen, Christian Masquelier und Gwenaëlle Rousse. „Magnetic Structures of LiMBO3 (M = Mn, Fe, Co) Lithiated Transition Metal Borates“. Inorganic Chemistry 52, Nr. 20 (02.10.2013): 11966–74. http://dx.doi.org/10.1021/ic401671m.

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11

Zhou, Kaiqiang, Guigui Xu, Yang Chen, Zhiqing Chen, Jinxian Huang, Yichao Zhen, Zhigao Huang und Zhensheng Hong. „Carbon coated transition metal borates as anode materials for Na-ion batteries“. Chemical Engineering Journal 375 (November 2019): 121998. http://dx.doi.org/10.1016/j.cej.2019.121998.

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12

Wang, Ji-tao, Hai-yang He und Yu-ming Xu. „Reactions of transition metal-stannyl trichloride with potassium poly(1-pyrazolyl)borates“. Heteroatom Chemistry 9, Nr. 5 (1998): 479–83. http://dx.doi.org/10.1002/(sici)1098-1071(1998)9:5<479::aid-hc4>3.0.co;2-1.

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13

Miao, Jing, Kun-Xian Wu und Zhi-Hong Liu. „Thermodynamic properties for two mixed alkali-transition metal borates of Li6Zn3B4O12 and Na3ZnB5O10“. Journal of Chemical Thermodynamics 125 (Oktober 2018): 235–39. http://dx.doi.org/10.1016/j.jct.2018.06.003.

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14

Cui, Liang, Wenxiu Zhang, Rongkun Zheng und Jingquan Liu. „Electrocatalysts Based on Transition Metal Borides and Borates for the Oxygen Evolution Reaction“. Chemistry – A European Journal 26, Nr. 51 (10.07.2020): 11661–72. http://dx.doi.org/10.1002/chem.202000880.

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15

Wang, Guo-Ming, Yan-Qiong Sun und Guo-Yu Yang. „Syntheses and crystal structures of three new borates templated by transition-metal complexes in situ“. Journal of Solid State Chemistry 179, Nr. 5 (Mai 2006): 1545–53. http://dx.doi.org/10.1016/j.jssc.2006.02.002.

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16

Knyrim, Johanna S., Jana Friedrichs, Stephanie Neumair, Felix Roeßner, Yvonne Floredo, Stefanie Jakob, Dirk Johrendt, Robert Glaum und Hubert Huppertz. „High-pressure syntheses and characterization of the transition metal borates β-MB4O7 (M=Mn2+, Ni2+, Cu2+)“. Solid State Sciences 10, Nr. 2 (Februar 2008): 168–76. http://dx.doi.org/10.1016/j.solidstatesciences.2007.09.004.

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17

Li, Sa-Ying, und Pan Liang. „Thermodynamic properties for two mixed alkaline earth-transition metal borates of BaZn2B2O6 and Ba2Cd(B3O6)2“. Journal of Chemical Thermodynamics 155 (April 2021): 106373. http://dx.doi.org/10.1016/j.jct.2020.106373.

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18

Tole, Tegene T., Johannes H. L. Jordaan und Hermanus C. M. Vosloo. „α-Pyridinyl Alcohols, α,α’-Pyridine Diols, α-Bipyridinyl Alcohols, and α,α’-Bipyridine Diols as Structure Motifs Towards Important Organic Molecules and Transition Metal Complexes“. Current Organic Synthesis 17, Nr. 5 (27.07.2020): 344–66. http://dx.doi.org/10.2174/1570179417666200212111049.

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Background: The preparation and use of pyridinyl alcohols as ligands showed incredible increment in the past three decades. Important property of pyridinyl alcoholato ligands is their strong basicity, which is mainly due to the lack of resonance stabilization of the corresponding anion. This strongly basic anionic nature gives them high ability to make bridges between metal centers rather than to bind to only one metal center in a terminal fashion. They are needed as ligands due to their ability to interact with transition metals both covalently (with oxygen) and hemilabile coordination (through nitrogen). Objective: The review focuses on the wide application of α-pyridinyl alcohols, α,α’-pyridine diols, α- bipyridinyl alcohols, and α,α’-bipyridine diols as structure motifs in the preparation of important organic molecules which is due to their strongly basic anionic nature. Conclusion: It is clear from the review that in addition to their synthetic utility in the homogeneous and asymmetric catalytic reactions, the preparation of the crown ethers, cyclic and acyclic ethers, coordinated borates (boronic esters), pyridinyl-phosphine ligands, pyridinyl-phosphite ligands, and pyridinyl-phosphinite ligands is the other broad area of application of pyridinyl alcohols. In addition to the aforementioned applications they are used for modeling mode of action of enzymes and some therapeutic agents. Their strongly basic anionic nature gives them high ability to make bridges between metal centers rather than to bind to only one metal center in a terminal fashion in the synthesis of transition metal cluster complexes. Not least numbers of single molecule magnets that can be used as storage of high density information were the result of transition metal complexes of pyridinyl alcoholato ligands.

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19

Lan, Shao-Min, Wen-Jing Di, Zhi-Dong Shao und Yun-Xiao Liang. „Two new transition metal inorganic–organic hybrid borates: [tris(2-aminoethoxy)trihydroxyhexaborato]cobalt(II) and its nickel(II) analogue“. Acta Crystallographica Section C Crystal Structure Communications 67, Nr. 11 (15.10.2011): m338—m341. http://dx.doi.org/10.1107/s0108270111041072.

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20

Galimzyanov, Bulat N., Maria A. Doronina und Anatolii V. Mokshin. „Arrhenius Crossover Temperature of Glass-Forming Liquids Predicted by an Artificial Neural Network“. Materials 16, Nr. 3 (28.01.2023): 1127. http://dx.doi.org/10.3390/ma16031127.

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The Arrhenius crossover temperature, TA, corresponds to a thermodynamic state wherein the atomistic dynamics of a liquid becomes heterogeneous and cooperative; and the activation barrier of diffusion dynamics becomes temperature-dependent at temperatures below TA. The theoretical estimation of this temperature is difficult for some types of materials, especially silicates and borates. In these materials, self-diffusion as a function of the temperature T is reproduced by the Arrhenius law, where the activation barrier practically independent on the temperature T. The purpose of the present work was to establish the relationship between the Arrhenius crossover temperature TA and the physical properties of liquids directly related to their glass-forming ability. Using a machine learning model, the crossover temperature TA was calculated for silicates, borates, organic compounds and metal melts of various compositions. The empirical values of the glass transition temperature Tg, the melting temperature Tm, the ratio of these temperatures Tg/Tm and the fragility index m were applied as input parameters. It has been established that the temperatures Tg and Tm are significant parameters, whereas their ratio Tg/Tm and the fragility index m do not correlate much with the temperature TA. An important result of the present work is the analytical equation relating the temperatures Tg, Tm and TA, and that, from the algebraic point of view, is the equation for a second-order curved surface. It was shown that this equation allows one to correctly estimate the temperature TA for a large class of materials, regardless of their compositions and glass-forming abilities.

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21

Zaidi, Saiyid Aftab A., Maimoona Jaria und Zafar A. Siddiqi. „Syntheses and Physico-Chemical Studies of Potassium Hydrotris and Tetrakis (Phthalimidyl) borates and Their Complexes with First Row Transition Metal Ions“. Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 16, Nr. 8 (Januar 1986): 1067–87. http://dx.doi.org/10.1080/00945718608071382.

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22

Zaidi, S. A. A., M. A. Zahoor, K. S. Siddiqi, S. A. Shaheer, S. R. A. Zaidi und T. A. Khan. „Synthesis and Characterization of Potassium Dihydrobis-, Potassium Hydrotris- and Potassium Tetrakis (Indolyl) Borates and Their Complexes with Some Transition Metal Ions“. Synthesis and Reactivity in Inorganic and Metal-Organic Chemistry 19, Nr. 5 (Mai 1989): 425–40. http://dx.doi.org/10.1080/00945718908048082.

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23

Zhi, Shao-Chen, Yue-Lin Wang, Li Sun, Jian-Wen Cheng und Guo-Yu Yang. „Linking 1D Transition-Metal Coordination Polymers and Different Inorganic Boron Oxides To Construct a Series of 3D Inorganic–Organic Hybrid Borates“. Inorganic Chemistry 57, Nr. 3 (25.01.2018): 1350–55. http://dx.doi.org/10.1021/acs.inorgchem.7b02765.

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24

Fabrizi de Biani, Fabrizia, Frieder Jäkle, Michael Spiegler, Matthias Wagner und Piero Zanello. „Ferrocene-Based Tris(1-pyrazolyl)borates: A New Approach to Heterooligometallic Complexes and Organometallic Polymers Containing Transition Metal Atoms in the Backbone“. Inorganic Chemistry 36, Nr. 10 (Mai 1997): 2103–11. http://dx.doi.org/10.1021/ic9612360.

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25

AKITA, Munetaka, Shiro HIKICHI und Yoshihiko MORO-OKA. „Chemistry of Transition Metal Complexes Supported by Hydrotris(pyrazolyl)-borates. Their Characteristic Properties and the Chemistry of Dioxygen Complexes Based on the Ligands.“ Journal of Synthetic Organic Chemistry, Japan 57, Nr. 7 (1999): 619–28. http://dx.doi.org/10.5059/yukigoseikyokaishi.57.619.

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26

Francesco, Irene Notar, Antoine Renier, Alain Wagner und Françoise Colobert. „Chemoselective addition of in situ prepared lithium alkynyl borates to aldehydes: a practical and transition metal free approach toward the synthesis of propargylic alcohols“. Tetrahedron Letters 51, Nr. 10 (März 2010): 1386–89. http://dx.doi.org/10.1016/j.tetlet.2010.01.011.

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27

Liang, Pan, Jie Wang und Zhi-Hong Liu. „Thermochemical properties for a series of transition metal borates of M[B 12 O 14 (OH) 10 ] (M II = Mn, Zn, Fe, Co, Ni)“. Journal of Chemical Thermodynamics 97 (Juni 2016): 179–82. http://dx.doi.org/10.1016/j.jct.2016.01.024.

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28

Akita, Munetaka, Shiro Hikichi und Yoshihiko Moro-oka. „ChemInform Abstract: Chemistry of Transition Metal Complexes Supported by Hydrotris(pyrazolyl)borates: Their Characteristic Properties and the Chemistry of Dioxygen Complexes Based on the Ligands“. ChemInform 30, Nr. 50 (12.06.2010): no. http://dx.doi.org/10.1002/chin.199950241.

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29

Francesco, Irene Notar, Antoine Renier, Alain Wagner und Francoise Colobert. „ChemInform Abstract: Chemoselective Addition of in situ Prepared Lithium Alkynyl Borates to Aldehydes: A Practical and Transition Metal-Free Approach Toward the Synthesis of Propargylic Alcohols.“ ChemInform 41, Nr. 26 (08.06.2010): no. http://dx.doi.org/10.1002/chin.201026076.

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Grootveld, Martin, Edward Lynch, Georgina Page, Wyman Chan, Benita Percival, Eugenia Anagnostaki, Valina Mylona, Sonia Bordin-Aykroyd und Kerry L. Grootveld. „Potential Advantages of Peroxoborates and Their Ester Adducts Over Hydrogen Peroxide as Therapeutic Agents in Oral Healthcare Products: Chemical/Biochemical Reactivity Considerations In Vitro, Ex Vivo And In Vivo“. Dentistry Journal 8, Nr. 3 (07.08.2020): 89. http://dx.doi.org/10.3390/dj8030089.

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Peroxides present in oral healthcare products generally exert favourable protective activities against the development and progression of tooth decay, plaque, gingivitis, and halitosis, etc. However, despite the high level of research focus on hydrogen and carbamide peroxides as therapeutically active (and tooth-whitening) agents, to date the use of alternative chemical forms of peroxides such as peroxoborates for these purposes has received only scant attention. Intriguingly, peroxoborate and its esters with polyols, such as glycerol, have a very diverse chemistry/biochemistry in aqueous solution, for which there is an increasing amount of evidence that it remains distinctive from that of hydrogen peroxide; such properties include self-associative and hydrolytic equilibria, and their abilities to participate in electrophile- or nucleophile-scavenging, metal ion-complexing, redox and free radical reactions, for example. Therefore, the purpose of this detailed commentary is to evaluate both differences and similarities between the molecular/biomolecular reactivities of peroxoborate species and hydrogen peroxide in vitro, ex-vivo and in vivo. It encompasses brief sectional accounts regarding the molecular heterogeneity of peroxoborates, the release of bioactive agents therefrom, and their oxidative attack on oral cavity biomolecules (the nucleophilic or electrophilic character of these oxidations are discussed). Further areas explored are the abilities of borates and peroxoborates to enhance the solubility of iron ions in aqueous solution, their involvements in free radical biochemistry (particularly the complexation of oxygen radical-promoting transition metal ions by, and antioxidant properties of, peroxoborate-polyol ester adducts), and the specific inhibition of protease enzymes. Further aspects focus on the tooth-whitening, oral malodor neutralizing, and potential mutagenic and genotoxic properties of peroxoborates, along with possible mechanisms for these processes. The abilities of peroxoborates, and peroxides in general, to modulate the activities of inflammatory mediators and vitamins, antioxidant or otherwise, are also explored.

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Onishi, Masayoshi, und Katsuma Hiraki. „Pyrazolyl carbon and proton NMR assignments for transition-metal poly(1-pyrazolyl)borates. Syntheses and NMR spectral studies of the (η2-BR2Pz2) (Pz=1-pyrazolyl) palladium and platinum complexes“. Inorganica Chimica Acta 224, Nr. 1-2 (Oktober 1994): 131–35. http://dx.doi.org/10.1016/0020-1693(94)04121-0.

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KARTHIKEYAN, B. „FTIR SPECTRAL ANALYSIS ON HEAVY METAL BORATE GLASSES“. Modern Physics Letters B 20, Nr. 10 (30.04.2006): 533–38. http://dx.doi.org/10.1142/s0217984906010688.

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Inorganic heavy metal borate glasses were prepared through the melt quenching technique. Two sets of glasses were prepared, the compositions are (wt.%) 35 Bi 2 O 3+(50-x) B 2 O 3+15 Na 2 O +x PbO , where x=0, 10, 20, 30 and 35 MO +30 Na 2 O +35 B 2 O 3 ( MO = Bi 2 O 3, PbO , ZnO ). The FTIR structural analysis was made. These glasses have different borate groups and it mainly depends on the modifier/metal ion concentration. The influence of heavy metal and transition metal ion on the borate network were also identified.

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Iqbal, S. A., J. Pahl, K. Yuan und M. J. Ingleson. „Intramolecular (directed) electrophilic C–H borylation“. Chemical Society Reviews 49, Nr. 13 (2020): 4564–91. http://dx.doi.org/10.1039/c9cs00763f.

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Rousée, Kevin, Xavier Pannecoucke, Annie-Claude Gaumont, Jean-François Lohier, Fabrice Morlet-Savary, Jacques Lalevée, Jean-Philippe Bouillon, Samuel Couve-Bonnaire und Sami Lakhdar. „Transition metal-free stereospecific access to (E)-(1-fluoro-2-arylvinyl)phosphine borane complexes“. Chemical Communications 53, Nr. 12 (2017): 2048–51. http://dx.doi.org/10.1039/c6cc09673e.

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Saha, Koushik, und Sundargopal Ghosh. „Hydroboration reactions using transition metal borane and borate complexes: an overview“. Dalton Transactions 51, Nr. 7 (2022): 2631–40. http://dx.doi.org/10.1039/d1dt04289k.

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Ibrahim, Mohamed M., G. A. M. Mersal, Ahmed M. Fallatah, Khaled Althubeiti, Hamdy S. El-Sheshtawy, Manal F. Abou Taleb, Manash R. Das, Rabah Boukherroub, Mohamed S. Attia und Mohammed A. Amin. „Electrocatalytic hydrogen generation using tripod containing pyrazolylborate-based copper(ii), nickel(ii), and iron(iii) complexes loaded on a glassy carbon electrode“. RSC Advances 12, Nr. 13 (2022): 8030–42. http://dx.doi.org/10.1039/d1ra08530a.

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Three transition metal complexes (MC) namely, [TpMeMeCuCl(H2O)] (CuC), [TpMeMeNiCl] (NiC), and [TpMeMeFeCl2(H2O)] (FeC) {TpMeMe = tris(3,5-dimethylpyrazolyl)borate} were synthesized and structurally characterized.

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Böck, Barbara, Heinrich Nöth und Ulrich Wietelmann. „Reactions of Amino-imino-boranes with Transition Metal Halides and Substituted Transition Metal Halides“. Zeitschrift für Naturforschung B 56, Nr. 7 (01.07.2001): 659–70. http://dx.doi.org/10.1515/znb-2001-0714.

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The aminoiminoborane tmp-B=NCMe3 (1) adds to TiBr4 or ZrCl4 in a 1:1 ratio while PdCl2 adds 1 in a 1:2 ratio. In these new compounds the NBN unit is almost linear and the configuration corresponds to an allene. On the other hand 1 and Ti(OR)4 compounds and Ti(NMe2)4 give N metallated diaminoboranes tmp-B(X)-NCMe3EX3 (X = OR, NMe2). Mixed compounds Ti(OR)3-nXn lead to diaminoboranes with BOR groups while the TiCl bond inserts into the B = N bond of 1 to produce tmp-BNMe2-NCMe3TiCl3. Hydrolysis of this compound leads to a spirocyclic dititanoxane with a short linear Ti-O-Ti bond and pentacoordinated Ti centers carrying two Cl atoms each. Spirocycles with a BN2E (E = Ti, Nb, Ta, Pd) unit are formed when 1 is allowed to react with TiCl4, NbCl5, TaCl5 and PdCl2. The palladium compound 16 is dimeric, and dimerization occurs via Pd-Cl bridges. The aminoiminoborane tmp-B=NC6H3-2,6-iPr2 reacts with the titanium compounds in the same manner as 1, however without formation of spirocycles.

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Zaidi, Saiyid Aftab A., Tabrez A. Khan, S. R. A. Zaidi und Zafar A. Siddiqi. „Transition metal complexes of hydrotris(imidazolyl)borate anion“. Polyhedron 4, Nr. 7 (Januar 1985): 1163–66. http://dx.doi.org/10.1016/s0277-5387(00)84101-7.

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39

Zheng, Huitao, Honggang Xiong, Chaobo Su, Hua Cao, Huagang Yao und Xiang Liu. „Photoinduced successive oxidative ring-opening and borylation of indolizines with NHC–boranes“. RSC Advances 12, Nr. 1 (2022): 470–74. http://dx.doi.org/10.1039/d1ra08072e.

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A facile photoinduced successive oxidative ring-opening and borylation of indolizines with NHC–boranes via a one-pot method has been unveiled. This photo-promoted strategy enables the formation of unsaturated NHC–boryl carboxylates under transition metal-free conditions.

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Dong, Yan, Colin W. Oloman, Elod L. Gyenge, Jianwei Su und Liang Chen. „Transition metal based heterogeneous electrocatalysts for the oxygen evolution reaction at near-neutral pH“. Nanoscale 12, Nr. 18 (2020): 9924–34. http://dx.doi.org/10.1039/d0nr02187c.

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Transition metal (e.g. Co, Mn, Ni, Cu, Fe and binary TM) based catalysts achieve high OER performance in near neutral electrolyte, such as phosphate (Pi) buffer solution, borate (Bi) buffer solution, and carbonate (Ci) buffer solution.

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41

Han, Delong, Felix Anke, Michael Trose und Torsten Beweries. „Recent advances in transition metal catalysed dehydropolymerisation of amine boranes and phosphine boranes“. Coordination Chemistry Reviews 380 (Februar 2019): 260–86. http://dx.doi.org/10.1016/j.ccr.2018.09.016.

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42

Sneddon, L. G. „Transition metal promoted reactions of polyhedral boranes and carboranes“. Pure and Applied Chemistry 59, Nr. 7 (01.01.1987): 837–46. http://dx.doi.org/10.1351/pac198759070837.

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43

Andrade, Marta A., und Luísa M. D. R. S. Martins. „Novel Chemotherapeutic Agents - The Contribution of Scorpionates“. Current Medicinal Chemistry 26, Nr. 41 (08.01.2020): 7452–75. http://dx.doi.org/10.2174/0929867325666180914104237.

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: The development of safe and effective chemotherapeutic agents is one of the uppermost priorities and challenges of medicinal chemistry and new transition metal complexes are being continuously designed and tested as anticancer agents. Scorpionate ligands have played a great role in coordination chemistry, since their discovery by Trofimenko in the late 1960s, with significant contributions in the fields of catalysis and bioinorganic chemistry. Scorpionate metal complexes have also shown interesting anticancer properties, and herein, the most recent (last decade) and relevant scorpionate complexes reported for application in medicinal chemistry as chemotherapeutic agents are reviewed. The current progress on the anticancer properties of transition metal complexes bearing homo- or hetero- scorpionate ligands, derived from bis- or tris-(pyrazol-1-yl)-borate or -methane moieties is highlighted.

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Sanglay, Giancarlo Dominador D., Jayson S. Garcia, Mecaelah S. Palaganas, Maurice Sorolla, Sean See, Lawrence A. Limjuco und Joey D. Ocon. „Borate-Based Compounds as Mixed Polyanion Cathode Materials for Advanced Batteries“. Molecules 27, Nr. 22 (19.11.2022): 8047. http://dx.doi.org/10.3390/molecules27228047.

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Rational design of new and cost-effective advanced batteries for the intended scale of application is concurrent with cathode materials development. Foundational knowledge of cathode materials’ processing–structure–properties–performance relationship is integral. In this review, we provide an overview of borate-based compounds as possible mixed polyanion cathode materials in organic electrolyte metal-ion batteries. A recapitulation of lithium-ion battery (LIB) cathode materials development provides that rationale. The combined method of data mining and high-throughput ab initio computing was briefly discussed to derive how carbonate-based compounds in sidorenkite structure were suggested. Borate-based compounds, albeit just close to stability (viz., <30 meV at−1), offer tunability and versatility and hence, potential effectivity as polyanion cathodes due to (1) diverse structures which can host alkali metal intercalation; (2) the low weight of borate relative to mature polyanion families which can translate to higher theoretical capacity; and a (3) rich chemistry which can alter the inductive effect on earth-abundant transition metals (e.g., Ni and Fe), potentially improving the open-circuit voltage (OCV) of the cell. This review paper provides a reference on the structures, properties, and synthesis routes of known borate-based compounds [viz., borophosphate (BPO), borosilicate (BSiO), and borosulfate (BSO)], as these borate-based compounds are untapped despite their potential for mixed polyanion cathode materials for advanced batteries.

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Colebatch, Annie L., und Anthony F. Hill. „Coordination chemistry of phosphinocarbynes: phosphorus vs. carbyne site selectivity“. Dalton Transactions 46, Nr. 13 (2017): 4355–65. http://dx.doi.org/10.1039/c6dt04770j.

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The phosphinocarbyne complex [W(CPPh₂)(CO)₂(Tp*)] (1: Tp* = hydrotris(dimethylpyrazolyl)borate) coordinates transition metal fragments via the phosphine to form bimetallic species [W{CPPh₂RhCl₂(Cp*)}(CO)₂(Tp*)] (2) and [W(CPPh₂AuCl)(CO)₂(Tp*)] (3).

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Singh, Devinder, Randev Singh und Balkaran Singh. „Preparation and characterization of transition metal oxide doped borate glasses“. International Journal of Recent Scientific Research 08, Nr. 05 (28.05.2017): 17192–95. http://dx.doi.org/10.24327/ijrsr.2017.0805.0301.

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47

Möncke, D., E. I. Kamitsos, D. Palles, R. Limbach, A. Winterstein-Beckmann, T. Honma, Z. Yao, T. Rouxel und L. Wondraczek. „Transition and post-transition metal ions in borate glasses: Borate ligand speciation, cluster formation, and their effect on glass transition and mechanical properties“. Journal of Chemical Physics 145, Nr. 12 (28.09.2016): 124501. http://dx.doi.org/10.1063/1.4962323.

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48

lomon, J., J. Padchasri, S. Siriroj, A. Montreeuppathum, N. Chanlek, P. Songsiriritthigul und P. Kidkhunthod. „Effect of Ni-Co transition metal ratios on structure-function of Lithium Aluminium Borate Glasses for battery electrode“. Journal of Physics: Conference Series 2431, Nr. 1 (01.01.2023): 012066. http://dx.doi.org/10.1088/1742-6596/2431/1/012066.

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Abstract The Lithium Aluminum Borate Glasses (Li2O-Al2O3-B2O3) doped with various concentrations of xNi: Co (where x = 1, 2, 3, and 4) effectively synthesized by melt-quench process. Glasses made of nickel-lithium borate have undergone rigorous study to determine the impact of nickel-cobalt content on the operation of electrochemical characteristics and battery performance. The phase structure of all samples was confirmed using TEM diffraction XRD patterns. Intriguingly, at a scan rate of 5 mV/s, the 1Ni: Co glass electrode displayed the highest specific capacitance of 76.6 F/g. By adjusting the Ni:Co ratio in the glass structure, produced (Li2O-Al2O3-B2O3) glasses exhibit improved electrochemical characteristics.

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AboBakr, Hamsa, Abd Elrahman Eldaly, Mohamed Abdo und Mohamed saad. „Physical properties and optical basicity of transition metal-doped borate glasses“. Bulletin of Faculty of Science, Zagazig University 2022, Nr. 2 (30.06.2022): 121–28. http://dx.doi.org/10.21608/bfszu.2022.136030.1131.

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Anavekar, R. V., N. Devaraj und J. Ramakrishna. „Abstract: Electrical Conductivity in Zinc-Borate Glasses Containing Transition Metal Oxides“. Key Engineering Materials 13-15 (Januar 1987): 545–46. http://dx.doi.org/10.4028/www.scientific.net/kem.13-15.545.

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