scholarly journals Soft interactions with hard Lewis acids: generation of mono- and dicationic alkaline-earth metal arene-complexes by direct oxidation

2020 ◽  
Vol 11 (8) ◽  
pp. 2068-2076 ◽  
Author(s):  
Marcel Schorpp ◽  
Ingo Krossing
Keyword(s):  
Lewis Acids ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Arene Complexes ◽  
Direct Oxidation ◽  
Alkaline Earths ◽  
Soft Interactions

The alkaline earths like it hard and soft! By employing a radical cationic ligand-forming oxidising agent we gained access to unprecedented mono and dicationic arene complexes of calcium, strontium and barium.

scholarly journals Kinetic study of wood pyrolysis in presence of metal halides

2014 ◽  
Vol 12 (12) ◽  
pp. 1294-1303 ◽  
Author(s):  
Vladimir Beliy ◽  
Elena Udoratina
Keyword(s):  
Activation Energy ◽  
Lewis Acids ◽  
Alkaline Earth ◽  
Reaction Order ◽  
Earth Metal ◽  
Inorganic Salts ◽  
Alkaline Earth Metal ◽  
Metal Halides ◽  
Wood Pyrolysis ◽  
Kinetics Of

AbstractThe purpose of this work was to study the kinetics of wood pyrolysis in the presence of inorganic salts, representatives of classes of alkali and alkaline earth metal halides (NaCl, KCl, KBr, CaCl2, BaCl2·2H2O) and Lewis acids (AlCl3·6H2O, FeCl3·6H2O, CuCl2, CuBr2, ZnCl2·1.5H2O, NiCl2·6H2O, SnCl2·2H2O) using TG-DSC. The activity of these catalysts was estimated by the temperature of the beginning of pyrolysis, charcoal yield and kinetic parameters, such as energy of activation and reaction order. Using the Lewis acids as catalysts for pyrolysis leads to a decrease in the temperature of the process beginning and the activation energy. In the presence of other catalysts activation energy does not significantly change. The increase of a seeming reaction order in the presence of Lewis acids possibly is a consequence of complication of the thermodestruction mechanism, with the appearance of new parallel competing stages.

Alkaline-Earth Metal-Based Chiral Lewis Acids

2017 ◽  
pp. 1-25 ◽  
Author(s):  
Anna Domżalska ◽  
Artur Ulikowski ◽  
Bartłomiej Furman
Keyword(s):  
Lewis Acids ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal

Impact of Alkaline Earth Metal Doping on the Stability of Perovskite Solar Cells

2019 ◽  
Author(s):  
Nga Phung ◽  
Hans Köbler ◽  
Diego Di Girolamo ◽  
Thi Tuyen Ngo ◽  
Gabrielle Sousa e Silva ◽  
...  
Keyword(s):  
Solar Cells ◽  
Alkaline Earth ◽  
Perovskite Solar Cells ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Metal Doping ◽  
The Stability

Stable alkaline earth metal-ammonia-anion radical complexes and their thermodynamic stabilities

1985 ◽  
Vol 89 (1) ◽  
pp. 175-177 ◽  
Author(s):  
Gerald R. Stevenson ◽  
Laurel E. Schock ◽  
Rosario Concepcion ◽  
Richard A. Peterson
Keyword(s):  
Anion Radical ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal

A Utilization of Choline Chloride-Based Deep Eutectic Solvent Integrated with Alkaline Earth Metal Hexahydrate in the Pretreatment of Oil Palm Fronds

2021 ◽  
Vol 60 (5) ◽  
pp. 2011-2026
Author(s):  
Eng Kein New ◽  
Ta Yeong Wu ◽  
Khai Shing Voon ◽  
Alessandra Procentese ◽  
Katrina Pui Yee Shak ◽  
...  
Keyword(s):  
Oil Palm ◽  
Alkaline Earth ◽  
Choline Chloride ◽  
Deep Eutectic Solvent ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Oil Palm Fronds ◽  
Palm Fronds

Basicities of alumina-supported alkaline earth metal oxides

1998 ◽  
Vol 65 (1) ◽  
pp. 83-86 ◽  
Author(s):  
Yu-Wen Chen ◽  
Hsueh-Ying Chen ◽  
Wen-Fa Lin
Keyword(s):  
Metal Oxides ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Alkaline Earth Metal ◽  
Alkaline Earth Metal Oxides

Strategies of In Situ Generated Magnesium Catalysis in Asymmetric Reactions

Synlett ◽  
2021 ◽  
Author(s):  
Dongxu Yang ◽  
Linqing Wang
Keyword(s):  
Asymmetric Synthesis ◽  
Alkaline Earth ◽  
Earth Metal ◽  
Asymmetric Reactions ◽  
Chiral Ligands ◽  
Alkaline Earth Metal ◽  
Enantioselective Reactions ◽  
Earth's Crust

AbstractMagnesium (Mg) is a cheap, non-toxic, and recyclable alkaline earth metal that constitutes about 2% weight in the Earth’s crust. The use of magnesium catalysts to forge chiral moieties in molecules is highly attractive. Based on our work in recent years, we describe the current progress in the development of in situ generated magnesium catalysts and their application in asymmetric synthesis. In this perspective, a critically concise classification of in situ generated magnesium catalytic modes, with relevant examples, is presented, and representative mechanisms of each category are discussed. Building on the established diverse strategies, one can foresee that more innovative and structurally creative magnesium catalysts that are generated in situ will be developed to overcome more formidable challenges of catalytic enantioselective reactions.1 Introduction2 Magnesium Catalysts Generated in Situ from Chiral Ligands Containing Dual Reactive Hydrogens3 Magnesium Catalysts Generated in Situ from Monoanionic Chiral Ligands4 Bimetallic and Polymetallic Magnesium Catalysts Assembled in Situ5 Summary and Outlook

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