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Derivatization of Undecahalogenated -Dodecaborates [BXNH] (X = F-I): Attaching Isocyanate, Amidinium, and Formamide Functionalities.
Inorg Chem
October 2024
Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Universität Leipzig, Linnéstr. 2, 04103 Leipzig, Germany.
Halogenated -dodecaborates are very robust and versatile weakly coordinating anions for numerous applications. The introduction of additional substituents, e.g.
View Article and Find Full Text PDFTwo-Dimensional MoS Nanosheets Derived from Cathodic Exfoliation for Lithium Storage Applications.
Nanomaterials (Basel)
May 2024
Instituto de Ciencia y Tecnología del Carbono, INCAR-CSIC, Francisco Pintado Fe 26, 33011 Oviedo, Spain.
The preparation of 2H-phase MoS thin nanosheets by electrochemical delamination remains a challenge, despite numerous efforts in this direction. In this work, by choosing appropriate intercalating cations for cathodic delamination, the insertion process was facilitated, leading to a higher degree of exfoliation while maintaining the original 2H-phase of the starting bulk MoS material. Specifically, trimethylalkylammonium cations were tested as electrolytes, outperforming their bulkier tetraalkylammonium counterparts, which have been the focus of past studies.
View Article and Find Full Text PDFTetraalkylammonium salts (TAS) in solar energy applications - A review on and toxicity.
Heliyon
April 2024
Solar Energy Research Institute (SERI), Universiti Kebangsaan Malaysia, 43600, Bangi, Selangor, Malaysia.
Tetraalkylammonium salt (TAS) is an organic salt widely employed as a precursor, additive or electrolyte in solar cell applications, such as perovskite or dye-sensitized solar cells. Notably, Perovskite solar cells (PSCs) have garnered acclaim for their exceptional efficiency. However, PSCs have been associated with environmental and health concerns due to the presence of lead (Pb) content, the use of hazardous solvents, and the incorporation of TAS in their fabrication processes, which significantly contributes to environmental and human health toxicity.
View Article and Find Full Text PDFTrimethyllysine Reader Proteins Exhibit Widespread Charge-Agnostic Binding via Different Mechanisms to Cationic and Neutral Ligands.
J Am Chem Soc
February 2024
Department of Chemistry, CB 3290, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, United States.
In the last 40 years, cation-π interactions have become part of the lexicon of noncovalent forces that drive protein binding. Indeed, tetraalkylammoniums are universally bound by aromatic cages in proteins, suggesting that cation-π interactions are a privileged mechanism for binding these ligands. A prominent example is the recognition of histone trimethyllysine (Kme3) by the conserved aromatic cage of reader proteins, dictating gene expression.
View Article and Find Full Text PDFImpact of Catalyst Deuteration on the Reactivity of Chiral Phase-Transfer Organocatalysts.
Chemistry
September 2023
Graduate School of Pharmaceutical Sciences, Kyoto University, Kyoto, 606-8501, Japan.
Site-specifically deuterated organocatalysts were prepared and found to show improved reactivity over the non-deuterated analogs. Two privileged C -symmetric chiral binaphthyl-modified tetraalkylammonium salts were selected for this study. The stability of these phase-transfer catalysts was generally improved by site-specific deuteration, though the degree of improvement was structure dependent.
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