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The synthesis and structural characterisation of the difluorido organo gold(iii) complexes [AuClF2(SIMes)] and [AuF2(OTeF5)(SIMes)] are presented. The substitution of a fluorido ligand in [AuF3(SIMes)] by an OTeF5 group increases the Lewis acidity of the Au moiety. A scale for carbene affinities is presented, which correlates calculated and experimental values for the Lewis acidity of the metal centre in akin compounds.
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http://dx.doi.org/10.1039/c8cc05233f | DOI Listing |
J Comput Chem
September 2025
Wilhelm-Ostwald-Institut für Physikalische und Theoretische Chemie, Leipzig University, Leipzig, Germany.
We investigated primary and secondary geometric isotope effects (H, D, T) on charge-inverted hydrogen bonds (CIHB) and dihydrogen bonds (DHB) using nuclear-electronic orbital density functional theory (NEO-DFT). The dianionic but electrophilic boron cluster [BH] served as a bonding partner, exhibiting a negatively polarized hydrogen atom in the BH bond. CIHB systems included interactions with Lewis acids (AlH, BH, GaH) and carbenes (CF, CCl, CBr), while DHBs were analyzed with NH, HF, HCl, and HBr.
View Article and Find Full Text PDFAngew Chem Int Ed Engl
September 2025
State Key Laboratory of Chemical Resource Engineering, Beijing Key Laboratory of Electrochemical Process and Technology of Materials, Beijing University of Chemical Technology, Beijing, 10029, P.R. China.
Lithium metal batteries (LMBs) have emerged as the most promising candidate for next-generation high-energy-density energy storage systems. However, their practical implementation is hindered by the inability of conventional carbonate electrolytes to simultaneously stabilize the lithium metal anode and LiNiCoMnO (NCM811) cathode interfaces, particularly under extreme operating conditions. Herein, we present a transformative molecular design using 3,5-difluorophenylboronic acid neopentyl glycol ester (DNE), which uniquely integrates dual interfacial stabilization mechanisms in a single molecule.
View Article and Find Full Text PDFOrg Lett
September 2025
Graduate School of Pharmaceutical Sciences, Kyushu University, 3-1-1 Maidashi, Higashi-ku, Fukuoka 812-8582, Japan.
We report Lewis acid-catalyzed direct conversion of carboxylic acids into primary amides and nitriles using bis(trimethylsilyl)amine as an ammonia surrogate. With 1.1 equiv of bis(trimethylsilyl)amine, ytterbium(III) and hafnium(IV) triflates efficiently catalyzed the reaction, affording various primary amides in high yields with a broad substrate scope.
View Article and Find Full Text PDFJ Agric Food Chem
September 2025
Department of Chemistry and Chemical Engineering, Engineering Research Center of Forestry Biomass Materials and Bioenergy (Ministry of Education), National Forest and Grass Administration Woody Spices (East China) Engineering Technology Research Center, Beijing Forestry University, Beijing 100083, C
This study develops a catalytic system using pyruvic acid (PYA) and Fe to efficiently coproduce xylo-oligosaccharides (XOS) and (manno-oligosaccharides) MOS from food material ( Lam. fruit.) and its waste peel, respectively.
View Article and Find Full Text PDFChemSusChem
September 2025
School of Chemical Sciences, Indian Institute of Technology Mandi, Mandi, 175005, Himachal Pradesh, India.
Accumulation of waste plastics on the earth's surface is a global challenge. There is a possibility of turning this challenge into an opportunity by plastic upcycling. In this work, the potential of bismuth oxychloride (BiOCl) as a heterogeneous catalyst for the glycolysis of polyethylene terephthalate (PET) is reported.
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