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An isocyanide-functionalized imidazole was obtained from 4-(1-imidazol-1-yl)aniline by the Ugi method and subsequently transformed into the corresponding imidazolium salt by treatment with MeI. Coordination of the isocyanide residue allowed the synthesis of several transition metal complexes containing a peripheral imidazolium cation, which are suitable starting materials for the formation of mixed ligand isocyanide-NHC heterometallic complexes.
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http://dx.doi.org/10.1039/d2dt02119f | DOI Listing |
Chem Asian J
September 2025
Bio-Organic Division, Bhabha Atomic Research Centre, Mumbai, 400 085, India.
Fluorescent N-heterocyclic carbene (NHC) metal complexes are useful for various chemical and biological applications. In this study, we developed a simple strategy to synthesize BODIPY-linked NHC metal complexes involving Ag, Cu, Ni, and Pd. The synthesis began with the preparation of BODIPY-imidazolium salt as a precursor ligand.
View Article and Find Full Text PDFNat Commun
August 2025
Department of Chemistry, Johannes Gutenberg University Mainz, Mainz, Germany.
Application of photoactive transition metal complexes in lighting, imaging, sensing, and photocatalysis is usually based on the triplet metal-to-ligand charge transfer (MLCT) excited state of precious metal complexes with 4/5d valence electron configurations. These photocatalysts exhibit excited state lifetimes exceeding hundreds of nanoseconds. Simple 3d transition metal complexes containing abundant metals exhibit lifetimes below 1-2 nanoseconds, and they require multistep ligand syntheses mitigating large-scale implementation.
View Article and Find Full Text PDFJ Am Chem Soc
August 2025
Department of Mechanical and Aerospace Engineering, The Hong Kong University of Science and Technology, Hong Kong SAR 999077, China.
Aqueous pH-neutral organic redox flow batteries are emerging as viable solutions for sustainable grid-scale energy storage. However, their advancement is hindered by the limited availability of catholytes that maintain stable cyclability in both ambient air and inert environments, as well as challenges related to low-cost synthesis and achieving high volumetric capacity. Here, we present the design and synthesis of a series of imidazolium-decorated ferrocene derivatives, culminating in the identification of an ionic liquid-like catholyte that sustains cycling stability in air for over 2000 cycles.
View Article and Find Full Text PDFJ Sep Sci
August 2025
Ames National Laboratory, U.S. Department of Energy, Ames, Iowa, USA.
Deep eutectic solvents (DESs) represent a class of solvents that offer a number of advantages including minimal toxicity, affordability, low vapor pressure, and simple, environmentally friendly preparation methods. They have found utility in areas, such as gas absorption, metal plating, and extractions. However, the relationship between their solvation properties and chemical composition remains poorly understood.
View Article and Find Full Text PDFFront Cell Infect Microbiol
August 2025
Department of Medical Laboratory Sciences, College of Applied Medical Laboratory Sciences, Majmaah University, Al Majma'ah, Saudi Arabia.
Introduction: The discovery of alternative drugs has gained importance due to the many side effects of these drugs used for treatment.
Methods: Herein, the synthesis of a series of unsymmetrical imidazolium salts containing 4-acetylphenyl/4-formylphenyl and bioactive heterocyclic groups such as morpholine, piperidine, pyrrole or pyridine was reported. 4-(1--imidazol-1-yl)acetophenone and 4-(1--imidazol-1-yl)benzaldehyde were used as salt precursors.