A Raman and IR study of AlCl-based ethereal solutions is here presented and aims at identifying the [AlCl] cation, which has been so far unambiguously characterized by Al NMR spectrometry. To do that, experimental-theoretical vibrational spectroscopy was so employed, and the data are interpreted successfully. As a known amount of water is added to the tetrahydrofuran (THF)-containing electrolyte, a Raman band at 271 cm has its intensity increased along with the most intense band of [AlCl], and such behavior is also seen for a band at 405 cm in the IR spectra. New bands at around 420 and 400 cm are observed in both Raman and IR spectra for the tetraglyme (G4)-based systems. The [AlCl(THF)] complex, in the and forms, is present in the cyclic ether, while the -[AlCl(G4)] isomer is identified in the acyclic one.
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http://dx.doi.org/10.3390/molecules29225377 | DOI Listing |
Langmuir
December 2024
Organic & Bioorganic Chemistry Laboratory, Council of Scientific and Industrial Research (CSIR) - Central Leather Research Institute (CLRI), Adyar, Chennai 600020, India.
Controlling the minimum gelation concentration (MGC) of low molecular weight (LMW) hydrogelators is a key for modulating gel properties, such as mechanical strength, viscoelasticity, and stability, which are crucial for applications ranging from drug delivery to tissue engineering. However, tweaking the MGC under specific conditions, such as pH and/or temperature, poses a considerable challenge. Herein, we varied the ionic strength of buffer solutions using NaCl for several LMW hydrogelators, including Fmoc-Phe, Fmoc-Tyr, Fmoc-Trp, Fmoc-Met, and Fmoc-Cha, and assessed their gelation efficiency at pH 7.
View Article and Find Full Text PDFMolecules
November 2024
Faculty of Chemistry, Jagiellonian University, Gronostajowa 2, 30-387 Kraków, Poland.
J Phys Chem B
December 2024
Ufa Institute of Chemistry of the Ufa Federal Research Centre of the Russian Academy of Science, 71, Prospect Oktyabrya, Ufa 450054, Russia.
This work describes the synthesis of the LiAlCl·SO solvate complex and its properties. Its composition was determined using thermogravimetric analysis, Raman spectroscopy, and UV-vis spectroscopy. The specific ionic conductivity of LiAlCl·SO is 4.
View Article and Find Full Text PDFDalton Trans
December 2024
Department of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
Adv Mater
September 2024
School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710062, P. R. China.
The strong Coulombic interactions between Al and traditional inorganic crystalline cathodes present a significant obstacle in developing high-performance rechargeable aluminum batteries (RABs) that hold promise for safe and sustainable stationary energy storage. While accommodating chloroaluminate ions (AlCl , AlCl, etc.) in redox-active organic compounds offers a promising solution for RABs, the issues of dissolution and low ionic/electronic conductivities plague the development of organic cathodes.
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