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In the structure of the title compound, C(19)H(30)NO(+).Br(-), the rings of the perhydroquinolinium moiety are cis fused. The successful reduction of the ketone functionality of the quinolinone used as starting material is confirmed by the hydroxy C-O bond length of 1.428 (3) A.
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http://dx.doi.org/10.1107/s0108270102014725 | DOI Listing |
J Chem Phys
September 2025
Fakultät Physik, Technische Universität Dortmund, D-44221 Dortmund, Germany.
The dynamics of the different constituents of the ionic liquid 1-hexyl-3-methylimidazolium chloride (HmimCl) is investigated using nuclear magnetic resonance including chlorine relaxometry, line shape analysis, and proton-detected diffusometry, as well as frequency-dependent shear mechanical measurements. This combination of techniques is useful to probe the individual motions of the anions and the cations, and the sample's overall flow response. The 35Cl- dynamics appears to be close to the structural (or α-) relaxation as seen by rheology.
View Article and Find Full Text PDFChempluschem
September 2025
Faculty of Chemistry, University of Warsaw, Pasteura 1, Warsaw, PL 02-093, Poland.
The design, synthesis, and characterization of a series of supramolecular receptors based on electron-deficient aromatic systems capable of engaging in anion-π interactions are reported. Receptors 1 and 3 combine an electron-poor aromatic scaffold with a cation-binding crown ether unit. Binding studies monitored by H NMR titrations in acetonitrile revealed that these receptors exhibit enhanced affinity for bromide anions in the presence of sodium cations, indicating cooperative ion-pair recognition.
View Article and Find Full Text PDFJ Biochem Mol Toxicol
September 2025
Department of Molecular Biology and Genetics, Faculty of Science, Bartin University, Bartin, Turkey.
Schiff bases containing sulfonyl units are important compounds because of their potential biological properties in the therapeutical field. In this study, three novel ligands (L1, L2, and L3) containing the sulfonyl groups, a derivative of Schiff base, were synthesized, and their molecular structures were characterized by FT-IR, H-NMR, C NMR, and elemental analysis results. The antiproliferative activities of these Schiff base ligands were evaluated against human colon cancer (HT-29 and Caco-2) and mouse fibroblast (L929) cells by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) method.
View Article and Find Full Text PDFActa Crystallogr E Crystallogr Commun
September 2025
Department of Chemistry, Bahir Dar University, PO Box 79, Bahir Dar, Ethiopia.
The title compound, CHNO·Br·CBr, consists of one 4-formyl-,-di-methyl-benzenaminium bromide and a tetra-bromo-methane mol-ecule. In the crystal, the bromide ions link 4-formyl-,-di-methyl-benzenaminium moieties through inter-molecular C-H⋯Br and N-H⋯Br hydrogen bonds, while inter-molecular C-H⋯O hydrogen bonds link 4-formyl-,-di-methyl-benzenaminium cations, enclosing (18) ring motifs, into a di-periodic network structure. The tetra-bromo-methane mol-ecules fill the spaces between the layers.
View Article and Find Full Text PDFACS Omega
September 2025
College of Science & College of Material Science and Art Design, Inner Mongolia Agricultural University, Hohhot 010018, China.
Pesticides are of great significance in ensuring food yield. However, the extensive use of pesticides has led to severe environmental pollution and significant economic losses. Chitosan-based pesticide delivery systems potentially present a favorable approach to enhance pesticide using efficiency.
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