Results 11 to 20 of about 60,238 (275)

Pyridinium Salts of Dehydrated Lanthanide Polychlorides

Molecules, 2022
The reaction of lanthanide (Ln) chloride hydrates ([Ln(H2O)n(Cl)3]) with pyridine (py) yielded a set of dehydrated pyridinium (py-H) Ln-polychloride salts. These species were crystallographically characterized as [[py-H-py][py-H]2[LnCl6]] (Ln-6; Ln = La,
Roger E. Cramer, Esteban M. Baca, Timothy J. Boyle   +2 more
doaj   +1 more source

A Comparison of the Photophysical, Electrochemical and Cytotoxic Properties of meso-(2-, 3- and 4-Pyridyl)-BODIPYs and Their Derivatives

Sensors, 2022
Boron dipyrromethene (BODIPY) dyes bearing a pyridyl moiety have been used as metal ion sensors, pH sensors, fluorescence probes, and as sensitizers for phototherapy.
Caroline Ndung’u, Daniel J. LaMaster, Simran Dhingra, Nathan H. Mitchell, Petia Bobadova-Parvanova, Frank R. Fronczek, Noémie Elgrishi, Maria da Graça H. Vicente   +7 more
doaj   +1 more source

1,1′-(Ethane-1,2-diyl)bis(4-{(E)-2-[4-(dimethylamino)phenyl]ethenyl}pyridin-1-ium) dibromide ethanol 0.67-solvate

IUCrData, 2021
The asymmetric unit of the title solvated molecular salt, 3C32H36Br2N42+·6Br−·2C2H5OH, consists of 1.5 cations, three bromide anions and one ethanol solvent molecule of crystallization. The half-cation is completed by crystallographic inversion symmetry.
Shengnan Wang, Gang Liu, Zhichao Wu
doaj   +1 more source

Synthesis, Characterization, Biological Evaluation, and In Silico Studies of Imidazolium-, Pyridinium-, and Ammonium-Based Ionic Liquids Containing n-Butyl Side Chains

Molecules, 2022
Ionic liquids (ILs) have emerged as active pharmaceutical ingredients because of their excellent antibacterial and biological activities. Herein, we used the green-chemistry-synthesis procedure, also known as the metathesis method, to develop three ...
Rabia Hassan, Farzana Nazir, Mah Roosh, Arshemah Qaisar, Uzma Habib, Abdulrahim A. Sajini, Mudassir Iqbal   +6 more
doaj   +1 more source

1,1′-{[3,5-Bis((dodecyloxycarbonyl)-4-phenyl-1,4-dihydropyridine-2,6-diyl]bis(methylene)}bis[4-(anthracen-9-yl)pyridin-1-ium] Dibromide

Molbank, 2022
A synthesis of a cationic moiety and fluorescent moieties containing amphiphilic 1,4-dihydropyridine (1,4-DHP) derivatives was performed starting with the Hantzsch-type cyclization of dodecyl acetoacetate, phenylaldehyde and ammonium acetate. Bromination
Reinis Ozolins, Mara Plotniece, Karlis Pajuste, Reinis Putralis, Nadiia Pikun, Arkadij Sobolev, Aiva Plotniece, Martins Rucins   +7 more
doaj   +1 more source

Stille Reaction on Pyridinium Cations. [PDF]

ChemInform, 2002
AbstractFor Abstract see ChemInform Abstract in Full Text.
García Cuadrado, Domingo, Cuadro Palacios, Ana María, Álvarez-Builla Gómez, Julio, Vaquero López, Juan José   +3 more
openaire   +2 more sources

Catalytic reactions of pyridinium and iminium ions

, 2022
Watson, Mary P.The dissertation focuses on transition metal catalysis of cationic species to make C-C bonds. ☐ Chapter 1 describes a nickel-catalyzed Suzuki-Miyaura cross-coupling of benzylic pyridinium salts. The pyridinium salts act as electrophiles in
Guan, Weiye
core   +1 more source

Tetraaqua[3-oxo-1,3-bis(pyridinium-2-yl)propan-1-olato]nickel(II) tribromide dihydrate

Acta Crystallographica Section E: Crystallographic Communications, 2020
The crystal structure of the title compound, [Ni(C13H11N2O2)(H2O)4]Br3·2H2O, contains an octahedral NiII atom coordinated to the enol form of 1,3-dipyridylpropane-1,3-dione (dppo) and four water molecules. Both pyridyl rings on the ligand are protonated,
Barry L. Westcott, Guy Crundwell, Nilda L. Alicea-Velázquez   +2 more
doaj   +1 more source

Successive Crystallization of Organically Templated Uranyl Sulfates: Synthesis and Crystal Structures of [pyH](H₃O)[(UO₂)₃(SO₄)₄(H₂O)₂], [pyH]₂[(UO₂)₆(SO₄)₇(H₂O)], and [pyH]₂[(UO₂)₂(SO₄)₃]

ChemEngineering, 2021
Three new uranyl sulfates, [pyH](H3O)[(UO2)3(SO4)4(H2O)2] (1), [pyH]2[(UO2)6(SO4)7(H2O)] (2), and [pyH]2[(UO2)2(SO4)3] (3), were produced upon hydrothermal treatment and successive isothermal evaporation.
Evgeny V. Nazarchuk, Dmitri O. Charkin, Oleg I. Siidra   +2 more
doaj   +1 more source

Pyridinium-Inspired Organocatalysts for Carbon Dioxide Fixation: A Density Functional Theory Inspection

, 2023
The current project aims to apply the virtues of minimalism to examine the catalytic ability of commercially organic compounds of small chemical structures to catalyze the coupling reaction between carbon dioxide and propylene oxide (PO) under mild ...
Ibtesam M. Desoky, Ibtesam M. Desoky (14321870), Henry J. Curran, Morad M. El-Hendawy, Henry J. Curran (1267797), Mahmoud M. A. Mohamed (3704503), Morad M. El-Hendawy (14321867), Mahmoud M. A. Mohamed   +7 more
core   +1 more source