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Search results for: PYRIDINE-2,3-DICARBOXYLIC ACID
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Structural Insights into New Bi(III) Coordination Polymers with Pyridine-2,3-Dicarboxylic Acid: Photoluminescence Properties and Anti-Helicobacter pylori Activity
PublicationTwo novel coordination polymers, [Bi2(2,3pydc)2(2,3pydcH)2(H2O)]n(1) and {(Et3NH)2[Bi(2,3pydc)(2,3pydcH)Cl2]}n(2) were prepared using as a prolinker pyridine-2,3-dicarboxylic acid(2,3pydcH2). The obtained complexes were fully characterized by elemental analysis, TG/DTG, FT-IR,solid-state photoluminescence, DFT calculations and single-crystal X-ray diffraction. The obtainedcomplexes crystallized in the triclinicP-1 space group (1)...
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Chromogenic amides of pyridine-2,6-dicarboxylic acid as anion receptors
PublicationThe synthesis of simple, chromogenic pyridine-2,6-dicarboxylic acid amides, derivates of isomeric nitroanilines and aminonitrophenols, and their ion binding properties are described. The ligands' response to ionic species was examined by naked eye and was studied with the use of UV-Vis spectroscopy in DMSO and its mixture with water. The effect of the localisation and the type of the substituents in aromatic rings were discussed....
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Paweł Możejko dr hab.
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The first manganese trialkoxysilanethiolates: formation, properties and structure of solvent ligated complexes - [Mn{SSi(OBut)3}2(MeCN)] and [Mn{SSi(OBut)3}2(MeOH)4]
PublicationW pracy przedstawiono otrzymywanie i strukturę pierwszych trialkoksysilanotiolanowych kompleksów manganu(II). Syntezy prowadzone były reakcji 2≡SiSH+ MnCl2 + 2Et3N = (≡SiS)2Mn + 2Et3N.HCl doprowadziły do otrzymania nowych kompleksów: [Mn{SSi(OBut)3}2(MeOH)4] (gdy jako rozpuszczalnik zastosowano MeOH) oraz [Mn{SSi(OBut)3}2(NCCH3)], gdy w badaniach posłużono się acetonitrylem.
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Synthesis, structure characterization and thermal propertiesof [Zr<sub>6</sub>(μ<sub>3</sub>-O)<sub>4</sub>(μ<sub>3</sub>-OH)<sub>4</sub>(OOCCH<sub>2</sub><sup>t</sup>Bu)<sub>9</sub>(μ<sub>2</sub>-OH)<sub>3</sub>]<sub>2</sub>
PublicationTytułowy związek otrzymano w reakcji Zr(OiPr)4 z nadmiarem kwasu 3,3-dimetylobutyrowego. Rentgenowska analiza strukturalna została wykonana w temperaturze 103 i 153K. Struktury zawierają dimery podjednostek o wzorze: [Zr6(μ3-O)4(μ3-OH)4-(OOCCH2tBu)9] połączonych 6 mostkującymi grupami μ2-OH. Analiza zmiennotemperaturowych...
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Francia 1, 2, 3
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The Synthesis of 3-Amino-pyrazine-2-carbohydrazide and 3-Amino-N'-methylpyrazine-2-carbohydrazide Derivatives
PublicationW poszukiwaniu biologicznie aktywnych związków otrzymano szereg pochodnych 3-Amino-pirazyno-2-karbohydrazydu i 3-Amino-N'-metylopirazyno-2-karbohydrazydu w wyniku reakcji hydrazydu aminopirazynoinowegokwasu z izocyjanianami, aldehydami, ketonami, CS2 i kwasem mrówkowym.
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Cobalt(II) tri-tert-butoxysialanethiolates.Synthesis, properties, crystal and molecular structures of [Co{SSi(OtBu)3}2(L)] and[Co{SSi(OtBu)3}2(L)2] type complexes with monodentate nitrogen ligands.
PublicationThe title heteroleptic neutral cobalt(II) tri-tert-butoxysilanethiolate complexes with monodentate nitrogen bases (L) as additional ligands have been prepared by the reactions of [Co{μ-SSi(OtBu)3}{SSi(OtBu)3}(NH3)]2 (1) with respective bases. For pyridine both types have been prepared...
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Mechanism of Isomerization and Acid-Induced Transformations of 3-Hydroxy-4,4'-dimethoxy-3'-methyl-3-oxo-7,7'-bis(piperidino-carbonyloxy)-2,2'-spirobi-[2H,2'H,3H,3'H-benzo[b]thiophene]. Unusual Equilibrium between the Spiro and 3-Hydroxy-benzothiophene Systems.
PublicationStwierdzono, że 3'-hydroksy-4,4'-dimetoksy-3'-metylo-3-okso-7,7'-bis(piperydynokarbonyloksy)-2,2'-spirobi[2H,2'H,3H,3'H-benzo[b]tiofen] występuje w roztworach postaci mieszaniny dwóch diastereoizomerów pozostających w dynamicznej równowadze. Mechanizm tej równowagi oparty jest na odwracalnym otwarciu pierścienia z 1,5 przeniesieniem protonu i utworzeniu przjściowej formy 3-hydroksybenzotiofenu.
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Dissociation of 2-oxopropanoic acid by low energy electrons
PublicationElectron attachment to molecular target can lead to a variety of negative fragment ions. We experimentally probe the main dissociative electron attachment (DEA) channels in 2-oxopropanoic acid (CH3 - CO - COOH) - an important trace component in the Earth's atmosphere. In our studies we utilise nearly mono-energetic electrons at electron energies from 0 eV up to 15 eV.