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AION
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METAL IONS IN BIOLOGICAL SYSTEMS
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Metal ions in life sciences
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Recognition and sensing of anions
PublicationMolecular ion recognition is one of the most intensively studied areas of supramolecular technology. The reason for this is the essential role that ions play in many biological as well as industrial processes. On the other hand, however, it has been proved that ions can have a negative impact on human health and the environment. For these reasons, it is extremly important to develop rapid and simple methods allowing the determination...
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Adsorption of uranium ions on nano-hydroxyapatite and modified by Ca and Ag ions
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Bi-dipole-bound anions
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Halogenoids as Ligands in Superhalogen Anions
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Stability of Superhalogen Anions in the Aqueous Phase
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A Generalized Version of the Lions-Type Lemma
PublicationIn this short paper, I recall the history of dealing with the lack of compactness of a sequence in the case of an unbounded domain and prove the vanishing Lions-type result for a sequence of Lebesgue-measurable functions. This lemma generalizes some results for a class of Orlicz–Sobolev spaces. What matters here is the behavior of the integral, not the space
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Recognition of environmentally important ions
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Evaluation of the content of inorganic anions in tree saps
PublicationTree saps were once commonly used in the countries of Northern, Central and Eastern Europe. Although once almost forgotten, their popularity has been growing recently as part of an interest in organic food and traditional medicine. Tree saps, tapped mainly from birch and maple trees, are drunk both fresh and fermented or are used as raw material for the production of food products, e.g. syrups. The aim of this study was to determine...
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The Role of Counter-Ions in Peptides—An Overview
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Microscopic calculation of the energetics of ions in polyethylene
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Hydration of Oxometallate Ions in Aqueous Solution
PublicationThe strength of hydrogen bonding to and structure of hydrated oxometallate ions in aqueous solution have been studied by double difference infrared (DDIR) spectroscopy and large-angle X-ray scattering (LAXS), respectively. Anions are hydrated by accepting hydrogen bonds from the hydrating water molecules. The oxygen atom of the permanganate and perrhenate ions form weaker and longer hydrogen bonds to water than the hydrogen bonds...
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Selected boron, aluminum, and gallium trihalide and trihydride anions
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Does the protonation of superhalogen anions always lead to superacids?
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Hydration of Carboxylate Anions: Infrared Spectroscopy of Aqueous Solutions
PublicationHydratacja anionów karboksylanowych w roztworach wodnych ich soli sodowych została zbadana przy wykorzystaniu spektroskopii FTIR z zastosowaniem cząsteczki HDO jako sondy molekularnej. Do wyznaczenia widm wody zaburzonej przez rozpuszczalnik wykorzystano ilościową wersję metody widm różnicowych. Widma te wykazują dwa pasma składowe przy ok. 2550 i ok. 2420 cm-1. Pasma te przypisano grupie -COO- anionu R-COO- (R = H, CH3, C2H5),...
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Vibrational Quenching of Optically Pumped Carbon Dimer Anions
PublicationCareful control of quantum states is a gateway to research in many areas of science such as quantum information, quantum-controlled chemistry, and astrophysical processes. Precise optical control of molecular ions remains a challenge due to the scarcity of suitable level schemes, and direct laser cooling has not yet been achieved for either positive or negative molecular ions. Using a cryogenic wire trap, we show how the internal...
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Tb3+ ions in presence of ZnS:Mn2+ nanocrystals immobilized on silica: Energy transfer ZnS→Tb3+ and coordination state of Mn2+ ions
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Negatively Charged Xanthine. I. Anions Formed by Canonical Isomers
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Towards an understanding of the nature of superhalogen anions: anab initiostudy of the system
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Introducing various ligands into superhalogen anions reduces their electronic stabilities
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Dipole-Bound Anions of Glycine Based on the Zwitterion and Neutral Structures
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Is hydrogen capable of playing a central atom role in superhalogen anions?
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Ferrocenylated 1,3,5-triphenylbenzenes for the electrochemical detection of various cations or anions
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Ferrocene-pyrene conjugates for detection of various monovalent anions in solution
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Unusual Influence of Fluorinated Anions on the Stretching Vibrations of Liquid Water
PublicationInfrared (IR) spectroscopy is a commonly used and invaluable tool in the studies of solvation phenomena in aqueous solutions. Concurrently, ab initio molecular dynamics (AIMD) simulations deliver the solvation shell picture at a molecular detail level and allow for a consistent decomposition of the theoretical IR spectrum into underlying spatial correlations. Here, we demonstrate how the novel spectral decomposition techniques...
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Interactions of Chromium Ions with Starch Granules in an Aqueous Environment
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Adsorption Properties of Sepiolite in Relation to Uranium and Lanthanide Ions
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The recovery and the separation of metal ions from galvanic wastewaters
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The application of membrane extraction in the separation of zinc and cadmium ions
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Studies of the aromatic β-diketones as extractant of copper ions
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Understanding the formation of metastable furan dication in collisions with ions
PublicationThis work relies on complementary theoretical and experimental studies of the processes induced by ion-furan collisions. Results of the Molecular Dynamics simulations and exploration of the energy profiles combined with coincidence mass spectrometry provide complete picture of the fragmentation of furan dication.
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Collision Strengths of Astrophysical Interest for Multiply Charged Ions
PublicationThe electron impact excitation and ionization processes are crucial for modeling the spectra of different astrophysical objects, from atmospheres of late-type stars to remnants of supernovae and up to the light emission from neutron star mergers, to name just a few. Despite their signifi- cance, however, little is known quantitatively about these processes for low- and medium-impact energies of, say, Ekin . 5000 eV of the free...
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The structure of dimethylsulfoxide-solvated magnesium and calcium ions in solution and the solid state, and overview of the coordination chemistry of hydrated and solvated alkaline earth metal ions
PublicationOznaczono strukturę w stanie stałym i ciekłym solwatowanych jonów magnezu i wapnia w dimetylosulfotlenku. Stwierdzono, ze jony te tworzą sześciokoordynacyjne solwaty ze średnią długością wiązań Mg-O i Ca-O 2.062(4) i 2.303(5)A. Przegląd literaturowy ukazał, że jony berylu i magnezu we wszystkich rozpuszczalnikach tworzą odpowiednio cztero- i sześciokoordynacyjne solwaty, podczas gdy jony wapnia i strontu istnieją jako ośmiokoordynacyjne...
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Repulsive Coulomb Barriers in Compact Stable and Metastable Multiply Charged Anions
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Stable anions formed by organic molecules substituted with superhalogen functional groups
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A metastable [(MgF3)2]2− dianion composed of two superhalogen anions
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Theoretical Search for Alternative Nine-Electron Ligands Suitable for Superhalogen Anions
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Molar volumes and heat capacities of electrolytes and iIons in N,N-dimethylformamide
PublicationZmierzono gęstości i molowe pojemności elektrolitów typu 1:1 oraz o soli o wyższych liczbach ładunkowych jonów w roztworach w N,N-dimetyloformamidzie w temperaturze 25 stopni Celsjusza. W oparciu o te pomiary wyznaczono standardowe objętości molowe oraz standardowe wartości izobarycznych ciepeł molowych. Uzyskane wartości podzielono na udziały jonowe wykorzystując tetrafenyloboran tetrafenylofosfoniowy (TPTB) jako elektrolit odniesienia....
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Apparent molar volumes and compressibilities of electrolytes and ions in gamma-butyrolactone
PublicationW oparciu o zmierzone wartości gęstości roztworów i rozpuszczalnika w temperaturach od 15 do 40oC wyznaczono pozorne molowe objętości bromku litu, nadchloranu litu, nadchloranu sodu, tetrafenyloboranu sodu oraz bromku tetrafenylofosfoniowego w gamma-butyrolaktonie. Ponadto, wyznaczone prędkości rozchodzenia się dźwięku w 25oC w badanych układach pozwoliły obliczyć pozorne molowe ściśliwości wybranej grupy soli. Uzyskane (w wyniku...
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Upconversion luminescence in tellurite glass codoped with Yb3+/Ho3+ions
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Effect of Starch Phosphorylation on Interaction With Chromium Ions in Aqueous Solutions
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Solid-Phase Microextraction for the Determination of Inorganic Ions: Applications and Possibilities
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Modification of titanium dioxide with platinum ions and clusters: application in photocatalysis
PublicationW celu polepszenia właściwości fotokatalitycznych, TiO2 (komercyjny-P25 oraz syntezowany metoda zol-żel) był domieszkowany za pomocą jonów lub klasterów [Pt3(CO)6]62- platyny. Własności fizyczne fotokatalizatorów były badane za pomocą elektronowego mikroskopu transmisyjnego (TEM), dyfraktometru rentgenowskiego (XRD) oraz analizatora powierzchni właściwej (BET). Dyfuzyjna spektrometria odbiciowa (DRS) została zastosowana w celu...
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Synthesis and Characterization of Magnetic Nanomaterials with Adsorptive Properties of Arsenic Ions
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Investigation of rotational state-changing collisions of C2N− ions with helium
PublicationThe cross sections for rotational inelastic collisions between atoms and a molecular anion can be very large, if the anion has a dipole moment. This makes molecular anions very efficient in cooling atomic gases. We address rotational inelastic collisions of Helium atoms with the molecular anion C2N–. Here we present preliminary calculations of the potential energy surface.
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Spontaneous electron emission vs dissociation in internally hot silver dimer anions
PublicationReferring to a recent experiment, we theoretically study the process of a two-channel decay of the diatomic silver anion (Ag2-), namely the spontaneous electron ejection giving Ag2 + e- and the dissociation leading to Ag- + Ag. The ground state potential energy curves of the silver molecules of diatomic neutral and negative ion were calculated using proper pseudo-potentials and atomic basis sets. We also estimated the non-adiabatic...
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Solid-phase microextraction and ion chromatographic analysis of anions based on polypyrrole electrode
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Electron detachment energies in high-symmetry alkali halide solvated-electron anions
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