نتایج جستجو برای: anions

تعداد نتایج: 29584  

2000
Maciej Gutowski Piotr Skurski Jack Simons

The possibility of electron binding by a molecule with two polar ends, each of which is capable of electron binding, is studied using electronic structure methods. The destabilizing effects of each dipole on the ability of the other dipole to bind an electron as well as the through-bond splitting between the g and u anion states are examined. In addition, the ability of the two polar ends to bi...

1998
Travis R. Taylor Cangshan Xu Daniel M. Neumark

Anion photoelectron spectra of the carbon monohydrides, C2nH 2 for n51 – 4 and C2nD 2 for n51 – 3, have been measured. The spectra were recorded at a wavelength of 266 nm ~4.657 eV! and yield electron affinities for each species. The spectra are vibrationally resolved, and some of the vibrational modes in the neutral C2nH~D! radicals are assigned. In addition, photoelectron angular distribution...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2011
Xiao-Lin Jiang Lee Wah Lim Toyohide Takeuchi

A vitamin U-bonded stationary phase was prepared and the retention behavior of inorganic anions was examined using ion chromatography. Inorganic anions were retained on the vitamin U-bonded stationary phase under acidic as well as neutral eluent conditions in the ion-exchange mode. The elution order of the examined anions under neutral eluent conditions was nearly the same as that observed in...

Journal: :Separations 2023

Utilization of ionic liquids (ILs) for carbon dioxide (CO2) capture is continuously growing, and further understanding the factors that influence its solubility (notably new ILs) crucial. Herein, CO2 absorption two 1,2,4-triazolium-based ILs was compared with imidazolium-based Ils different anions, namely bis(trifluoromethylsulfonyl)imide, tetrafluoroborate, glycinate. The capacity determined u...

2017
Yuriy Hizhnyi Sergii Nedilko Viktor Borysiuk Andrii Shyichuk

Density functional theory (DFT) computations of the electronic structures of undoped, B- and N-doped CNT(3,3), CNT(5,5) carbon nanotubes, and graphene with adsorbed chromate anions CrO42- were performed within molecular cluster approach. Relaxed geometries, binding energies, charge differences of the adsorbed CrO42- anions, and electronic wave function contour plots were calculated using B3LYP ...

2009
Victor G. Bezchastnov Peter Schmelcher Lorenz S. Cederbaum

The main focus of this review is on magnetically induced anions. Before discussing these new anionic states which exclusively exist in the presence of magnetic fields, we review in some detail the anionic physics without external field. For completeness, we also outline the properties of field-free existing anions when exposed to magnetic fields. The magnetically induced states constitute an in...

Journal: :Chemical communications 2013
Edward R Williams Rebecca M Leithall Robert Raja Mark T Weller

Copper chloropyrophosphate frameworks have been synthesised with a wide variety of complex inorganic anions trapped in a large, flexible, one-dimensional pore, with anions including chloride, bromide, phosphate and the complex metal halo-anions PtCl(4)(2-), PdBr(4)(2-), CuCl(4)(2-) and AuCl(4)(-).

Belkheir Hammouti, Lahcen Bazzi Mohammed Mihit Rachid Salghi

The electrochemical behaviour of lead electrode in hydrochloride solution containing variousoxo-anions at different concentrations was studied by using of cyclic voltammetry (CV) method.Results obtained show that the addition of these inorganic compounds decreases the anodic andcathodic currents peaks according to the following order: H2PO4- > HPO42-> SO42-. It’s revealedalso that the cathodic ...

2007
Qin He Bao-Jun Huang

The title compound, [Ho(2)(C(4)H(4)O(4))(C(8)H(4)O(4))(2)](n), was synthesized hydro-thermally. The Ho atom is coordinated by four O atoms from four benzene-1,4-dicarboxyl-ate (BDC) anions and four O atoms from three succinate anions, in a distorted square-anti-prismatic coordination geometry. The anti-prisms are bridged by the benzene-1,4-dicarboxyl-ate and succinate anions, into a three-dimen...

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