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Your search keyword '"Ions -- Physiological aspects"' showing total 11 results
Start Over Descriptor "Ions -- Physiological aspects" Topic chemistry, inorganic -- research
11 results on '"Ions -- Physiological aspects"'

1. Large effects of ion pairing and protonic-hydridic bonding on the stereochemistry and basicity of crown-, azacrown-, and cryptand-222-potassium salts of anionic tetrahydride complexes of iridium(III)

Author

Landau, Shaun E., Groh, Kai E., Lough, Alan J., and Morris, Robert H.

Subjects
Chemistry, Inorganic -- Research, Ions -- Physiological aspects, Protons -- Physiological aspects, Hydrogen bonding -- Physiological aspects, Stereochemistry -- Research, Potassium salts -- Physiological aspects, Anions -- Physiological aspects, Coordination compounds -- Physiological aspects, Iridium -- Physiological aspects, Ligands -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the ion pairs with the potassium-hydride and protonic-hydridic bonds. The structure and reactivity of these bonds have been investigated as a function of the phosphine ligand and the details are presented.

Published
2002

2. Lattice potential energy estimation for complex ionic salts from density measurements

Author

Jenkins, H. Donald Brooke, Tudela, David, and Glasser, Leslie

Subjects
Chemistry, Inorganic -- Research, Density functionals -- Usage, Salts -- Physiological aspects, Ions -- Physiological aspects, Lattice theory -- Analysis, Chemistry
Abstract

Research has been conducted on the ionic materials' lattice energy. The estimation of this energy has been carried out via the volume-based approach to the lattice potential energy and the ability of this approach to provide data for the complex ionic materials is discussed.

Published
2002

3. Synthesis and coordination properties of 1-(diphenylphosphine oxide)-1-(2'-pyridyl N-oxide)-3-(diphenylphosphine oxide)propane

Author

Paine, Robert T., Bond, Evelyn M., Parveen, S., Donhart, Nathan, Duesler, Eileen N., Smith, Karen Ann, and Noth, Heinrich

Subjects
Chemistry, Inorganic -- Research, Oxides -- Physiological aspects, Nitrogen -- Physiological aspects, Phosphates -- Physiological aspects, Propane -- Physiological aspects, Ions -- Physiological aspects, Rare earth metals -- Physiological aspects, Coordination compounds -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the 1-(diphenylphosphine oxide)-1-(2'-pyridyl N-oxide)-3-(diphenylphosphine oxide)propane ligand. The formation and chelation behavior of this ligand have been investigated and the results suggest that this ligand form stable chelate complexes with lanthanide(III) ions.

Published
2002

4. Kinetics and mechanisms of aqueous chlorine reactions with chlorite ion in the presence of chloride ion and acetic acid/acetate buffer

Author

Nicoson, Jeffrey S. and Margerum, Dale W.

Subjects
Chemistry, Inorganic -- Research, Ions -- Physiological aspects, Chlorine -- Physiological aspects, Chlorides -- Physiological aspects, Solution (Chemistry) -- Physiological aspects, Acids -- Physiological aspects, Acetates -- Physiological aspects, Chlorites -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the reaction between Cl (sub)2 and ClO (sub)2 (super)-. The kinetics and mechanism of this reaction have been investigated in acetate buffer via the stopped-flow spectrometric observations of ClO (sub)2 formation and the results are reported.

Published
2002

5. Methanolysis of nitrocefin catalyzed by one and two Zn (super)2+ ions. A simplified model for class B beta-lactamases

Author

Montoya-Pelaez, Pedro J. and Brown, R. S.

Subjects
Chemistry, Inorganic -- Research, Ions -- Physiological aspects, Zinc -- Physiological aspects, Beta lactamases -- Physiological aspects, Methanol -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the nitrocefin. The investigation of its methanolysis in anhydrous methanol has been carried out and the results suggest that this methanolysis has occurred in the active site of Zn (super)2+ (super)- beta-lactamases.

Published
2002

6. Dynamic behavior of the Jahn-Teller distorted Cu(H(sub)2 O) (sub)6 (super)2+ ion in Cu (super)2+ doped Cs (sub)2[Zn(H (sub)2 O) (sub)6](ZrF (sub)6) (sub)2 and the crystal structure of the host lattice

Author

Hitchman, Michael A., Yablokov, Yurii V., Petrashen, Vladimir E., Augustyniak-Jablokov, Maria A., Stratemeier, Horst, Riley, Mark J., Lukaszewicz, Kazimierz, Tomaszewski, Pawel E., and Pietraszko, Adam

Subjects
Chemistry, Inorganic -- Research, Ions -- Physiological aspects, Copper -- Physiological aspects, Carbon -- Physiological aspects, Hydrogen -- Physiological aspects, Zinc -- Physiological aspects, Zirconium -- Physiological aspects, Cesium -- Physiological aspects, Fluorine -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the Cs (sub)2[Zn(H (sub)2 O) (sub)6](ZrF (sub)6) (sub)2. The temperature dependence of the X- and Q-band EPR spectra of this compound which contains Cu (super)2+ has been investigated and the results are reported.

Published
2002

7. Structure of the solvated thallium(I) ion in aqueous, dimethyl sulfoxide, N,N'-dimethylpropyleneurea, and N,N-dimethylthioformamide solution

Author

Persson, Ingmar, Jalilehvand, Farideh, and Sandstrom, Magnus

Subjects
Chemistry, Inorganic -- Research, Solution (Chemistry) -- Physiological aspects, Thallium -- Physiological aspects, Ions -- Physiological aspects, Nitrogen -- Physiological aspects, Amides -- Physiological aspects, Urea -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the solvated thallium(I) ion. The structure of this ion has been investigated in aqueous, dimethyl sulfoxide, N,N'-dimethylpropyleneurea, and N,N-dimethylthioformamide solution via large-angle X-ray scattering and the results indicate that the solvated thallium(I) ion has stereochemically active lone electron pair.

Published
2002

8. Structural characterization and formation kinetics of sitting-atop (SAT) complexes of some porphyrins with copper(II) ion in aqueous acetonitrile relevant to porphyrin metalation mechanism. Structures of aquacopper(II) and Cu(II)-SAT complexes as determined by XAFS spectroscopy

Author

Inamo, Masahiko, Kamiya, Naruhisa, Inada, Yasuhiro, Nomura, Masaharu, and Funahashi, Shigenobu

Subjects
Chemistry, Inorganic -- Research, Porphyrins -- Physiological aspects, Copper -- Physiological aspects, Ions -- Physiological aspects, Acetonitrile -- Physiological aspects, Spectrum analysis -- Usage, Solution (Chemistry) -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the porphyrin sitting-top complexes. The formation of these complexes with the copper(II) ion has been confirmed spectrophotometrically in aqueous acetonitrile and the formation rates determined as the water concentration function have been determined.

Published
2001

9. Ion pair cooperative binding of potassium salts by new rhenium(I) bipyridine crown ether receptors

Author

Uppadine, Lindsay H., Redman, James E., Dent, Simon W., Drew, Michael G. B., and Beer, Paul D.

Subjects
Chemistry, Inorganic -- Research, Potassium salts -- Physiological aspects, Ions -- Physiological aspects, Rhenium -- Physiological aspects, Pyridine -- Physiological aspects, Crown ethers -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the rhenium(I) bipyridine crown ether receptors. The preparation of these receptors and investigation of their ion pair recognition properties are described.

Published
2001

10. Decomposition of ascorbic acid in the presence of cadmium ions leads to formation of a polymeric cadmium oxalate species with peculiar structural features

Author

Orioli, Pierluigi, Bruni, Bruno, Di Vaira, Massimo, Messori, Luigi, and Piccioli, Francesca

Subjects
Chemistry, Inorganic -- Research, Decomposition (Chemistry) -- Physiological aspects, Acids -- Physiological aspects, Cadmium -- Physiological aspects, Ions -- Physiological aspects, Polymers -- Physiological aspects, Oxalates -- Physiological aspects, Solution (Chemistry) -- Physiological aspects, Chemistry
Abstract

Research has been conducted on L-ascorbic acid. Results demonstrate that the slow decomposition of this acid carried out under aerobic pressure in the presence of cadmium ions has led to a crystalline product which is insoluble in water.

Published
2002

11. Lanthanide contraction over the 4f series follows a quadratic decay

Author

Quadrelli, Elsje Alessandra

Subjects
Chemistry, Inorganic -- Research, Rare earth metals -- Physiological aspects, Oxygen -- Physiological aspects, Ions -- Physiological aspects, Chemistry
Abstract

Research has been conducted on the isotypical series of the rare earth compounds. The structural data of these compounds have been analyzed and the results indicate that the contraction of the X-ray determined Ln-O bond distances over the f block is quadratic.

Published
2002

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