Now showing items 351-360 of 400
Synthesis, Crystal Structure and Thermal Reactivity of [ZnX 2 (2-chloropyrazine)] (X = Cl, Br, I) Coordination Compounds
(WILEY-VCH Verlag, 2008-02)
Reaction of zinc(II) halides with 2-chloropyrazine in different solvents leads to the formation of five new coordination compounds that contain either only 2-chloropyrazine or additional water molecules as donor ligands. ...
Enhanced sensitivity electrochemical assay of low-molecular-weight heparins using rotating polyion-sensitive membrane electrodes
(Springer-Verlag, 2003-11)
Use of a novel rotating polycation-sensitive polymer membrane electrode yields sensors that can serve as simple potentiometric titration endpoint detectors for the determination of three FDA approved low-molecular-weight ...
The kinetics of water exchange across the chloroplast membrane
(Elsevier, 1980-08-05)
The kinetics of water exchange across the membrane of class II chloroplasts has been studied by two NMR methods. Both methods utilize Dy(en)3+ (en = ethylenediamine) to induce a transmembranal chemical shift the order of ...
A proteomic analysis of Psychrobacter articus 273-4 adaptation to low temperature and salinity using a 2-D liquid mapping approach
(WILEY-VCH Verlag, 2007-02)
Psychrobacter 273-4 was isolated from a 20 000–40 000–year-old Siberian permafrost core, which is characterized by low temperature, low water activity, and high salinity. To explore how 273-4 survives in the permafrost ...
Comment: phonon spectrum of molecular crystals from exciton sidebands
(Elsevier, 1974-11-01)
Phonon sidebands of excitons in molecular crystals with negligibly small excitation exchange interactions, including isotopic guest systems, are not, in general, expected to be predominantly weighted by translational modes ...
Effects of anharmonicity of molecular vibrations on the diffraction of electrons : Part V. Tetrahedral molecules
(Elsevier, 1984-05)
Unless the skewing of radial distribution peaks is properly taken into account, diffraction analyses of gas molecules may lead to geometrically inconsistent arrays of internuclear distances. It is shown how to derive the ...
Aniline hydrogenolysis on nickel: effects of surface hydrogen and surface structure
(Baltzer Science Publishers, Baarn/Kluwer Academic Publishers; J.C. Baltzer AG, Science Publishers ; Springer Science+Business Media, 1995-09)
Fluorescence yield near-edge spectroscopy (FYNES) above the carbon K edge and temperature programmed reaction spectroscopy (TPRS) have been used as the methods for characterizing the reactivity and structure of adsorbed ...
Low-temperature calorimetry — quo vadis?
(Kluwer Academic Publishers; Wiley Heyden Ltd., Chichester and Akadémiai Kiadó, Budapest ; Springer Science+Business Media, 1978-10)
Experimental progress in adiabatic, cryogenic calorimetry is tersely reviewed and contrasted with other techniques for heat capacity determinations in this temperature region—including DSC. Trends and prognostications of ...
Progress in Practice: Teaching and Learning with Case Studies
(Springer-Verlag; Springer-Verlag New York, Inc., 1996-09)